2000 buick lesabre.

10

Asked by May 31, 2015 at 05:58 PM about the 2000 Buick LeSabre Limited

Question type: Maintenance & Repair

Check engine light is on and the error code says the ignition control module is getting high/low voltage.I have tested the ICM and it's fine. What could cause this?

6 Answers

62,895

What's the trouble code (P----)? -Jim

10

I don't remember the code number, had them read it at autozone. Their computer said it was high/low voltage for the ignition control module though. Also: The symptoms are that it will turn off sometimes when you stop. Not often, maybe once or twice a week it will happen. Other than the random turn offs it runs perfectly, idles nice and runs well. Don't know if that info helps any.

1 out of 1 people think this is helpful.
3,425

Hello, Regardless of that code, and what they told you... You are describing the most common GM shutdown/no-start condition every on all those Buicks...Bad Crank Sensor. When they reach the end of their life, and get hot,...they quit. In the early years, circa mid to late 80's they were dead for good. They improved them enough that they will do as you describe for a while before they give it up. Look for any oil/grease/dirt at the connector, (remove right wheel, gain access to front of crank that way), make that connection is clean, and the sensor and bracket are stationary. However, the classic case for an HEI module will do the same, but one won't usually crank back up. (The one they referred to as various voltages) Hope this Helps, AskTrannyMan

2 out of 2 people think this is helpful.
Best Answer
10

I'm going to replace the crank sensor tomorrow, I'll report back if it fixes it or not.

10

I replace the crank sensor, and now the car just won't start period. :(

10

I had put the crank back in incorrectly, works now. :D

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