2002 chevy turns over but no spark

Asked by GuruBHZM4 Jan 02, 2019 at 02:48 PM about the 2002 Chevrolet Express

Question type: Maintenance & Repair

I have changed the coil, ignition module, cam sensor, crank sensor, battery. It
cranks but has no spark

4 Answers
26,810

oilyspill answered 5 years ago

Did you check primary voltage to ignition coil and icm? Pink wire goes hot with key on, fuse protected. Any applicable trouble codes? Does the dist rotor turn when you crank it? Coil wire ok?

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Gary answered 9 months ago

Check ICM ignition control module there should be 5 volts coming in check the ground coming in and going out if your ignition coil does not have enough voltage there is not a good ground or your ignition control module may be bad it most likely is a bad ground if it fluctuates in voltage as you crank it

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