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?

Berk01 answered 5 years ago

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

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beatupchevy answered 5 years ago

ignition module ? look for a good motor to chassis ground

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