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Engine wont stay running

Craigdj

New member
Hello, I have a 2001 5.7L GS. The engine wont stay running unless I hold the key in the start position all the time.

I have 12 volts at the ignition switch on the red battery wire. I have 12 volts on the purple ignition wire when the key is in the run position. I have zero volts on the yellow solenoid wire when the key is in the run position.

I have read that a bad oil pressure switch may cause this, but I am unsure how to test that. I do have good oil pressure when the engine is running.

Any thoughts?

Thanks
 
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