Engine will not crank

1989 GMC SIERRA

2,905,474 MILES

BOBBY PATE

MEMBER
1 POST

I push my clutch in and turn my key and it won't do anything. Replaced the battery thinking it was it because the voltage went down, I can pull turn the key on pull started and it'll run but if it shuts off and it won't crank again. I already replaced the clutch sensor switch.

Dec 8, 2021 at 10:25 PM

ASEMASTER6371

✓Experienced Mechanic
52,796 POSTS

Good morning,

You need to go to the clutch switch and check for voltage to the connector with the key in the start position. You need voltage there. It comes directly from the ignition switch.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

I attached the wiring diagram for you to view.

From the switch, it goes to the starter motor. It is the purple wire on the starter solenoid.

Roy

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Professional Diagram for 2CarPros Members
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Dec 8, 2021 at 11:01 PM

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