No start, oil pressure switch not working?

Tiny
JOEL HDZ TINAJERO
  • MEMBER
  • 1994 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Got codes 54, 59 and 67 got a new fuel pump relay. I can hear the fuel pump priming just won't start. Oh, the oil pressure switch not working.
Wednesday, December 14th, 2022 AT 10:28 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
If the oil pressure switch is not working this could be the problem because the computer will shut down the engine if there is no oil pressure. We should also check for spark in the ignition system.

here is a video to help:

https://youtu.be/baq_aEWNQ0Y

Here is the location of the oil pressure switch so you can change it out to see if that helps. Check out the images (below). Please let us know what happens.

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Thursday, December 15th, 2022 AT 2:45 PM

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