No crank no start issue

Tiny
SNEDWARDS38
  • MEMBER
  • 1991 BUICK SKYLARK
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
Have the car listed above that has a very high idle. I have replaced all sensors just had a tune up. Now it will not start wont even turn over.
Friday, April 2nd, 2021 AT 1:49 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,254 POSTS
Hi,

It could be a few different things. First, see if it will start if you place it in neutral.

If that doesn't change things, make sure the battery is fully charged and the terminals are clean and tight. Here are two links to help with that:

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

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

Okay, if the terminals are clean, tight, and the battery is good, then we need to check for power at the starter.

At the starter, you will find two primary wires. One will be a heavy gauge wire straight from the battery and will have 12v at all times. The other is purple and smaller. It should have 12v when the key is in the start position. Check for that. You will need a helper to perform that process.

Here is a link that explains how it is done:

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

Start with these things and let me know the results.

Take care,

Joe
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Friday, April 2nd, 2021 AT 9:46 PM

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