Question about 1992 Pontiac Firebird

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My headlights,power mirrors, and trunk pulldown dont work intermittently . sometimes they will work after hitting a bump. The other day I drove through a water puddle and they all started working fine

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This is a hard one because you can't fix whats not broke. But on this intermittent problem the first place you want to look is the grounds under the hood. This includes the negative battery cable. Be sure to check both ends . Check as many as you can find, you are looking for loose or dirty connections. You need to check this because hitting bumps can change weather or not they work. This can be time consuming and boring but it has to be done. This is why mechanics that do electrical work charge so much its for time and what they know to save them selves time to find the problem and repair them. Good luck.

Posted on Sep 26, 2009

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all the best

Happy to help
Have a nice day!

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