Firing issues

Asked by Bailey9844 May 22, 2016 at 08:09 PM about the 2000 Pontiac Bonneville SE

Question type: General

My wife's car is a 2000 Pontiac Bonneville 3800
a/c compressor locked up fixed that then it
wouldn't start. No fire i put a crank sensor on
and cam shaft sensor now it start runs for lil bit
then loses fire....I'm at a loss

1 Answer

42,415

First to check is to make sure the ICM is getting power and ground. Then, you'll make sure that the crank sensor is also getting power. The next step is to test the crank sensor signals. Remember, there are two signals involved (in starting the Engine) and that are produced by the same crank sensor. From the results you get you'll be able to pinpoint the problem to the ignition control module or...The crank sensor.Or completely eliminate these as the cause of the No Start condition. IMPORTANT- To perform all of the tests the Battery MUST be in a fully charged condition.

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