Jeep Cherokee 4.0L Misfire and Primary Ignition Trouble Codes

Рет қаралды 320,879

7 жыл бұрын

2001 Jeep Grand Cherokee 4.0L intermittent misfiring with codes P0351, P0352, P0353, P0301, P0302, P0303, P0304, P0305, P0306.
Troubleshooting and repair.
Tests shown
- scope sample rate and when you must increase it
- ignition coil current ramp test
- how to test a crank sensor
- how to test a cam sensor
- why knowing circuit design is critical
- 5v pull-down hall effect sensor testing
- how to adjust the crank sensor air gap
- when to set a scope trace for detail and repetition
- what is scope aliasing
Tools (alternatives to the Snap-on Verus shown in the video)
- PicoScope 4425 4 Channel Standard Diagnostic Kit
www.aeswave.com/cart.php?m=af...
- Autel MaxiSYS MS908 Diagnostic System with Wireless VCI
www.aeswave.com/cart.php?m=af...
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- Snap-on Vantage Pro Training (Part 7)
• Video
- Snap-on Verus Training (Part 13)
• Video
- 1996 Jeep 4.0 timing problems (4 part series on SD Premium)
• 1996 Jeep 4.0 timing p...
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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium www.scannerdanner.com/join-sc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.

Пікірлер: 406

@jesseyates6725 3 жыл бұрын

Caleb, as a father of 5, I recognize your dad is stud! A great communicator/ teacher! Soak that up bud while you can! These years will be gone in a blink of an eye. First time watching your dad and I already have much respect for him. And great job on the camera work!

@ScannerDanner 3 жыл бұрын

Thanks Jesse! In these days, Caleb was just learning how to edit, I believe I was still doing them. You should see what he does with them now. Watch a 2020 or 2021 case study and you'll see it. Thanks again

@deepsquat600 6 жыл бұрын

Paul I love how you have been super imposing the scanner data on the screen ..great effect!

@motorcyclesandridingfree2899 6 жыл бұрын

I appreciate you being so Thorough with you diagnostics and explaining what you are seeing and what it means. Im always trying to learn everyday and all your videos help keep my mind sharp.

@ScannerDanner 6 жыл бұрын

thanks man

@vladmoskalow2230 4 жыл бұрын

Yes! Great video, had random cylinder misfires just like this on a 2001 4.0 Jeep Wrangler with AT. Had a new aftermarket crankshaft position sensor, all the other things too, new plugs, new coil, checked all injectors for resistance, etc etc. Saw this video along with another one from South Main Auto Repair, both said to use the factory original Mopar part, so I took the chance, replaced the aftermarket crankshaft position sensor with the factory piece and problem solved! Thanks for posting the video! Great videos as always!

@russelldavid6724 6 жыл бұрын

Mr Paul Danner is the reason why I got back into auto repair,after 10 years. When I seen things that ScannerDanner does with Verus,Pico and just basic Electronic diagnosis,I was seriously Wowed.thanks Mr Danner for sharing that God given gift you have.Thats why I will be your online student for many Years to come. By the way folks ScannerDanner Premium Channel is absolutely Superb,Cannot get better anywhere.

@ScannerDanner 6 жыл бұрын

I'm without word. Seriously. Thank you so much!

@solomonstorment5532 9 ай бұрын

But my jeep don't have that adjustment because it has 2 bolt holes and have went through 3 or 4 sensors 😊

@adilmchichou4812 6 жыл бұрын

nobody showed me your channel paul. I found out about it just by coincidence in you tube and when I watched just the first video I can not believe that I found exactly what I want because I was desperate in this field . now I am one of you subscribers in premium channel and i will be for ever .i watched more than 400 videos with the regular channel .thanks a lot i think that s not just techs who benefits from you but customers as well by dealing with qualified techs rather than part changers . i think you making a huge change in this field.

@ScannerDanner 6 жыл бұрын

Thank you so much Adil! I really appreciate your comment here for other to see.

@mikeanderson1994 6 жыл бұрын

This guy is my man i really respect you i really love watching all your videos i have learn alot from you thanks to your videos i fixed my own car by my own hands keep up the great work sir

@ScannerDanner 6 жыл бұрын

Thank you Mike! And it is guys like you I have in mind too! I'm not sure if you are a mechanic or not, but even just being able to get enough information to fix your own car makes it all worth it! One job, one misdiagnosis by a garage and you are in way more than the price of admission to what I am offering. Even if you are only here on this channel, I am grateful.

@wyattoneable 6 жыл бұрын

Your editing with the incorporated scope data is pretty cool. It really adds to understanding the correlation.

@ScannerDanner 6 жыл бұрын

Thanks wyatt!

@vt2704 6 жыл бұрын

I got to tell you I never seen someone so excited while filming. Love it. Great video.

@ScannerDanner 6 жыл бұрын

haha that's me brother. Thank you!

@shameelali2549 5 жыл бұрын

Absolutley awesome find paul,loving watching these vids

@JoesAutoElectric 6 жыл бұрын

As usual Paul shows how it's done. I've had a ton of these Jeeps with cranks sensor issues too. Scope is a must for finding these problems. Great video man!

@ScannerDanner 6 жыл бұрын

Thanks Joe!

@ensenada11 6 жыл бұрын

danner danner danner you always blow me away ,,I have been fallowing you for about 3 years , and you are always on point. Thank you for helping all of us in the automotive industry you have made a big impact as a tech congrad on a camera man keep it up I hope I can meet you one day ,

@emphiaz 3 жыл бұрын

Love the video. Helps a ton with stuff in trying to figure out on my Jeep.

@willis9864 5 жыл бұрын

i have a 4.0 that has a mis fire. i don't believe it is what is going on here but this was a really informative video. Watched the whole thing. Thanks and i look forward to watching your other videos.

@donovanstjames3738 4 жыл бұрын

Classroom and field on car dinoses is truly a tricky situation. My dad had a used car dealership. And every car he bought was a mechanical nightmare. It was the best automotive education in the world. I've been a certified automotive technician for 36 years. And still love it. Donavon........

@lilreb720666 4 жыл бұрын

Gotta rewatch this whole video, this is exactly what's going on with mine to a certain extent. These are the exact codes I have on my 97 jeep grand Cherokee. Edit: exact codes and problem Edit 2: disconnected the CPS to see which part I have to pick up. Reconnected to get to the store, and jeep is running great. Misfire problem I've been chasing for months is finally gone. Thanks SD

@itpo3 6 жыл бұрын

you are the Number ONE Teacher ive been learning so much from you God bless you and your family!!!!!

@ScannerDanner 6 жыл бұрын

Thanks so much!

@chriscanty8214 6 жыл бұрын

did a diagnostic in 10 min just by listening to cranking compression thanks for the training learning more every day

@SethHarr 6 жыл бұрын

Its no joke what he teaches at his premium stuff has for sure changed my life. From parts changer to diagnostic tech and has made a huge difference in my world.

@ScannerDanner 6 жыл бұрын

Thanks so much Seth! Keep me posted on that problem child you are working on okay? It's hard to offer support through FB and Messenger. You would be surprised how many of those requests I get everyday. But I try to help guys like you when I can. Guys that have been around for a long time and help support what I am doing certainly take priority!

@SethHarr 6 жыл бұрын

I appreciate all you do Danner and I have no doubt you have to be a busy man. Ill upload a video later and if you have time I would appreciate your feedback. If you don't have time I fully understand. Again thanks for being my teacher.

@ScannerDanner 6 жыл бұрын

Do me a favor and create a post on my forum with that video embedded. Let me know when you do and we can talk on the forum okay? scannerdanner.com/forum/post-your-repair-questions-here.html (The forum is free but you'll need to create an account to post. It keeps the spammers out)

@braol 6 жыл бұрын

I couldn't agree more. Its been almost 1 year since I have been a subscriber to the premium channel. awesome stuff. I have learned a ton. I want all the check engine lights at work now.

@ScannerDanner 6 жыл бұрын

Yes! Me too. Mr. Service Manager, give me all of the check engine lights and electrical problems please. Oh, and throw in the A/C repairs too :-) (just no EVAP cores on Chryslers)

@thetinpin 6 жыл бұрын

I'm not sure if you've used it on other videos (this is the first time I've seen it) but the transparent scan tool/scope overlay is a _really _*_really_* good idea! Mad props SD!

@ScannerDanner 6 жыл бұрын

thanks man! I've been playing around with it for a little while

@MrMagnumforce1 2 жыл бұрын

Thank You I like your video. I was waiting 3 years to put a new wiring harness in mine and finally installed super heavy duty cables.did a bran new Bosch alternator which are hard to find and a bran new starter and battery today. What a difference when I turn the key. I got the harness for 200.00. I think it came from Vegas I need to check paperwork. Was well worth it. There are a few great custom wire companies out there but I'm happy I picked the one I did. I just did my crank sensor and doing my Bosch iridium plugs and coil pack next week. So I can relate watching your video.

@footprint_594 6 жыл бұрын

Thank you kind sir. Although it's not the problem I'm facing, I still learned a lot from watching and will take more things into consideration when diagnosing problems in the future.

@codysautodiagnosticsprogra8706 6 жыл бұрын

I’m a ASE master certified technician with also my L1 advanced level certification and I learn something new in every video i watch of scanner danner. I’ve spent countless hours in trainings and have gotten some good information but to have it shown hands on is priceless. Good work bud and I’ll be subscribing to the premium channel.

@ScannerDanner 6 жыл бұрын

Thanks so much Cody!

@ScannerDanner Жыл бұрын

Found an old comment by you Cody! Now look at you! Freaking awesome man.

@DylanRabier 6 жыл бұрын

This could be an SD Premium video. Good lesson on how important it is to know your fundamentals. It's easy to go on the wrong path here and not realizing this is an input problem. Just like many others I can confirm that the Premium channel with hundreds of case studies and classroom lectures will change your life. Thx Paul

@ScannerDanner 6 жыл бұрын

Thank you Dylan! And thank you for your continued help on my forum. It is important that I answer questions here and it is difficult to handle both.

@jeremiah1797 3 жыл бұрын

Dan the man , I don't personally know you but from what I can pick up you sound like a good dad, your son should be proud of you. thanks for your videos.

@ScannerDanner 3 жыл бұрын

The heart is deceitful above all things, and desperately sick; who can understand it? (Jeremiah 17:9, ESV) Amen 🙏

@ScannerDanner 3 жыл бұрын

My name is Paul BTW 😉

@joeserrano9266 6 жыл бұрын

I will strongly recommend the premium channel and the book. I personally read it and went to all the classes. guys, it's some real good stuff

@ScannerDanner 6 жыл бұрын

Thank you Joe!

@movingupautodiagnostics8645 6 жыл бұрын

I definitely recommend the premium and the book. You'll feel right at home, trust me. Thanks again Paul, words can't describe the huge steps you helped me take. Shalom brother.

@ScannerDanner 6 жыл бұрын

Thank you so my friend and brother in Christ.

@mattanderson1831 6 жыл бұрын

I picked up your book a while ago and have gotten through a good portion of it. Although just an apprentice in a shop that doesn't do much diagnosing and never touched a scope, i still learning about proper waveforms. Going to check out the premium channel, cant argue with $10 a month.

@ScannerDanner 6 жыл бұрын

Thank you so much! You will not be disappointed.

@TcMcCarthy1 4 жыл бұрын

great channel. Wish I lived closer to Pitt.

@andrewadams7439 6 жыл бұрын

true I stay subscribed to the premium channel fanned takes you to school and teaches in detail just like you are in the class room as a student. I've learned so much from the channel instead by this....if you haven't tried the free trial you really don't know how much information your bit seeing and learning it's really just magnificent thanks Paul!!!!!

@andrewadams7439 6 жыл бұрын

Sorry for spelling errors stupid autocorrect

@ScannerDanner 6 жыл бұрын

Thank you so much Andrew! And don't worry about the spelling, I can't spell either :-)

@josepht2670 Жыл бұрын

Great video brother! I love the fact that you got your son with you teaching him as well as your viewers. Very detailed and in depth diagnosis. I was curious to know what Mic 🎤 are you using because the audio for vocals is nice, crisp and clear. I can hear you clearly even with the engine running. That would not be possible without a decent mic. 🫡 To you my boy! And Caleb you're lucky to have a father like yours that can teach you important life skills such as auto repair.

@ScannerDanner Жыл бұрын

Thanks so much. Caleb is now 22 and works for me full time! Every video you'll see these days is 100% created/edited by him. As for the mic I believe this was a Rode mic we were using. Thanks again!

@SmittySmithsonite 6 жыл бұрын

The Premium Channel is where it's at, guys - no better bang for your buck out there, I can guarantee you that! Caleb is going to be a world-class tech in no time flat. I wish I had been learning this stuff at his age - problem is, OBD-II didn't exist back then! LOL :D I'm finding it's alot harder to retain things as I age, compared to when I was in my mid to late teens. That's what makes ScannerDannerPremium so great - I can go back and watch the vids 100x if I need to, until it "sinks in" as they say. I find it beneficial every so often to start over watching Chapter 1, and go through all the lectures to the end, just to make sure I've got it. I still have a long way to go, but I'm alot better off now than where I was before the channel and the book! No question I'll continue my subscription, even after I've got the stuff down pat - we never stop learning, and having it there to look upon when I need it is WELL worth the asking price! Thanks again, for all you do for us Paul!

@ScannerDanner 6 жыл бұрын

Man you guys are awesome! You are doing the selling for me! I can't thank you enough Smitty. You are always so supportive and encouraging to me. Sometimes I'll let that one negative comment over shadow the thousand good ones and I can always rely on you to remind me to just keep doing what I am doing. God bless you my friend.

@SmittySmithsonite 6 жыл бұрын

Thank you Paul - God bless you as well! Sounds like you and I are alot alike - I've struggled with that my entire life. I can still recall comments made to me 35 years ago, and they still cut deep. Pointless to dwell on that, I've learned, but still doesn't make it any easier - it's just the way I'm wired. I overlook all the great things that have happened in my life, and focus on the negative. I guess that's just human nature. You're only human, Paul! :) Don't let the trolls discourage you! You're one in a million - there are probably a handful of people on this planet that put forth the effort to help others as much as you do! What I've seen on KZfaq (and the internet as a whole) is that even if God Himself posted a PERFECT video, there would still be negative comments and thumbs-down votes! The net is a strange place. I always tell my friends, if you want to lose faith in humanity, sell things on Craigslist - I don't know what it is about the internet, but it brings out the strange in some people! LOL

@ScannerDanner 6 жыл бұрын

absolute truth spoken there brother, thanks again

@mustafaxalid5897 Жыл бұрын

This is one the greatest video about wj misfire

@ventureelect 6 жыл бұрын

its really cool when you show the codes on here too. great video as usual.

@ScannerDanner 6 жыл бұрын

thank you!

@darrynworthy7129 6 жыл бұрын

excellent find and description, ive replaced my crank sensor and i got no felt with it. something i will need to check. ive replaced about everything on my 1996 jeep and breaks down under load in gear, i replaced with a new distributor, sensors on throttle body, exhaust uppers and lowers, fuel pump, plugs, ill do plug wires too i think. for people who have little money this is a wonderful video. we all are not well off. i will re look at crank sensor adjustment. after my jeep cut out i put a new crank sensor in, i started jeep ran like new, switched it off thinking great work have a coffee. that was it never ran properly since the first start. and months of replacing stuff has not fixed the jeep. ive had no car, and until it wont go after 10 years of reliability im lost with out it.

@darrynworthy7129 6 жыл бұрын

and i have no fault codes at all on the dash.

@idada459 6 жыл бұрын

This is the best channel to be I am extremely lucky to stumbled across this channel thanks paul

@ScannerDanner 6 жыл бұрын

And I am extremely lucky to have you here. Thank you!

@stationaryenginesworldwide 6 жыл бұрын

I have been a member for a year or more , this is good stuff,well worth the money .......member for life.....

@ScannerDanner 6 жыл бұрын

Thank you so much Warren!

@antoniobaltazarhernandezz8119 2 ай бұрын

Nuevo suscriptor , saludos desde México, tengo un problema parecido con mi wj 99 4.0 y ya me diste conocimiento de por donde ir 👍👍👌👌

@khaniftikhar9225 2 жыл бұрын

Informative video.thank you sir . good teacher

@DytliefMoller 2 жыл бұрын

Thatnks for the note on the Waste spark system... makes troubleshooting easier without scope

@mohamedrahib7685 6 жыл бұрын

thanks Paul great job very good explication

@ScannerDanner 6 жыл бұрын

Thanks mohamed!

@rickh4667 6 жыл бұрын

I love you man! Your the blood hound of electrical diagnostics! God bless from Australia! Love your work! Rick.

@ScannerDanner 6 жыл бұрын

Haha love you too ! Thanks Rick

@mikesaldana3760 6 жыл бұрын

scanner danger my new automotive teacher much respect

@qmyers367 5 жыл бұрын

Did anyone else see the mercedes in the background seemingly hooked up to the boat trailer? Lol awesome presentation and channel

@BSDKllr 6 жыл бұрын

another thing to look for on the jeep 4.0 if the crank sensor loses signal the rpms will drop almost instantly to 0 and pop back up.

@lilreb720666 4 жыл бұрын

This happens to me right now, if this is the actual problem I'm going to be so frickin happy. So glad I found this video and comment

@paulguy6548 4 жыл бұрын

Dude same lookout for this I’m gonna replace my sensor because Emmy ignition coil secondary code 0352 pops up but I have no misfire codes

@lilreb720666 4 жыл бұрын

@@paulguy6548 what year? Mines a 97. I replaced the sensor on mine with what I suspect was a jun k sensor it ran fine for a couple weeks then major stall issues

@HybridDoctor 6 жыл бұрын

Thanks so much for the videos I'm 16 and just starting to work on car's the info is invaluable.

@ScannerDanner 6 жыл бұрын

Awesome! My son Caleb is 16 too and he's learning this stuff by default :-) Stay with me young man. I'll show you the way.

@rgebes222 6 жыл бұрын

ScannerDanner agreed. just turned 18 yesterday and I'm always eager to learn more. I work for my town garage at vehicle maintenance so I'm pretty stoked about that, hoping I can use what I watch here! they have a verus as well and I want to play with it:) unfortunately everything is too new and nothing breaks, yet

@ScannerDanner 6 жыл бұрын

you absolutely will be able to use this stuff! Thanks for being here and nice to meet you!

@DavidS11 6 жыл бұрын

Really interesting case, and love how you incorporate the scanner screen into the video Will check out your other channel when it's available in my country, I also want to get the book. I'm a young tech, 1 year in the field, but I want to specialize in diagnostics to work by myself one day. Thanks for putting up all this valuable content!

@ScannerDanner 6 жыл бұрын

Awesome! Thanks so much! My book is available from my website www.scannerdanner.com as an eBook or paper book. As for the country restrictions KZfaq has placed. There is a way around it by using a VPN. Here is a thread I've created on my forum to help. scannerdanner.com/forum/scannerdanner-book-questions-and-discussion/475-access-to-sd-premium-in-non-listed-countries.html

@DavidS11 6 жыл бұрын

Thanks, I didn't know it was possible to use a VPN, I will check if it works for me

@PianoLesson101 2 жыл бұрын

Speaking of of air-gap impediments, I have an oil leak in the transmission that gets on the sensor and returns Interim Cam/Crank Disconnects. But now, I don't think oil's a problem interfering with the magnetic sensing. I've been driving it for a long while under that condition but now, the missing is out of control on all cylinders (like your situation), the coil's good, with cam and crank sensors both replaced within the last 2 years. I'm thinking to replace the crank again.

@jacquesdaoud4263 6 жыл бұрын

You just made my life easier thank you for posting And all the other guys south mean pin halos and some other good guys I look professional

@ScannerDanner 6 жыл бұрын

Thank you Jacques!

@roquilchacon5313 6 жыл бұрын

Excellent work .... greetings from Venezuela

@ScannerDanner 6 жыл бұрын

awesome! greeting from the US!

@MichaelDoerner 6 жыл бұрын

I like the video editing on this video. Good job!

@ScannerDanner 6 жыл бұрын

thank you! Caleb is helping me edit now too. It's been a huge burden and he is helping me lift it.

@martinguitarhd28 6 жыл бұрын

I too have to give a shout out to Pauls premium channel.Best money i ever spent .I knew nothing about all the sensors and how to test them under the bonnet of a car.Now i don't feel intimidated when looking under anymore .Have learned so much from both channels but you should go and check out his premium channel as i am sure once you do you will not look back and wish you had done so long before now.Thanks Paul for your work and teachings they are appreciated all over the world.These are real life cases and real life reviews from extremely satisfied subscribers.

@ScannerDanner 6 жыл бұрын

Man I can't thank you enough for this comment. You have no idea how much I appreciate all of you. Also, to see how much this is changing people's lives, is the icing on the cake.

@paultomasetti5164 6 жыл бұрын

On the green crank trace I noticed usually the first of the four pulses was dropping out when you increased rpm, my first thought was to far away for the sensor to pickup the detail under rpm. Is there any discernible difference in wave form to determine if its too close or too far or just smashed up?

@garysmith9772 6 жыл бұрын

Whats really funny is that it took probley hundreds of electrical/electronic engineers thousands of hours to design that ignition system. But when there is a fault the mechanic has to know how the system works and there are hundreds of different designs, how to go about troubleshooting it and then how to fix the problem. This takes someone with the qualifications of a college degree'd engineer. how many people are out there that can do this type of repair????? There are only so many Danners, Ivans, Eric O's,

@ScannerDanner 6 жыл бұрын

Thanks so much gary smith! The crazy part about this one? There were no faults whatsoever associated with a crank or cam sensor problem.

@slowpoke96Z28 4 жыл бұрын

It’s critical these days to have some kind of way to research the system. Sometimes an OEM just does weird things, and MOPAR especially. They’ve paired with so many other OEMs, and you can see the various design and engineering philosophy differences between model years. Vehicles have different virtual modules inside one physical controller, different communication protocols, etc, etc. I actually found this video because I was trying to find a way to look at the secondary patterns on this quasi waste spark coil on plug ridiculousness...

@victorporras5254 3 жыл бұрын

Hey men your video it's pretty cool plus I like the attitude toward your work well I have the same issue here with a 99 XJ it stall a lot and the battery always drains I also got misfires codes dunno what to do any hints?fid your videos there pretty fun too keep it up

@bajaclaws 6 жыл бұрын

really cool channel thanks dan

@BrandonF601 6 жыл бұрын

His premium channel is where its at boys....Need to realize whats being offered here and hurry up and sub before he changes the price lol.

@ScannerDanner 6 жыл бұрын

Thanks Brandon! I really appreciate you putting that here. I don't think I do a good enough job of letting people know what is actually there.

@crcdesign9886 6 жыл бұрын

Brandon F EXACTLY! You spend more money on a pack of cigarettes, or a couple cups of coffee if you don't smoke! We spend hundreds of dollars a month on shopkey/alldata, billing and estimate software, etc.. It literally cost you nothing to subscribe to the premium channel. ($.33 a day)

@ScannerDanner 6 жыл бұрын

Mobile AutoMD, again, can't thank you enough for your support and comments here.

@BrandonF601 6 жыл бұрын

Well said my friend....i down graded my sirus xm acct from premium to the base as soon as i found out about pauls premium channel lol. Always room somewhere....usually. Snap on truck could sell this shit 10/wk easy lmao.

@charlesw318 6 жыл бұрын

get work thanks for the videos keep them coming

@ScannerDanner 6 жыл бұрын

Thanks Charles!

@markferraro5250 6 жыл бұрын

great scope capture smoking gun thanks SD

@randyanderson8557 6 жыл бұрын

How is the adjustment done with those sensors so as not to hit the flywheel? Does the CPS air gap apply to jeep renix engines? The sensors for those engines do not have an elongated bolt mounting holes. The CPS should have .5v when cranking. Mine has .2v but starts. What issue could be the result of .2v? thanks in advance

@scopediagnostics3742 3 жыл бұрын

Hi there i been having problems with my signals wire . 5vdc are coming out from the pcm instead of having cero vdc. I did check the engine wires

@MrTwinsrule 5 жыл бұрын

Great work.

@bravobullz7475 3 жыл бұрын

Scannerdanner is a wizard 🧙🏻‍♂️

@mikesaldana3760 6 жыл бұрын

would love to go in person some day maybe on my vacation

@mikesaldana3760 6 жыл бұрын

like a wheel speed sensor I did that with my moms brother chevy truck he was impressed

@throttlebottle5906 6 жыл бұрын

0:40 "this is a jeep with a miss-fire", that sums up every jeep I've seen.... heh, better put that seat-belt on :))

@rsantistevan1057 5 жыл бұрын

Comes standard with every jeep Haha.

@tswaff8106 6 жыл бұрын

Cool get it now ive got big prob though 4.0 jeep middle coil keeps getting hot one exploded not firing either any way to test output from computer at the four connector wires without a scanner would appreciate any help

@garyclemons1129 6 жыл бұрын

good job keep up the great work

@ScannerDanner 6 жыл бұрын

Thanks Gary!

@lashaa5 4 жыл бұрын

Hi, just recently noticed a slight miss after I get gas and yes I've been getting gas everywhere, I went out of town for the holiday's and was passing truck and it hesitated as I increased the speed any idea of what that is, no lights are on? 2019 Jeep Cherokee Latitude

@tariqsous 6 жыл бұрын

Thnx for your help today Kaleb

@ScannerDanner 6 жыл бұрын

I'll tell him. Thank you so much

@tariqsous 6 жыл бұрын

ScannerDanner I came across your channel just today and I explored many of the videos and really like the things you are doing. thumps up

@ScannerDanner 6 жыл бұрын

Thanks for watching and for the comment!

@WilsonBradleyTheOfficial 4 жыл бұрын

Hey Brother, Ive' had my Grand Cherokee Laredo 2001 since begging.. 145K miles. Done most of my own work on it.. Hasn't been to problematic. But living in Texas, and not long ago the radiator cracked and leaked out all fluid(replaced it 8 years ago). Got it home, but it heated up past temp max. Was receiving code P0307 - Missfire on Cylinder 7. Did some troubleshooting and swapped spark coil 1 w #7 and it moved to #1. So replaced Ignition Coil. All good? No more codes and replaced 4 sparks on right side of V8. But now it Idles bad. It's noticeable right away to me, because I had it for years. At first thought it was a misfire or a piston not firing, But now think It might be fuel related. Will check fuel pressure and replace Fuel Filter(Fuel Pressure Regulator) JGC 2001 has them both in one. No engine codes. It starts and ides for 4-5 min roughly.. t hen eventually goes idle high then low and dies. Using Torque App on Android and OBDII. I think I successfully loaded all GCJ PID codes. Nothing red comes up on real time data. Any suggestions? Tanx

@aman.aman.7991 6 жыл бұрын

excellent video great job

@ScannerDanner 6 жыл бұрын

thank you!

@Presto218 6 жыл бұрын

Very informative! I have a 95 Cherokee which runs pretty good, and its getting better with every fix I've been able to do on it (Crank sensor being one of them). One thing that has been robbing horse power is a weak spark, and I am not sure what is causing the weak spark (purplish orange, almost no blue). All the grounds and positive connections are good, and I have replaced the coil. Any suggestion would be helpful. Thank you

@ScannerDanner 6 жыл бұрын

an orange spark is not necessarily a weak spark. a narrow air gap will give you an orange look to the spark. The distance the spark can jump is a better indicator. It should jump at least a half inch, with ideal being around an inch. I am betting on your low power complaint NOT being spark related.

@Presto218 6 жыл бұрын

Ah, well I will have to review it again to see how far the spark will jump. I hope to get a better (more blue) spark anyways, because then the engine will get a better burn. I am considering testing with another coil, since there's always that off chance of any aftermarket replacement being crappy from the start.

@backwoods_bud3306 Жыл бұрын

i have changed my coil ran fine for a few months, changed plugs, i have manufacture control show on my computer not sure what to do, also showing codes for the coil pack, again i replaced put a new one in made the jeep run worse than it did put the old one in runs fine till you take off then skips and wants to die, skim also show put goes out once in awhile, i don't know if my jeeps haunted or just something i'm not seeing.

@greggyfree 5 жыл бұрын

I need help! My 2003 crown Vic I get, p0352, p0353, p0355, p0536, p0357, and a low voltage code only when I shift into drive and the car rests, in drive, after about 20 seconds stopped. Never in park or neutral. Giving it gas brings it back to even. I changed the pcm, the cam sensor, coils, plugs, serp belt. It will also jerk coming from low rpms up a hill. High rpm it runs great. Driving me nuts.

@ozzstars_cars 6 жыл бұрын

Another good SD lesson learned.

@ScannerDanner 6 жыл бұрын

Thanks Ozz! How's the channel coming?

@ozzstars_cars 6 жыл бұрын

The best way for me to put it...my Ytube channel is in third gear and having a bit of trouble getting the RPMS up past 2K. lol I'll keep pressing down on the accelerator. I truly do appreciate you asking and thanks Paul for the help you have given me in the past!

@ScannerDanner 6 жыл бұрын

Well lets put your link here huh? kzfaq.info I wish you all the best my friend. Just keep doing what you do best.

@ozzstars_cars 6 жыл бұрын

Thank you!

@thesetruths1404 Жыл бұрын

Hi I have a 2007 Liberty 3.7L V6, 117,000 miles. Owned it since 67,000 miles. It operated perfectly for the first 30,000 miles and then it started getting a #1 Cyl misfire code P0301. It also seldomly gets a #1 cyl fuel injector circuit open P0201. It must be a very mild fault as the misfire freeze frame data shows it always happens at less than 350 rpm and when cleared it comes back immediately at next startup, cold or hot. So it seems to only happen once on startup as its moving up to regular idle speed. The miss isnt noticeable when driving or idling. Its getting 15.5 mpg fuel mileage. Doesnt burn oil. Doesnt smoke. Has great power. I've changed plugs and coils but no difference. Cleaned air intake, air filter, and ran cleaner through system. I've cleaned and inspected the injector plug and all wires but no difference. Dry / wet compression test of #1, 3 and 5 cylinders all read good: 160 / 175 psi. I'm wondering if there's a mild wire defect for that injector, or just a flakey connection somewhere. Has anyone tried to use a new set of compatible gauge wires and run them to a place closer to the injector control? I can't see where the wires go though. I'm not sure if I should just live with this, or troubleshoot it more. I don’t care about the engine light as we don't have emission requirements. Now that I know the compression is good, I'm not so worried about it. Any suggestions of what to do next? Thanks!

@WilsonBradleyTheOfficial 4 жыл бұрын

BTW; You seem like a good dad. Respect ;-)

@ScannerDanner 4 жыл бұрын

a work in progress but thank you Wilson

@hell123fire1 2 жыл бұрын

Great vid! I have a 02' wrangler that is having similar issues. Missfire on idle occasionally sets code for missfire and o2 heater and gets hot after running for a while. New t-stat new water pump. Could the missfire lead to higher engine temps?

@ScannerDanner 2 жыл бұрын

I'd focus on the overheat first. Could be a head gasket issue, which could also set misfire codes.

@hell123fire1 2 жыл бұрын

@@ScannerDanner thank you for the quick reply.

@jriddle7391 3 жыл бұрын

Thanks for the suggestion..I have a 2003 Jeep Grand Cherokee that's doing the same thing... I've been stumped as to the source of the problem and really didn't know where to start..I do have another question for you... it's recently also started stalling anytime I make a hard right turn but only when my fuel level is under a half tank..what could cause that?

@brendabaldwin13 3 жыл бұрын

Fuel pump going out fuel filter gunked up,

@aliokab6999 6 жыл бұрын

Good job brother

@jeremiahwise8040 2 жыл бұрын

Thank you

@mhouse1712 2 жыл бұрын

I have a 2000 Jeep Wrangler, which I know I should replace, but I have little to no reason to at the moment. Though, I have a rather huge reason to now. Just recently, my Wrangler died on me, on I-85(just north of the metro Atlanta-area, in the dead middle of traffic), but no fault codes ever generated from the ECU. The Wrangler wouldn't crank back up and run, even though the battery had a good charge, and the engine was turning over extremely well(still, not one fault code) Once one of the "HERO" Units helped me push it off of the road and to the shoulder, it stupid vehicle cranked(almost immediately, but still no fault codes). I had an issue a few month later, after leaving a Starbucks in Rome, GA, where my Wrangler refused to start. The vehicle turned over, again, extremely well, but the engine would fire to life. Even then, no error codes. All of this was approximately three years ago. Well, today, of all days, as I was cranking my Jeep Wrangler(to see it running as well as possible, as I rarely leave home(due to disability; always remember: Never, ever just leave a motor vehicle "sitting", without cranking it, running it, and driving it, even for just 5 to 15 minutes. I shouldn't have to say that, but experience has taught me Albert Einstein might have been correct(if he even really said the following) when he stated: "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." ...but, I digress...) an error code finally generated. It was error code P0351. So, thankfully, I finally have a place to start to try and correct this. Now I just need to finally replace my current JK Wrangler with a Wrangler Rubicon. Thank you for posting this video. Great work.

@ScannerDanner 2 жыл бұрын

okay, first, if it doesn't crank (no starter engagement) and the battery is fully charged, it will never be the alternator that will cause that. Second, the P0351 code, you are on the right video my friend. I have other Jeep videos with this primary ignition code too

@codyivory4893 4 жыл бұрын

What type of scanner are you using??

@frankguerra3314 2 жыл бұрын

Omg i didn't know it was only ten dollars a month.i am signing up...ty

@ScannerDanner 2 жыл бұрын

Look forward to seeing you there. Thank you!

@jamesstraass7705 2 ай бұрын

good job

@megomiftah 6 жыл бұрын

nice one

@markgabello58 2 жыл бұрын

Good job 👏👍👌🙌

@calebm4144 6 жыл бұрын

I like your son's name! :p I've been thinking about subscribing to the premium channel for a while now, I think I might do it after seeing all the positive comments here!

@ScannerDanner 6 жыл бұрын

That's awesome! I'm blown away by it myself. You will not be disappointed.

@SA-qn9rg 6 жыл бұрын

Hello I would like to ask a question who is responsible for the timing of the injection of gasoline and who is responsible for the timing of giving the spark cambshaft sensor or crankshaft sensor ? Thank you

@ScannerDanner 6 жыл бұрын

The engine computer is based off of the cam and crank signals.

@ralcng Жыл бұрын

he is the best I wish he is my teacher

@ELITEFLEET554 3 жыл бұрын

My jeep has a bad misfire rough idle no codes at all but you can clearly hear snd feel it. I'm gonna try and test the crank and I hope that it's

@garsgonewild 2 жыл бұрын

Any luck

@ELITEFLEET554 2 жыл бұрын

@@garsgonewild ended up being crank sensor it was replaced with a non OEM by previous owner. Put Mopar sensor and ready to go

@joserojas7777 4 жыл бұрын

How are you p0300 p0304 I got 2 code what do you recommend me to do

@nunya2814 Жыл бұрын

So I found out the hard way after rebuilding a 01 4.0 grand Cherokee engine that the crank sensor was suppose to have an air gap, set the sensor in just a bit too far and nipped the tip and got the intermittent signal loss for cam or crank sensor code as well as a bad miss, the miss didn't come til about a min before shutdown on the 30 min engine break in. Put in a new sensor making sure it wasn't too far in this time, I'm now getting a misfire on cyl 6 code, watch the misfire counter on the scan tool and its a pretty consistent miss. the trans is shifting a bit higher in rpm than it should, also a bit harder than it should as well, could this crank sensor be too far away and causing these issues? The plugs are new and have resistance tested the coil rail, each coils primary windings tested out of spec, actual - 2.5 ohms on all coils, target - .71 - .88ohm, secondary windings tested in spec on all. I'm really scratching my head with this, I don't have any scopes, just a dvm and an autel mx808 scan tool. Ive watched 3 or 4 of your jeep cam crank sensor videos and just don't know what direction my next step should be, any insight you could lend would be greatly appreciated my friend. Keep up the truly awesome work that you do Danner, you are a blessing and an asset to so many people like me.

@ScannerDanner Жыл бұрын

Absolutely it could be too far away now kzfaq.info/get/bejne/l82SeKmZpt-9eWg.html (not a Jeep but same exact crank sensor set up) When you set that sensor, push it in all the way and then back it off just a hair.

@nunya2814 Жыл бұрын

@@ScannerDanner thank you so much for your quick response, I truly appreciate it, helping me regain some sanity, lol I'm mobile and in fl, so I don't get a lot of indoor work and this heat can have ya thinking crazy sometimes. Again sir thank you, your a credit to society.

@wingwalker7380 3 жыл бұрын

Here's one for you. 2004 Jeep Grand Cherokee. Waveform is ramp(as in sawtooth) on cam position sensor. 5.2 volts on scope and DVM. Runs with alternator voltage reg unplugged. Plug back in, throws heavy load on alternator, 14.2 volts at battery. P0340 code pops up and scanner says sense line shorted to battery voltage or ground. 5 volts available on orange wire and black ground on cmp. Cmp replaced, ckp replaced. Alternator and coil pack replaced. PCM replaced with mopar upgrade software. Came to me like this. What's up?

@r431and350rl 3 жыл бұрын

I have a 1998 Jeep Grand Cherokee I have changed cap and rotor and wires and spark plugs and cam sensor crankshaft sensor and upstream o2 sensor and I get po351 wth right?!!! I’m some what mechanically incline but it’s kicking my ass I erase the code but it shuts off every now and then it’s very frustrating

@RaisingAwesome 2 жыл бұрын

I had an engine changed out. When they buttoned things up, they stripped the mount bolt of the crank sensor and I later found they epoxied to "hold" it in place. In two months, I suddenly had a horrible mechanical noise under the hood. It was the sensor bouncing loose on the flywheel teeth. It never even threw a code but the sound made you think a rod had broke.

@bajaclaws 6 жыл бұрын

my Jeep TJ has 91,000, miles I replaced my stock plug's 41,000 miles ago got a misfire in my number 4 cylinder reset my computer and my keep ran fine, however, the light came on again I will replace number 4 spark plug hope it's not a compression issue

@mihijojacobconaustismo5415 4 жыл бұрын

Amigo how are you I was checking my crank sensor and like you say to touch it and see i notice that that is vibrating he needs to be a adjust right I think you solved my problem because mine is vibrating like a little knock I think that will fix my problem if I I just like you say

@ScannerDanner 4 жыл бұрын

Absolutely! And it may be damaged if the air gap adjustment doesn't fix it.