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I want to say thanks in advance for anyone that responds. Y’all got me through my last problem on a different vehicle, so I’m hoping y’all can do it again. Here is the situation. I live in Florida. It’s hot now. 2 days ago my a/c quit working. I dealt the first day. So today I start checking stuff out. I turn on the fan and air comes out. It’s hot air but it’s working. Probably not a blower motor issue. I turn on the a/c button and nothing. The same with the recirculate button. I open the hood and watch a few minutes and I notice the condenser fan never kicks in. Being somewhat savy with cars I think maybe it’s low on freon. I try to add some but, nothing. I’m only use the “hack” system with the gauge and hose you get with the freon. (r-134a) I’m hoping at this point it’s just a fuse. I pull the blower motor fuse to get to the a/c fuse. It’s blown. I know fuses don’t just normally blow but I replace anyway. I turn the blower and a/c on and voila, power. I add freon and cold air again. I drive around 30 minutes patting myself on the back thinking I’ve done a great job and how thinking finally, a cheap fix. It works until I hit rail road tracks. It quits again. I’m not sure if it just a coincidence or not. I get home repeat the fuse thing. I turn on just the fan and blown fuse. I heard it pop! I get out and try again with the fan on, not the a/c button on just the fan on and again same result. I find a ground wire that the side has been rubbing against the fan housing and it’s bare. I zip tie it up and use some wire shrink and voila, no more bare wire. I turn everything off and replace fan fuse again. I get my daughter to turn on fan and POW, busted fuse. I don’t know where else to look for the problem. I’ve scanned all other wires and no bare wires or broke wires connected to the fan motor. Please help. I’m thinking it’s connected to the blower motor, since it only pops when I turn the fan on. But, the fan inside is still working.
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Try disconnecting the condenser cooling fan and install another fuse. You can drive the car with no fan as long as you’re moving. If the fuse blows plug in the fan and do the same thing only with the compressor clutch coil disconnected.
I think you will find that either one or the other is the problem. Could also be either relay or a wiring issue also but start with the simple things first..
Here’s a WAG based on events for my 1990 Camry.
The compressor’s clutch bearing went bad allowing the clutch pulley components to rub through the electromagnetic coils on the clutch and create a fuse blowing short. The “factory trained” Toyota mechanic used the wrong puller and cracked the compressor which now also had to be replaced, as well as the clutch. As usual usual the customer “ate it”!
So take off your compressor belt and check its pulley for play. Engine not running of course.
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