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Keep Blowing Turn Signal Fuse

 
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overlordspock
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2005 Chevrolet Impala
1998 Chevrolet Silverado
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2009 Pontiac G8
2014 Chevrolet Impala


PostPosted: Tue Jul 05, 2011 7:34 pm    Post subject:  Keep Blowing Turn Signal Fuse Reply with quote

This is on my wife's '05 LS.

The other day, the driver's rear turn-signal bulb went out and I replaced it with a new bulb. About a day later, she drove home and told me that her turn signals didn't work anymore. I checked the fuse and, sure enough, it was blown. I put in a new fuse and everything seemed to work fine.

Today, she told me that her turn signals aren't working again. I checked the fuse and, again, it was blown. I put in another one and turned on the turn signal. Sure enough, after about three blinks, the fuse blew. I switched out another bulb (just in case), but the same thing happened again after that.

There certainly seems to be some sort of short going on here, but I have no idea where to look. Anyone have any ideas?

Thanks!

EDIT WITH ADDITIONAL INFO:

Some more experimentation on this has narrowed it down to be something with the left turn signal (which, incidentally, is the one which I replaced the bulb in the back). I can leave the right turn signal flashing as long as I want and the fuse is fine.

The left turn signal though will blow the fuse within three flashes. Also, I have noticed that the left front bulb is dim when it lights up, as is the light on the dash. I did pull the bulbs out of the back again and the front too to check the socket to see if there was any corrosion or something similar that might be causing a short. They both looked perfect.

Completely befuddled on this one. Sad

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Tmac08impala
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PostPosted: Thu Jul 14, 2011 3:18 pm    Post subject:   Reply with quote

Really check the wiring, look for poor grounding.
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VictoryRed09
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PostPosted: Thu Jul 14, 2011 4:14 pm    Post subject:   Reply with quote

If I read this right, the problem started right after the Bulb was replaced.

Try a different Blub ..
mass manufacturing some times produces bad product.
The blub may have a short in it.

or when you were changing the blub, you damged the wiring or the socket ( I believe you said you checked that. )
Different blub would be my first change.
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overlordspock
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Joined: Jul 22, 2007
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Location: Twin Cities, MN

2005 Chevrolet Impala
1998 Chevrolet Silverado
2008 Chevrolet Impala
2011 Chevrolet Malibu
2009 Pontiac G8
2014 Chevrolet Impala


PostPosted: Sun Aug 14, 2011 4:12 pm    Post subject:   Reply with quote

I just realized that I never followed up on this.

The problem is resolved. There was a crimped wire that had shorted across itself (fairly deep behind the tail-light).

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2009 Pontiac G8 GT - Sport Red Metallic, Kooks LTs w/ Cats, Corsa Catback, RotoFab CAI, HomeLink
2014 Impala 2LT - Black, No Mods
2008 Silverado LTZ Z71 - Black, Extended Cab, Spray-on Bedliner
2008 Impala SS - Precision Red, Magnaflow, Cold Air Inductions CAI, Overkill Tune, Front/Rear STBs w/ Don Rome Brackets SOLD
2005 Impala LS - Summit White, Front/Rear STBs w/ Don Rome Brackets, BBE Monte SS Cluster SOLD
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