car lights pulsing and power loss after car sits for a few days

Asked by byerkie Dec 17, 2014 at 01:49 PM about the 2006 Pontiac Grand Prix

Question type: Maintenance & Repair

My 2006 pontiac grand prix v6 is losing power hesitating and the lights are pulsing after it sits for a few days,it goes away for a month or so as long as were driving it but as soon as it sits for a week while im on my work rotation it always does this on my ride home once I drive for bout half an hr it starts with the headlights and interior lights pulsing and power loss ,

2 Answers
26,865

taver91 answered 10 years ago

Sounds like your alternator is going bad and not being able to keep up with the load on the electrical system. Have it checked under laod by a local shop. Most auto parts stores will do this for free.

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