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In this video I show the method I use to get the proper air gap on a GM crank sensor. It's an old trick my grandmother taught me and is a pretty fast method to use to make sure you are setting it to the proper limit. -Enjoy!
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50 thoughts on “Quick tip: p0335 chevy crankshaft sensor – shim or no shim?”
  1. Avataaar/Circle Created with python_avatars carcass cruncher says:

    So if the space between the reluctor wheel and the sensor arent within speck will that cause a no spark?

    I had same code, changed the crank shaft sensor and wasnt getting spark. It didnt come with and shims either.

    Thanks man.

  2. Avataaar/Circle Created with python_avatars Jess Atwood says:

    Thank you very much well explained appreciate it have a wonderful day.

  3. Avataaar/Circle Created with python_avatars R Taggs says:

    Took son's truck sensor out and sure enough the ASE mechanic that rebuilt the engine did not shim the sensor, it had a gouge and scratch marks on it.

  4. Avataaar/Circle Created with python_avatars Kelli Smith says:

    0.030 is minimum for the air gap I wonder what the maximum is, where do you get those spacers I can’t seem to locate any, I will look for a suitable washer. So if the face of the sensor is gouged from contacting the exciter wheel does that mean main bearing slop, or would a wearing timing chain cause this ?

  5. Avataaar/Circle Created with python_avatars rhonda oconnell says:

    HI I HAVE A 2009 CHEVY IMPALA 3500 V6 NO POWER RUFF START NO RPM CODE CAME UP P0335

  6. Avataaar/Circle Created with python_avatars Joel Saenz says:

    Helps me out. But aren’t those called calipers?

  7. Avataaar/Circle Created with python_avatars Reggie Baker says:

    Great tip about the air gap! I used play dough and measured. I had to use both shims to get the proper air gap. Truck started right up and my oil leak is gone! I also dropped the connector gasket and put it back on to the connector and had to repair the wires with liquid tape. Thanks for the video!

  8. Avataaar/Circle Created with python_avatars Jimmi Wilson says:

    Go back to ge connector!!! I've been all over youtube. My connector on my 03 express had one of the wires completely hanging out. The only replacement connector I could find anywhere has all three wires white. Whoever designed it is an ass. I looked at the connector I cut off and the wires that are hanging and from the years of fading I cant really tell which go where but I'm pretty sure I just saw a purple wire in your background. Which wires for where?!? Who the hell makes an all white freaking connector???

  9. Avataaar/Circle Created with python_avatars Nanotick1 says:

    It's an old trick my grandmother taught me.
    I read that in the description of the video and just had to see what that funny line was about.
    Great tips like this takes the guess-work out of the repair job. Thank you South Main Auto Repair.

  10. Avataaar/Circle Created with python_avatars Eric Richardson says:

    Had the exact thing happen to my 2011 Nissan Versa. Took my mechanic a few tries but it finally threw a code for him. If it wasn't for the code, it might have been parts cannon time and he didn't want to do that.

  11. Avataaar/Circle Created with python_avatars 667 says:

    Hello. I want to clean my position sensor on my 1999 Blazer 4.3l V6 AWD, because it is full of oil… When i pull it out and back in, is then a relearning nessecarry? Or only when i change it with a new one? Thanks!

  12. Avataaar/Circle Created with python_avatars Johnny Estrada says:

    dumb video waste of time

  13. Avataaar/Circle Created with python_avatars Brittany Bradford says:

    I have a 1995 chevy truck 1500 5.7 I was told i don't have one

  14. Avataaar/Circle Created with python_avatars Panther Platform says:

    Fascinating. I'm working on a 2000 gmc sienna with an intermittent misfire. I'm going to try that relearn procedure.

  15. Avataaar/Circle Created with python_avatars Mother Fucker says:

    It would be a great help if you put the make and model of the car you are working on in the title of the video, otherwise it's MEANINGLESS!!!

  16. Avataaar/Circle Created with python_avatars Valerie Rodriguez says:

    How do I get a hold of you

  17. Avataaar/Circle Created with python_avatars Who Zaskin says:

    Thousandths????? Gee, must be a very well made sensor, and the ECU must have excellent capacitor buffering. Honestly, 70 year old cars had accurate tachometers. I get it takes a lil more precision to get a nice square wave, but wow. Hideous engineering. Thankfully Eric is here with the tips.

  18. Avataaar/Circle Created with python_avatars my1after909 says:

    Hi, Great tip! I just bought a sensor from A1, but am concerned, that the sensor is not held snugly in the retaining plate. I haven't installed it yet, but wonder if that play is 'not a concern' . The part is from Taiwan. Thanks for your great channel!

  19. Avataaar/Circle Created with python_avatars Danny McNeal says:

    This was a great video! I’ve been watching a bunch of YouTube videos to learn how to replace the Crankshaft Position Sensor after my OBDII scan tool showed a P0338 code on my 2000 ZR2. But then I thought, “How do I know if I need a shim? And how do I measure that distance?” Brilliant technique!! And I have a nice micrometer. Thanks a million!! PS: Do I need to do some kind of driving re-learn sequence to get the Blazer to properly use the new sensor? Thanks again!

  20. Avataaar/Circle Created with python_avatars juan marshall says:

    Is it possible that the crank position sensor can be going bad without a code because I have replace all ignition parts as well as the fuel pump and I still get a cut off and most of the times it starts back up sometimes it's don't?

  21. Avataaar/Circle Created with python_avatars onefixitman says:

    Thank you. I am trouble shooting a crank position sensor today on a 4.3L.

  22. Avataaar/Circle Created with python_avatars Modus Operandi Studios says:

    what if you are over .030?

  23. Avataaar/Circle Created with python_avatars Allen Harrell says:

    what is the next step if and new sensor gapped correctly does not fix the problem I still get the PO335 fault

  24. Avataaar/Circle Created with python_avatars christian says:

    Had a similar issue with my 13' outback 3.6. Subaru has a shim kit but they want you to pay for it. Pretty ridiculous. They build a flaw into their vehicles but expect their customers to pick up the tab. The ultimate insult is that the kit is absurdly expensive. 60 bucks for a few gloried washers.

  25. Avataaar/Circle Created with python_avatars Real Spiit says:

    I need some shims for my 5.7L LT1. Anybody know where to get them?

  26. Avataaar/Circle Created with python_avatars Bryan Fields says:

    I have. 98 Silverado 5.7l. New distributor. Crank sensor plugs wires and pcm. Keeps frying coil packs and icms. Had it in a shop and they adjusted timing. But didn't fix the issue. Showing cam crank correlation code. And crank sensor variation not learned. Any help is appreciated

  27. Avataaar/Circle Created with python_avatars Stephen Grant says:

    Miked mine on my 99 burb 5.7 and the closest i could get was with 2 x 3/4 inch copper compression gaskets that are .062 thick, same sensor

  28. Avataaar/Circle Created with python_avatars Stephen Grant says:

    Never seen a shim with a sensor but that was all my problems except for the loose coil causing high primary volts. If not a ACDelco part, GET TWO lol Non GM parts are cheap becuse they didnt pass speck

  29. Avataaar/Circle Created with python_avatars Dave Herrera says:

    Thanks for being thorough. Great video

  30. Avataaar/Circle Created with python_avatars Stephen Grant says:

    Yeah, gonna have to go find shims. silicone isnt working out

  31. Avataaar/Circle Created with python_avatars micro61micro says:

    wow totally smart cool thanks

  32. Avataaar/Circle Created with python_avatars Patrick Mansfield says:

    Sort of related. Can't find either a crank or cam sensor at O'Reilly's? Doesn't show on their web site for a 1994 Chevy Silverado K1500 V8 5.7 4×4? Could it not have either?

  33. Avataaar/Circle Created with python_avatars oldtimedrumcorps says:

    Dont you need to allow for the o ring? The o ring will keep it from inserting all the way . we are talking thousanths right ? what say you?

  34. Avataaar/Circle Created with python_avatars LightningSurvivor 14 says:

    It wasnt until my truck started shuttering that i was questioned if my sensor had shims or not. The previous owner did not have shims so when i ordered a new crank sensor i just pulled it out and put the new one. It started shuttering so i changed out the fuel filter, fuel pump, fuel lines, plugs, wires, distributor and just went ahead and put a new timing chain while i was at it. What a waste of time after watching this video come to find out some sensors dont come with shims, so they were put on and wham, it runs now. SMDH.

  35. Avataaar/Circle Created with python_avatars Mr. Smith says:

    the piece I have must have broke in the hole.. The one that came out is smaller then the replacement? Do they seperate? Or do I grab whats in there and pull on it? It looks like the piece in there is metal? Nobody can answer this yet..

  36. Avataaar/Circle Created with python_avatars Erik Johnson says:

    As a DIYer this is like a huge revelation to me hahahaha!!!! AWESOME. I learn so much on this channel. I had a dream last night that you hired me as an apprentice…a 49 year old drummer working at SMA…your worst nightmare lol

  37. Avataaar/Circle Created with python_avatars Lorenzo Elliott says:

    will that Cooper print spacer stop fire to your wires

  38. Avataaar/Circle Created with python_avatars westernlover33 says:

    I removed both rocker arms from both heads.. without marking where they came from.. did I fick up

  39. Avataaar/Circle Created with python_avatars john argue says:

    Me gusta!

  40. Avataaar/Circle Created with python_avatars Brandon Crocker says:

    A side note to anyone that cares. I was getting a p0300 code on my 2002 chevy silverado. Took it to 3 mechanics, couldn't solve it. I replaced my crank sensor after researching as much as possible. Wasn't throwing a crank code at all. Fixed my p0300. Finally a mechanic says it! Thanks Mr. O!

  41. Avataaar/Circle Created with python_avatars Drew papke says:

    I have the same problem in my crysler town and country 2010 and just noticed 2 lines in the sensor is this why they want the shim done

  42. Avataaar/Circle Created with python_avatars Joe Burttschell says:

    Can the o-ring leak oil on the starter if its old, worn,etc ?

  43. Avataaar/Circle Created with python_avatars joe estes says:

    This exact thing happened to me, so this video helped me out tremendously! Thanks!

  44. Avataaar/Circle Created with python_avatars Kenneth Pauli says:

    I'm working on 08 and im like sma I hope there is a video! Stalled only when hot…212 at idle sitting g at idle for 10 seconds or more maybe 20…30 lol it dies for sure after time…hot.