Engine will not crank

Tiny
NOT A MEKAINC
  • MEMBER
  • 1997 GMC SONOMA
  • 4 CYL
  • 2WD
  • MANUAL
  • 270,000 MILES
I have the truck listed above it's definitely seen better days. It drove fine for months (after I replaced the starter also the alternator) now when I got to start it (oh and the ignition) the lights all come on. But it won't crank. Some one said it could be the the safety switch. I'm not sure.
Monday, September 20th, 2021 AT 2:42 AM

5 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

So when you turn the key what does it do?
Does it click? Or does it make no noise?

If you getting a click to the starter then you know the power to the starter but the starter is not turning.

If it is not doing anything it could be the clutch switch (as you have already replaced the ignition switch). If the switch is faulty then it will not allow power to go to the starter. This switch is located under the dash right side of the pedals (see diagram).

Another possibility is a bad starter relay. That relay is located under the hood (see diagram).

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let me know what you are experiencing.
Thank you.
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Monday, September 20th, 2021 AT 9:26 AM
Tiny
NOT A MEKAINC
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  • 7 POSTS
I took the starter out and had it tested. I did replace the starter relay. I forgot to mention that it does click when I turn the key so the clutch switch is what I'll try next. Thank you for the help I appreciate it.
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Monday, September 20th, 2021 AT 11:43 AM
Tiny
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  • MECHANIC
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Sounds good. Let me know what you find.
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Monday, September 20th, 2021 AT 11:48 AM
Tiny
NOT A MEKAINC
  • MEMBER
  • 7 POSTS
Well, it took a minute but found out it was actually a bad hot wire. I appreciate everything you've helped me with. Thank you
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Monday, September 27th, 2021 AT 1:28 AM
Tiny
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  • MECHANIC
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That is great. You are welcome.
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Monday, September 27th, 2021 AT 6:05 AM

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