Author Topic: AC blowing a fuse (Read 3950 times)

dbgrubbs · « **on:** August 08, 2008, 08:10:26 PM »

Never had this problem before. The 7.5 amp fuse that controls the AC fan and all the gauges (except the speedo) keeps blowing. Usually when at idle with the AC on. Is this a sign that the resistor or the blower motor is failing? Anything else?

Jimmy Lewis · « **Reply #1 on:** August 08, 2008, 10:04:07 PM »

I have the exact same issue and I have yet to solve it. After some research I found that the reverse switch that runs up the through the shifter hole can get mangled and cause a short, and also that grounds on the back of the cluster may become loose. I checked both and it still blows fuse 10. I don't run AC and mine blow as soon as the car is started after putting it in, it even blew a spare 30 amp fuse I have. Anyone resolved such an issue?

DRtothE · « **Reply #2 on:** August 10, 2008, 12:09:03 AM »

when i bought my car, the A/C fuse was melted in its socket. Asked to dealer to jimmy rig it, and now i have a 60 fuse connected by two wires coming out from the bottom of my fuse box. A more professional fix one, but for now, it works with no problems.

Jimmy Lewis · « **Reply #3 on:** August 10, 2008, 12:43:36 AM »

I would prefer to fix it outright, but I will pick up some higher amperage fuses and see how it goes.

DRtothE · « **Reply #4 on:** August 10, 2008, 05:27:50 AM »

i forgot to mention, the reason you are burning out your fuses so often with the correct fuse, or even a high level fuse, could mean you have a short too. walk along you wiring for your best bet on find that, i wouldn't know where to start though.

dbgrubbs · « **Reply #5 on:** August 10, 2008, 06:31:19 AM »

I really watched what was going on with this yesterday. I turned off everything before I started the car. The AC and the blower fan were NOT on. Still blew a fuse. But, I believe I put it in reverse when the fuse blew. I read in another forum that the wires running with the shifter can get pinched and short out. I'll crawl under the car today and see if that's where the problem is.

dbgrubbs · « **Reply #6 on:** August 10, 2008, 12:12:56 PM »

Figured out my problem. There's a wire retainer that holds the reverse switch wiring up to the shifter rods. That plastic retainer broke and allowed the wiring to fall. Eventually the guibo wore thru the wire and was "occasionally" grounding out. Of course this only happened when I put the car in reverse.

Fixed the wire and used a wire tie to hold it up and all is better now.

Jimmy Lewis · « **Reply #7 on:** August 10, 2008, 07:50:52 PM »

Awesome man, that sounds like my issue exactly as well, I probably neglected to put that wire back in the retainer when I did my clutch swap. I'm glad you figured it out man, for yours and my sake, haha.

Jimmy Lewis · « **Reply #8 on:** August 10, 2008, 08:01:28 PM »

Fixed it! That was easy, it was just worn through where it goes through the rubber boot around the shifter. It was pinched from not putting it where it needs to be during the shifter rebuild, but its money now!