Using Automotive Test Solutions eSCAN ELITE & eSCOPE ELITE to investigate a 2006 Jeep Liberty stalling problem.
Пікірлер: 126
@ismarmeskovic3 жыл бұрын
11 th commandement by bernie thompson - in scope we trust 💪
@kennedysgarage32813 жыл бұрын
Doing my usual pause & rewind,I noticed the high then low reference point ever 720 degrees @ around 9 to 10 mins. Just after that you explained the over sight while recording. But Bernie you are savage, I really do love your tutorials. I sometimes feel very small in comparison to you, but I'm delighted you decided to show that its ok to make a mistake. Your my Yoda
@1977medavis3 жыл бұрын
Bernie you are a master of diagnostics. I hope to be as good as you one day! Keep up the great work and videos!
@geoepi3219753 жыл бұрын
You will be if you have a clear mind
@gregjones85013 жыл бұрын
I need to attend a class alongside Bernie for a week! You are truly an inspiration to many inspiring techs such as myself and I’m sure thousands of others! Thanks for the videos and taking the time to make sure we that we are diagnosing our customers vehicles correctly!
@themechanic61173 жыл бұрын
Very interesting. I was sure we would find a bad ground. Amazing work as always. Your method is 100%
@PineHollowAutoDiagnostics3 жыл бұрын
That's a crazy failure!! Scope to the rescue! No way to diagnose that one without a scope :)
@dans_Learning_Curve3 жыл бұрын
Ivan, maybe I missed it, but why did the engine stall when a power load was added? How dis a power load cause the sensor to stop reading?
@simonparkinson10533 жыл бұрын
@@dans_Learning_Curve Later in the video Bernie said it was just stalling after a time whether or not electrical loads were added. The original report had been misleading.
@PineHollowAutoDiagnostics3 жыл бұрын
@@dans_Learning_Curve Great question Dan, I was wondering the same thing! Bernie said that it was a coincidence. Maybe the sensor was on the verge of crapping out, and a slight change in rpm made the fault show up more regularly?
@scientist1003 жыл бұрын
@@PineHollowAutoDiagnostics could be when the engine gets hot it starts to act up as he mentioned later in the video that it would randomly die without any load, we all know that sensors tend to act up when heated.
@HouseCallAutoRepair3 жыл бұрын
I can't wait until Spring!!
@detzlerangela Жыл бұрын
I have a 2007 Jeep liberty. Two times this week I turned my vehicle off for about 5-10 minutes, then went to turn it back on. And it was wanting to stall out. It was pretty bad. But I managed to get it started by pushing excessively on the gas. This video made me think outside the box for possible part failures. Thank you for being so clear and understanding. Tomorrow morning I will take it up to Auto Zone for a scan for codes. Then over to the shop for a oil change and hopefully they can use the same scanner tool you have to figure out the problem. Thank you!
@davidblaze16523 жыл бұрын
Bernie is the man no doubt about it. He even crawl underneath the car. All my respect for this working man 👍🇺🇸
@TheKidAustin09 Жыл бұрын
This guy makes me question if I’m even a mechanic 😂😂 he’s seriously amazing at what he does
@robertsmith29567 ай бұрын
Technician. If he was a mechanic he wouldn't need a shop to put in a sensor. I don't blame him, engine gunk and laptop screens and keyboards hate each other.
@FinalStopMobileAutoTech3 жыл бұрын
Pure gold Bernie. I really truly love your diagnostic process and aspire to master it as you have sir. Your teachings have helped me, and the shop I am entrusted to operate become successful. because of you I am able to comfortably provide for my family. Thank you Bernie.
@roxanneabbott84243 жыл бұрын
Bernie I know I'm a female! I watch all your videos and am impressed by your diagnostics and your brilliance!!!
@djosbun3 жыл бұрын
Thank you for another amazing video, Bernie. You preach about testing and let the results guide you to the next test and you're correct every single time. Thanks for being a great teacher!
@josesuarez12483 жыл бұрын
very well, excellent diagnostic Bernie
@reggieshowtos91643 жыл бұрын
Great diagnosis. Shows that scope gives a big contribution to car diagnostics.
@nueyeminor98913 жыл бұрын
You are the best and truly dedicated to the solution and use exact an exact formula for the solution. I enjoy your presentation.
@TheCrazy2433 жыл бұрын
Master diagnostician! Great video. Learned a lot from you.
@macdonaldsmotorworks3 жыл бұрын
I too love your approach.. figure it out.. don't fire the parts cannon. I hate replacing parts "just because it might be". Thanks for illustrating how diag should be done.
@terminaldiagnostics55763 жыл бұрын
Brilliant logical approach I totally enjoy your videos best on KZfaq for us Tech's to aspire to brilliant
@1b9e7n3z3 жыл бұрын
Thank you, You bring us, the mechanics a lot of knowledge, I think never see a teacher like I have in my beginning but here you are, thanks again
@marvinpostadan34843 жыл бұрын
Watching his videoed convinced me to buy his equipment.
@jgeorges30613 жыл бұрын
Bernie, wow what should i say AWESOME/BRILLIANT it really comes in the end to the power of the SCOPE and the information the scope will show you what is going on thank you sir really enjoyable to learn from the master.
@ganeshnarayan55053 жыл бұрын
As always Bernie you are master of diagnostics.
@stephenmarshall53023 жыл бұрын
Brilliant as usual bernie. Thank you. Keep them coming
@marksprague44543 жыл бұрын
Awesome! Still getting on the ground to get it done. That is great work. I look forward to the videos and keep em coming!
@spot-onautomotivediagnosti75833 жыл бұрын
Bernie is beyond genius I swear.
@kinglangren3 жыл бұрын
There still is definitely a correlation between the fan and the crank sensor, maybe the fact that the sensor was bad it was effected by any slight variance in current change... brilliant diagnosis thanks
@scientist1003 жыл бұрын
I will save or sell my Pico 4425a to get the ATS diagnostic kit but I think it is over my reach before I start; for now I will use my Pico to save up, etc. I like the combo here.
@adamapsitis63253 жыл бұрын
Knowledge and skill on another level 🤯. I am trying to fully understand the process here, so it makes sense that you would collect data from the ignition coils and injectors as these are providing the engine with two of the three fundamental elements required for running (Fuel and Ignition) it also makes perfect sense why you looked at the cam/crank signals as these are the inputs used by the PCM to determine fuel and ignition timing. I guess what is key here is to look if the outputs (Injectors, Coils) cut out before the engine stops rotating. I presume if this was a bad fuel pump the outputs would keep operating until the engine stops. If you did not have an input issue like in your case study, where would you go next and why? Cheers, Adam.
@joeluang86953 жыл бұрын
Large electrical loads briefly loads the engine speed and consequently changes the engine cadence. Hall effect type systems are very sensitive to frequency changes and thus the change in engine cadence exposes a defective crank sensor. This is one of the reasons why I prefer Hall effect type systems over VRS systems, they are much more sensitive and simpler in design, to approach this level of resolution, GM uses two VRS sensors!? Despite the hate and lack of funding for development those Dodge boys can still compete with the best. I believe Chrysler could have implemented a filter for a small glitch like this but - why would anyone not want to know of an early impending failure?
@sheldonx32833 жыл бұрын
Joe luang - that's exactly what I was saying!!! If the pcm tolerance is turned that closely for the hall effect sensor to detect malfunctions, then it should at least trigger a pending code in the PCM for crank sensor performance / intermittent. Then after repeated occurence it would set a store code. Manufacturers trying to cut costs in software development!!! As expected from Chrysler! Instead they investing in SGM trying to lock technician's out, stating it's for security reasons. 👎👎👎
@baxrok2.3 жыл бұрын
Interesting especially since the previous vehicle had a similar anomaly yet wasn't affected by it. Thanks!
@eddieg3293 жыл бұрын
sir.. awesome work ..i can only wish i had you near me..i have the same jeep ..with simular issues and for the life of me i can get it to do is Job... will need to get my hands on that os/ scope
@rickcoleman89033 жыл бұрын
My favorite diagbostician.
@mikechiodetti44823 жыл бұрын
You were able to see it quit. I've had intermittents that did something similar. Two 1997 GMC Mini vans with the 4.3L V6 engines over 100,000 miles on the first van, had the same intermittent stalling, usually on the road. It took a lot of driving with my old two channel scope and DMM ( it was over 15 years ago when I had these two intermittents) to find out it "could be" the ign module or ign coil. When the intermittent had shown itself, I finally had the scope positioned to show the computer timing output which was sent to the external ignition module. The module in turn toggled the Neg side of the ignition coil which then sent the spark through the distributor, the spark plug wires and the spark plugs. With the scope on "flight record," I saw when the engine stopped, the signal to the coil from the module stopped, but the engine took time to fully stop. During that ramp down time ( of the engine) the PCM was still sending the computer timing output ( 5 volt square wave) indicating the crank sensor was still sending the signal to the computer. Without the old Fluke 98 scope it would have been fire the parts cannon! As it was, the spark plug center electrodes were worn down to the insulator, the ignition wires were original, and possibly the ignition coil was stressed due to the worn out plugs. After replacing those parts, no more intermittent stalling.
@billsmith22123 жыл бұрын
Too many shops change parts as part of THEIR " diagnosis " . I would guess the alternator and computer cost about $ 1000.00 installed . The vehicle then does the exact SAME thing . I don't see how they get away with it . Lube Tech , maybe - if they use the correct fluids . Technician - definitely not . This is what happens when you use your BIG TOE instead of a scope .
@dans_Learning_Curve3 жыл бұрын
I wonder if the customer got charged for those items?!
@troutjunkie73303 жыл бұрын
@@dans_Learning_Curve You bet they did
@nueyeminor98913 жыл бұрын
That's what's going on now I changed TCM, ECM, BCM ,Throttle body, injectors ,coil pack Ngk spark plugs, air temp sensor, both fuel pumps and still doing the same thing. Hard to start, run until it idles down and cuts off. Unless I keep my foot lightly on the gas and it stays running. Is it the crank or cam shift sensor.
@dannyryder13 жыл бұрын
Thanks Bernie! Great diagnosis as usual.
@autodiagnerdzllc89663 жыл бұрын
Great video Bernie! Thank you for clarifying he video.
@samcripes30463 жыл бұрын
He's screaming at the end. Been there. Thank you.
@zach914v83 жыл бұрын
Man I learn a lot from you! Thanks for your vids!
@cullenmiller81703 жыл бұрын
Great Video. I wish I could get the training and the equipment to do this kind of work. I always enjoyed the trouble shooting when I worked on older cranes. I just missed the boat on the computer stuff.
@simonparkinson10533 жыл бұрын
There is so much fundamentals training on offer for free on KZfaq, such as Scanner Danner, Schrodinger's Box, then you've got the awesome case studies such as these from ATS, Ivan at Pine Hollow, Eric O at South Main Auto and many many more. You don't have to start big, any scope is better than none and there are some good 2 channel scopes out there for little money. 8 channels on the ATS Elite lets you capture more signals at once, with fewer channels you would have to run the tests multiple times to build the picture but you could still do it.... as long as the fault could be reproduced on demand or was occurring frequently. If you noticed here, by observing the 8 channels simultaneously, it was easy to see the relationship of cam, crank ,coils, injectors and power - and then quickly deciding which ones *weren't* an issue, hiding those traces allowing the problem ones to be focused on.
@cullenmiller81703 жыл бұрын
@@simonparkinson1053 Thanks for your kind words. I do watch Paul, SMA and a couple of others. I enjoy watching those guys for sure and have learned a lot. There's your problem lady. :-)
@simonparkinson10533 жыл бұрын
@@cullenmiller8170 Cheers! When the time is right for you, you can progress to established training providers, that's the route I took. These ATS case studies are excellent demonstrations of diagnostic process, starting wide and ending with a pinpoint focus
@tharakanuwan99863 жыл бұрын
Big thumbs up . Nice work
@joeandgod13 жыл бұрын
How does turning on the AC affect the operation of a bad crank sensor? A bad crank sensor is going to be a bad crank sensor regardless of anything else is turned on or not. This sounded like a bad ground.
@robertmullen24803 жыл бұрын
thanks Bernie! great capture like your channell
@mc996cars13 жыл бұрын
You are the best Bernie! Keep up the great work and Thanks for always sharing.
@tjmhlw3 жыл бұрын
Bernie you are the man do you have a text book series about scopes
@nueyeminor98913 жыл бұрын
Will it be cheaper to ship my 2006 3.5 dodge charger stalling issue to you or fly you to Texas?
@stevenlee15443 жыл бұрын
I LIKE THIS GUY AND I NEED TO HIRE HIM!!!!!!!!!!!!
@neverstoplearning3823 жыл бұрын
Many thanks again sir. God bless.
@ramonsolis39673 жыл бұрын
Would love to be his apprentice!!
@bartscave3 жыл бұрын
Wow! Still can’t wrap my head around how the electrical load was related to the sensor failure. I suppose it is just a coincidence. I was expecting a bad ground or battery.
@rauls300ce3 жыл бұрын
Bernie mention that it was not the electrical load it was a coincidence the only problem was bad crank sensor.
@joeandgod13 жыл бұрын
@@rauls300ce So it was a coincidence, that every single time you turnedon the AC, the crank sensor would act up? That was the biggest coincidence I've ever heard of in history.
@richardbrown30253 жыл бұрын
Could it be possible that any load put on the engine slow the RPM and push the crank sensor into the fail mode
@shawnbauman54633 жыл бұрын
Love the passion. I get the fustrating bit about shops guessing. I don't get it either. I'm not 100% perfect but if you prove what is wrong with logic/testing/data you'll be right 98% of the time. The other 2% you missed a step, didn't have the whole story, or overlooked something.
@GraditelMacedonia3 жыл бұрын
True, and thank you.
@Lambros_Stefaneas3 жыл бұрын
congratulations. RESPECT.
@kennethbode20173 жыл бұрын
you have great passion for your work.
@getyourkicksagain3 жыл бұрын
Fantastic explanation and diagnostics! Now all I need is a $cope.
@jdtractorman74453 жыл бұрын
I've never worked on a Jeep Liberty and I was thinking either crank sensor or cam sensor issue. The added electrical load is putting added stress on it.
@euroauto613 жыл бұрын
Another great video from Ats thank you!!!!
@pyralux013 жыл бұрын
So the alternator and computer are free....right?...... or are you going to put the old ones back on....
@jcmobilediagnostics86113 жыл бұрын
Do you need a scope? Yes, there would’ve been no other way to see that fault!
@thomas5223 Жыл бұрын
nice job
@bornforparadise75173 жыл бұрын
Great diagnostic , excellent just excellent
@toddw.98453 жыл бұрын
Good work Bernie !
@robertmobileman83043 жыл бұрын
wicked video Bernie thanks
@johnbonifas60403 жыл бұрын
Who the hell would do a thumbs down this was a great video good job God bless
@stevenkietzke55823 жыл бұрын
Nice description and explanation Thanks
@tjmhlw3 жыл бұрын
Have to get the escope
@4wheellife4473 жыл бұрын
great content ❤️❤️
@markhollins21903 жыл бұрын
A computer and ALT was replaced my God😵 always check your wiring...
@IAMNOSLEEP3 жыл бұрын
Thanks for sharing Bernie... Cheers.
@googacct3 жыл бұрын
I was thinking at some point in the troubleshooting that a probe would have been connected to the fan motor power to check for the coincidence between the failing cam sensor and the fan motor turning on. That might have helped decide sooner that the two were not related.
@JoelAutomotiveInaction3 жыл бұрын
thanks you Bernie this are real diagnostic
@stewartboucaud99193 жыл бұрын
Awesome job. I love your videos.
@oldschool97463 жыл бұрын
Why would anyone give this a thumbs down?
@peters18213 жыл бұрын
Great job as always!
@rafaelvasquez35662 жыл бұрын
Excellent informed 👍x100
@juweekhan3 жыл бұрын
Well done another great video thanks
@richarddiaz5915 ай бұрын
Wondering why it wouldn't activate the CKP CEL.
@HouseCallAutoRepair3 жыл бұрын
I saw the issue right away, but didn't have a clue what caused it. Thought it was a poor ground, dropping out the sensor....
@alexlongpre45273 жыл бұрын
Maybe I missed it, but what was the correlation between the signal not being held to ground long enough and the load on the charging system?
@hightttech3 жыл бұрын
Hey, i needed ignition key just like that after my van burglarized 😆
@darrenogorman1213 жыл бұрын
Micro amp clamp the signal wire?
@aymenmohamed113411 ай бұрын
Awesome
@WissamAbbas3 жыл бұрын
awesome thank you
@HristovRumen3 жыл бұрын
Amazing
@luisenriquesandovalquiros43023 жыл бұрын
Saludos desde Costa Rica kike de taller Pit Lane . Gracias por compartir .
@techautomotriz1383 жыл бұрын
Thanks, that's true
@sa432jh5 ай бұрын
Crank position sensor , known fault
@DependableAutoTruck3 жыл бұрын
why did the fan control make it die
@jovangomez93803 жыл бұрын
can you help me own a waveforms books
@1vaquita3 жыл бұрын
not explain how affect the load to the sensor
@joekeefe32293 жыл бұрын
Thanks for back tracking, I saw the 2 high traces and wonder that cant be right. I take your diags as bible truth and you showed again that tho your human you still succeed
@joeandgod13 жыл бұрын
Good diagnostics, but this video made absolutely no sense.... How would the AC(blower motor/AC clutch) cause the crank sensor to fail at the exact same time that it was turned on?
@SuperMarioDiagnostics3 жыл бұрын
I love the ones that can't be proven without a scope!
@shaunsautorepairs54103 жыл бұрын
you can hear the frustration in his voice at the end....please guys test properly...dont be a parts changer
@richardnilsen510 ай бұрын
Too easy for bernie A superstar showing The pee wees how to do a simple diagnosis ♦️♦️♦️
@sargetester993 жыл бұрын
Deguass the sensor.
@mike-yp1uk3 жыл бұрын
Slam dunk again
@turningwrenchesautorepairm50173 жыл бұрын
12th command by Bernie T- stop and slow down
@fp80073 жыл бұрын
👍⭐⭐⭐⭐⭐🤓😎
@MaicSalazarDiagnostics3 жыл бұрын
What it shuts down only when ac or lights were turn on?
@PineHollowAutoDiagnostics3 жыл бұрын
Hey Maic! I was wondering the same thing bro! Very strange coincidence :)
@Discretesignals3 жыл бұрын
Maybe the extra noise on the ground system with loads turned on amplified the failing component in the sensor?
@MaicSalazarDiagnostics3 жыл бұрын
@@PineHollowAutoDiagnostics I was expecting a bad engine ground or something like that. A guess it also happened with no loads.
@ismarmeskovic3 жыл бұрын
@@MaicSalazarDiagnostics yup bernie mentioned that later
@patburnsent3 жыл бұрын
@@PineHollowAutoDiagnostics Ivan, this is the first video I've watched from this guy. Why no codes set?