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Engine wont crank over

Tiny
VLARRY
  • MEMBER
  • 1988 CHEVROLET S-10
  • 2.8L
  • V6
  • 4WD
  • AUTOMATIC
  • 216,000 MILES
So I recently purchased this vehicle used, but at the moment I can't figure out exactly what's wrong with it. The guy I bought it from said he had hired somebody to install the used engine with 86,000 miles on it but they never finished the job. It is missing hoses. I just replaced the ICM but I'm trying to figure out why it still won't crank and why the gauges freak out when I turn the key.
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Sunday, June 30th, 2019 AT 12:28 PM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Hello,

It sounds like the battery is weak. To confirm the issue here is a guide to help you load test the battery. Also check the grounds from the battery to the engine block and frame.

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

Please run down this guide and report back.
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Monday, July 1st, 2019 AT 2:20 PM
Tiny
VLARRY
  • MEMBER
  • 6 POSTS
I tried to jump start it yesterday, but I believe the cables I used are just too old as there were no sparks coming from either battery. But another issue is the rpm gauge continuously going up without engine even being on it just goes up and the fuel pump works. I just don't know why the rpm goes up.
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Monday, July 1st, 2019 AT 2:47 PM
Tiny
VLARRY
  • MEMBER
  • 6 POSTS
It only goes up when the key is in the on position and the engine primes itself but the gauge just doesn't stop moving the oil pressure also stays high as well as the temperature gauge (which could just be that outta very hot outside) and won't go down until the key is turned off.
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Monday, July 1st, 2019 AT 2:49 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
It sounds like the cables and battery need to be replaced. Here is a guide to help walk you through the battery replacement:

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

and this may help as well:

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

Please run down these guides and report back.
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Tuesday, July 2nd, 2019 AT 1:40 PM

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