Intermittent no crank, no start issue

1993 CHEVROLET 1500
191,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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ERICKK11
  • MEMBER
  • 1 POST
My truck randomly doesn’t want to start. But will with a jump and will run fine until it doesn’t want to start again. sometimes it’s just 30 minutes and sometimes it’s more time. I tested my battery and it’s at 12.2v and with alternator running it’s at 14.0. when it doesn’t turn on I turn on the lights and when I go to crank, they dim a bit. I have yet to look at my start but figured I’d see if anyone can help or suggest something first. Also a ground wire from the filler neck isn’t grounded to nowhere but doubt that’s the problem.
Jun 17, 2021 at 8:56 AM
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KASEKENNY
  • Experienced Mechanic
  • 18,907 POSTS
Did you load test the battery or just check the voltage with a meter?

You may have a weak cell which is what I suspect it is with it being 12.2 and not slightly higher.

Clearly 12.2 is not terrible voltage but if the engine starts with no issue with a jump start shows that the amperage of the battery may be low.

https://www.2carpros.com/articles/car-battery-load-test

Let's load check it and then go from there but I suspect this is the issue. If it is not here are the next things we need to check.

https://www.2carpros.com/articles/starter-not-working-repair

Here is a guide if you need it to replace the battery. Please run through all this material and let us know what happens.

https://www.2carpros.com/articles/how-to-replace-a-car-battery

Thanks
Jun 18, 2021 at 12:43 PM
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