will not crank

1994 GMC SIERRA
190,000 MILES • 5.7L • V8 • 4WD • MANUAL
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DON JOHNSON2
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  • 3 POSTS
My truck has power to the dash but will not crank. I have replaced the fusible link, the starter, the ignition switch and the coil, still will not crank. Help me please!
Apr 30, 2017 at 12:30 PM
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STRAILER
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Hello,

It sounds like you have a clutch safety switch that has gone bad. Here is a wiring diagram and a guide to help you get the problem fixed.

Check for power through the clutch switch when depressed.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken

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May 3, 2017 at 9:56 AM
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DON JOHNSON2
  • MEMBER
  • 3 POSTS
The clutch switch is good, still no crank. Am checking all grounds now.
May 3, 2017 at 9:45 PM
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HMAC300
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just to add here, these older GM products have a fusible link at starter and they go bad not letting vehicles start check for voltage on both sides
May 4, 2017 at 6:10 AM
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STRAILER
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Hey Don,

Use the wiring diagram I have provided above to help with your testing and get back to us.

Best, Ken
May 4, 2017 at 9:32 AM