Headlights flickering and Dash lights

40

Asked by TammyTrailblazer02 Oct 29, 2019 at 11:50 AM about the 2002 Chevrolet Trailblazer LT 4WD

Question type: Maintenance & Repair

My 02 Chevy Trailblazer headlights and dash
lights flicker, if I turn on the dome lights, yup
they flicker. The battery is good, alternator
seems good.  Help. I've been at this for a
week.

1 Answer

11,575

I just went through 3 alternators on my own Trailblazer due to this. Kept getting bad brand new alternators.....diodes were shot. Will test good at autoparts stores, but indeed bad, regardless of what they say.

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