Question about 1999 Pontiac Grand Am GT

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Fuse keeps blowing on 2004 Jeep Grand Cherokee

I have a 2004 Jeep Grand Cherokee. My heater/ac blower stopped working and at the same time my turn signals no longer work. Fuse #20 shown here http://www.wjjeeps.com/fuses.htm was blown. I replaced it, turned to key on and it immediately popped again.
According to these diagrams http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528004242b both those components (maybe some others too) use that fuse.
So I figure I have a short somewhere but where to start? I replace the normally 10A fuse with a 30A, turn on the key and the turn signals and blower work fine, but as expected I get smoke....I trace the smoke to a now small burn in a pink & white wire, which is compatible with what the above wiring diagram shows. As far as I can tell, the wire goes directly from the junction box to the blower control on the dash.
So is the blower control the culprit? Or where might I have a short if that's the case?
Any help would be greatly appreciated blower in 99 grand am stop blowing heat or air. when i turn on it stills melts the snow off of the back window but nothing comes out what is the problem

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Your fan seems to be drawing way too much current, common with fan motors of all kinds when they are going bad. It will still blow, but hot wires and blown fuses in the normal circuit indicate you have an excessive load in the circuit. Fan motors create this condition regularly, but are often ignored since they are "still blowing."

Here's a cheap, easy way to test my theory:
Try a new fuse, the proper amperage, but leave the blower motor unplugged at the blower itself. That will tell you in a few rides if the blower was the culprit. (Which it most likely is.) I bet your #20 fuse will stop blowing and no more smoking pink wires! Hope this helps. Remember, blower motors are cheap, traffic tickets and dash fires are not. The blower motor draw is the logical thing wrong with this picture. Good LUCK! TT

Posted on Jan 28, 2009

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