I have a 1990 Siverado with 454 engine. Where is the crakshaft position Sensor?

Asked by Guru1CLDY Sep 05, 2019 at 09:24 AM about the 1990 Chevrolet C/K 3500 Silverado Extended Cab LB 4WD

Question type: Maintenance & Repair

I am attempting to fix my truck. It stalls, and has no power on acceleration. I have changed almost everything except for the ecm computer, the external spark controller and the CRANKSHAFT POSITION SENSOR!!!
Where is the sensor located?

2 Answers

Should be right behind your crank pulley above the crossmember. You’ll see a little plug with a clip. Unhook that and if you feel around you’ll feel a bolt it’s gonna be a 10mm and honestly it’s a pain to get to. Your gonna need an extension and just loosen it all the way out. Hope this helps. I got a 98 gmc k2500 7.4l so it might be a little different

Your Answer:

CarGurus Experts

  • #1
    Joe_2019
    Reputation
    420
  • #2
    Gene Arnett
    Reputation
    380
  • #3
    Keith Massey
    Reputation
    220
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Suburban
9 Great Deals out of 540 listings starting at $4,999
Used Ford F-150
315 Great Deals out of 13,805 listings starting at $4,500
Used GMC Sierra 1500
123 Great Deals out of 8,182 listings starting at $3,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.