How to Replace Crank Position Sensor on a Gm 3800

Рет қаралды 21,565

2 жыл бұрын

In this video I show you how I replace crank position sensor on a 1988 Oldsmobile Delta 88 , other General Motors vehicles with the 3.8 will be very similar. If you find this video helpful, subscribe. I put out a repair video every week. Thanks for watching.
Link to crank position sensor with 3 pin plug - amzn.to/3howByb
Link to crank position sensor with 4 pin plug - amzn.to/3ntYQ27
Link to crank position sensor mounting bracket - amzn.to/3tHr7n6
Link to feeler gauge - amzn.to/2Xdgufj
Disclaimer:
Due to factors beyond the control of Grim Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Grim Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Grim Repair 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 Grim Repair, 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 Grim Repair.
Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission. There is no additional charge to you.

Пікірлер: 63

@blakebrannam8658 6 ай бұрын

Super thorough. If only every KZfaq tutorial was this concise and helpful!

@GrimRepair 6 ай бұрын

Thanks!

@Ghostacc956 Жыл бұрын

Just came back to provide updated feedback, I have a 1990 Oldsmobile Delta 88 Royale. Thank you this was a great video for anyone who’s never done this before. Once the task was actually done I realized how much I was over thinking it. Your instructions were very clear and informative I was able to get the car back running after the other sensor broke because the belt stripped and got wrapped up on the pulley. Although I did go with a cheaper option than the Delphi sensor. Both options were from Napa Auto Parts, hopefully it holds up the car started on first crank.

@marclefzimiga6293 Жыл бұрын

No way me to 3.8 v6

@garylewis5085 7 ай бұрын

I watched this for a tool list before I went to go change one of these. I just wanted to say thank you for making an easy to understand, informative video on this process. Have a good day, man, you gained a subscriber today.

@GrimRepair 7 ай бұрын

Thanks.

@peterlakers1 5 ай бұрын

👍 thanks for this video, now I could help my cousin in Mexico, he loves his 92 Regal Buick.. now I tell him where's the sensor is , whole I send him the parts..

@josephnewburgh8531 8 ай бұрын

Nice job!😊

@scottoauto2398 10 ай бұрын

Good video man!, thank you!

@GrimRepair 10 ай бұрын

Thanks.

@brycetebeck3295 9 ай бұрын

Scored your self another sub brother, doing crank sensor on my 91 vp commodore which runs the 3800 (L27) looking to build it for boost eventually, gonna be doing trans rebuild, lsd diff and A few other bits to her first though

@GrimRepair 9 ай бұрын

Cool, thank you.

@Cudagirl1970 2 жыл бұрын

Thanks for making this video! I looked at many to try and accomplish this repair and yours was the easiest, most thorough and concise with very good camera angles....and no nonsense! Look forward to more repair tips from you :-)

@GrimRepair 2 жыл бұрын

Thanks

@Cudagirl1970 2 жыл бұрын

@@GrimRepair HI, So I did this repair and also did the camshaft sensor, because I thought it might be a problem, too and also easy and cheap to do. Forgot the part about testing before buttoning up everything...bad idea. I attempted to start the car and it just cranked...no start. Looked around and noticed the belt was off the pulley a bit on the balancer. I reset it and tried again...same thing. I put the belt on 3 times and every time, it shifted a couple of teeth toward the engine. I went under the car and noticed I can see the reluctor rings from the inside of the tire. I didn't look at this before starting so I don't know if that is normal, but it seems like it shouldn't be exposed at all. I feel I seated the balancer all the way, but not sure. I was trying to rewatch the end of the video, when you were lining up and checking the sensor in relationship to the rings and everything seemed good. I am kind of stuck. I pulled off the balancer again and reseated, but not sure it's any different than the first time. Any help is greatly appreciated!

@GrimRepair 2 жыл бұрын

If you line up the keyway on the crank with the slot in the balancer it should seat pretty easily. It sounds like it's not seated though if your belt is sliding off. What was the car doing before that made you suspect the crank sensor? Did the balancer get damaged when you pulled it from the engine, using the puller? Also did you use an ac Delco sensor?

@Cudagirl1970 2 жыл бұрын

Thanks. It was lined up ok, I just needed to have someone hold the flywheel, while I torqued it the rest of the way. I, initially thought the impact wrench tightened it enough...all good now! Thanks, again, much appreciated 👍☺

@Cudagirl1970 2 жыл бұрын

@@GrimRepair .....and, yes, I made sure to use AC Delco parts!

@EzMDr Жыл бұрын

I have 2001 pontiac grandprix, it is running fine. Given the age do you think it is a good idea to change the crank shaft position sensor in my car as a preventative maintenance?

@GrimRepair Жыл бұрын

No, if it's fine leave it alone.

@kacorking2451 2 жыл бұрын

Great video! Thank you! Please Help! In both signal wires with the sensor disconnected: I only get 4.95 V each wire, not 7V. (2004 Buick Le Sabre). The power wire reads 12V. When I connect the sensor, the signal wire's voltages drop to a constant 1.6V and 0.6V. No on and off signals are created when turning the crankshaft. No reaction at all. I tired new ICM, 3 different sensors and they do the same thing. It started when I replaced the CKP sensor to an Acdelco Gold sensor. Car ran for 2 minutes, died, and there there was a metallic sound like a screw falling, and she never started again since. What is wrong? I checked grounds, fuses etc, and found nothing.

@GrimRepair 2 жыл бұрын

Hard to say with out being there. Check your wife's and grounds. Please comment back with what you find, it may help someone else.

@fedupdeliveryservice 2 жыл бұрын

Hi! I have that same car and also a 90 Le Sabre with the same motor. I wanted to know if you use the impact to tighten the bolt back up

@GrimRepair 2 жыл бұрын

I wouldn't use one on the clamping bolt for the sensor. You always have to exercise caution using tools of any kind. Some impacts only make 20ftlbs some make way more. Some people go crazy with an impact. Some people use them everyday and never have a problem. You shouldn't use impacts for tightening, everything has a torque spec.

@fedupdeliveryservice 2 жыл бұрын

@@GrimRepair That right. I was just wondering if you use the impact to tighten the harmonic balancer bolt.

@GrimRepair 2 жыл бұрын

@@fedupdeliveryservice I did

@fedupdeliveryservice 2 жыл бұрын

@@GrimRepair okay and thanks

@Whit_Siever Ай бұрын

4 years ago our Buick had intermittent misfire/no start; local shop charged FORTUNE to replace crank sensor and ignition module. Flash forward today, exact same issues have returned from the grave. Swapped ICM, didn't fix Doing extensive looky loo, have noticed leaking gaskets top and side, the side of block is completely soaked in oil and fluid. Wondering if oils/fluids dripping downwards are shorting out the crank sensor Could that be feasible?

@GrimRepair Ай бұрын

I wouldn't think it would short out the crank sensor it has a weather tight plug on it. See if this video helps you, It took me a few trys to fix the intermittent problems this car was having. kzfaq.info/get/bejne/ZrBjY69yz5e8j3k.htmlsi=0nML7tcAWSuFDhIy

@googleuser3760 Жыл бұрын

Hey .020 you said to gap the sensor to, just to be sure thats 20 thousandths and not a metric measurement right?

@GrimRepair Жыл бұрын

Right with a feeler gauge.

@georgeburch1479 Жыл бұрын

Can you do sensor without pulling balancer

@GrimRepair Жыл бұрын

I don't think so.

@user-de4ld4kd2g 4 ай бұрын

Will this method work on a Buick LeSabre 01

@GrimRepair 4 ай бұрын

That new is probably different

@markborrmannjr Жыл бұрын

You should have replaced the timing cover seal right away.. mine started leaking on my 2005 gtp comp g at 150k

@GrimRepair Жыл бұрын

The front main seal? I haven't had an issue, but that's not a bad idea.

@innovativeguitars3998 12 күн бұрын

I cannot find a genuine ac delco 213-279 Crankshaft position sensor. Is Dorman brand a good choice?

@GrimRepair 12 күн бұрын

@innovativeguitars3998 I wouldn't go with anything but delco, I used standard brand on this repair, and it didn't work. I did knock sensors on a hummer made by dorman, and they didn't work. I did find this though, www.ebay.com/itm/305639635739?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=iCAwQtjTR_m&sssrc=4429486&ssuid=54VcmClYTx2&var=&widget_ver=artemis&media=COPY

@Slim1423 2 жыл бұрын

Hi. What issues did you have with the "Standard" brand cranshaft position sensor , on past jobs with the same motor? Was it they didn't last long or did the engine not run quite right? Just wondering. I know some gm stuff works best with newer 2000 and up gm vehicles.

@GrimRepair 2 жыл бұрын

I used 2 different standard brand sensors on the car in this video and the car wouldn't start at all. I used dorman knock sensors on an h2 and the check engine light came back on, put ac delcos in and everything was fine.

@Slim1423 2 жыл бұрын

@@GrimRepair Ok. Thanks for that info. I will keep that in mind.

@Slim1423 2 жыл бұрын

@@GrimRepair Have you ever had to do a "Relearn Procedure" after intalling a new crankshaft position sensor on a 1991 buick lesabre? It is a procdure i assume to adjust the on board computer to recognize and adjust ignition system to a new crank sensor installation. If you have done this procedure, can it be done without a scanner? If so, please explain.

@GrimRepair 2 жыл бұрын

@@Slim1423 I haven't had to do that. Is it needed on something that old?

@Slim1423 2 жыл бұрын

@@GrimRepair ok. Some brand crank sensor companies mention the relearn procedure may be required for my 91 buick lesabre to work properly. When i replaced my crank sensor recently, the car runs erractic for a few seconds and cuts off. It also seems to be misiring like the timing is off. The new sensor isn't broken, and it was aligned with a spark plug feeler gauge.

@dylanherrtz 11 ай бұрын

how u get the crank bolt out without the whole pulley spinning

@GrimRepair 11 ай бұрын

I used an impact, I believe.

@aaronvivar52 10 ай бұрын

use the belt to keep it still

@dylanherrtz 10 ай бұрын

@@aaronvivar52 just used my impact but also icm issue could still cause premature ckp sensor failure. had one go out 20k on it and turns out it was just my ign module

@northernalberta Жыл бұрын

The clip at the end of the video looks like Anchorage AK

@GrimRepair Жыл бұрын

Good eye.

@marcogallegos8878 8 ай бұрын

You forgot to mention how to remove the bracket if the dowel pin is still in 😔 I can’t just pull it out like yours

@GrimRepair 8 ай бұрын

Do you have a time stamp of the dowel you are talking about? I can't cover every possible thing that could go wrong.

@Ghostacc956 Жыл бұрын

F**k and I just ordered the off brand that comes with a bracket for 44$ and 2 day shipping over the Delphi that was 88$ plus 5 day shipping. I’ve had doubts in my head all day after ordering it through Napa