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Discussion Starter #1
Hey,

So I have a 2007 Cobalt LS, and the last week and a half my Park Lamp Fuse keeps blowing. I have tried every other fuse and they are all fine, I've tried every bulb on the circuit and they are fine. I am out of ideas. I googled and I haven't found any solutions that I haven't tried. Outside of taking it to a dealership so they can rip apart my car, does anyone have suggestions as to where to look?

Thanks!

Justyn
 

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License plate bulb socket is Usually the culprit. Have you checked that one?
 

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Discussion Starter #3
I didn't, since I didn't think it was attached to the park lamp fuse. I will check in the am. What should I be looking for?

On a side note, why does it seem like everything is tied into the Park Lamp fuse???

J
 

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Just going on a limb here but do you happen to be running LED bulbs with a resistor? If so you may be running too large of one that is drawing too much power.

If not disregard my post.
 

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Look for a badly corroded socket. If you live wear road salt is used in winter this socket is not very well protected at all.

For your last question... You can't have a fuse for each bulb, so for safety since you can't see the back of your car when you are driving they put the cluster bulbs on the same fuse. This way when your instrument panel is not lit you know there is a problem out back to take care of, otherwise you would have to wait for the police to stop you or even worse until you get rear ended.
 

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Discussion Starter #6
Just going on a limb here but do you happen to be running LED bulbs with a resistor? If so you may be running too large of one that is drawing too much power.

If not disregard my post.
I don't. I've heard a lot of headaches can accompany those things.

---------- Post added at 09:58 PM ---------- Previous post was at 09:57 PM ----------

For your last question... You can't have a fuse for each bulb, so for safety since you can't see the back of your car when you are driving they put the cluster bulbs on the same fuse. This way when your instrument panel is not lit you know there is a problem out back to take care of, otherwise you would have to wait for the police to stop you or even worse until you get rear ended.
Good point.

Thanks for the suggestion! I will post here whether it works or not.
 

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Discussion Starter #7 (Edited)
Update...

So I took apart all my lights (housings etc) and none of the wires nor bulbs were even remotely odd looking. They were all fine.

I sprayed water on all the connections to see if it could be that, no luck.

The fuse blew 3 times yesterday and today hasn't blown a single one :huh:

I've tested all the circuits on that relay and they all appear to be fine. Granted, I can't get at any of the ones that are hidden severely...

Any more suggestions? I am out of them :(

Justyn

PS I've tried the switches and they all work fine. Seems the fuses blow at night? But I can't 100% confirm as it happened once yesterday in the middle of the day.
 
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