pulsing headlights

Asked by GuruXMJDP Nov 22, 2018 at 01:18 PM about the 2007 Chevrolet Tahoe LT 4WD

Question type: Maintenance & Repair

What can cause pulsing headlights?

1 Answer
9,530

Mike answered 5 years ago

Tha alternator is the mosr common cause, so have the charging system tested, it won't set a code because it's staying in range the next thing would be a bad ground wire for the lites probably located on the radiator support. I hope this helps

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