2002 Chevy trailblazer starter problem

10

Asked by Darian Jan 31, 2021 at 06:00 PM about the 2002 Chevrolet Trailblazer LTZ 4WD

Question type: Maintenance & Repair

I have a 2002 Chevy trailblazer and I put a
new battery, new starter, and also a new
alternator and it still want start up. Any
suggestions on what should I do next to get it
start up agin

3 Answers
27,530

oilyspill answered 3 years ago

Are you saying it cranks good, but, won't start? Make sure battery has a full charge and battery connections all good. Have helper crank it while you check for spark at the plugs-- proper fuel pressure and fuel injector pulse. Any applicable trouble codes? Plus, I wonder about your security system. Sometimes when battery voltage is lost, some modules may to relearn or be reprogrammed. Below is theft relearn. Now, if starter motor won't even crank, have to check starter motor wiring circuits.

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