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chris_gt_74
04-27-2012, 04:47 PM
I need some help here. I just noticed last night when I started up my car that all the lights on my car were flickering. Not on and off but like fluttering. I affected the headlights, tail lights, and all interior lights. I can't get it to do it every time though. My battery is less than a few months old and has been checked for tightness and corrosion and my alternator has also been tested today showing 14v + all three times it was tested. The only abnormal thing I have noticed recently is my key will sometimes act like it doesn't want to turn so I pull it out and flip the key around and it turns just fine. I am kind of at a loss as to where to look for this issue and honestly I don't know how long it's been doing it. Any suggestions would be greatly appreciated.

Oh and to add, the car runs fine with no apparent power change. Also the radio does not cut out so I am not losing power. Oh and I also noticed that it's worse when the a/c blower was on high. Turning it off made it flicker less or not at all. Could it be a grounding issue or bcm? Likely unrelated but just in case, it was recently tuned with some help from a guy on the forum.

UndeadGods
04-27-2012, 08:43 PM
The only abnormal thing I have noticed recently is my key will sometimes act like it doesn't want to turn so I pull it out and flip the key around and it turns just fine.

That's a common problem with GM cars tho.


http://www.ehow.com/how_5058944_fix-flickering-vehicle-lights.html
Take a look at that.


And I've heard of alternators shooting out the correct voltage but still be bad, never seen it tho.
I deff seen peoples lights flickering wildly.

Check this out too.
http://answers.yahoo.com/question/index?qid=20061003170900AA6m6st


I would start out small, check battery if its good, check connection, check ground wire(s), n finally I'd get a junk alternator (or rebuild yours) n replace it to see if it fixes a problem.

Hope that helps.