2010 Mustang gt over heating in texas - Ford Mustang Forum
 
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post #1 of 4 (permalink) Old 07-13-2010 Thread Starter
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2010 Mustang gt over heating in texas

I live in Houston and as I was driving to look at a job I noticed my A/C started to get hot. At first I thought my compressor was going out and then I noticed my engine temp. was pegged. After turning on the heater and running the fan on high while it was 98 degrees outside I finally made it home so I could try to figure out what was going on. I thought maybe the water pump or thermostat was out and then I noticed the radiator fan was not working. I checked the fuses and the relays but they are all ok. Any ideas?

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post #2 of 4 (permalink) Old 07-13-2010
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Such a simple circuit, not a whole lot to go wrong. Possibly a bad connection or fried fan motor. Did you look at the wire harnesses and ground to make sure everything was plugged in ok? I recall one member who had forgot to plug the harness back together after doing some engine work. I have a 91 Taurus that fried the fan motor during a smog test. If you have an ohmmeter you can check for continuity through the motor, it should be a real low impedance. The fan blade should also turn freely (not locked) when not powered (just don't loose a finger checking that).

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post #3 of 4 (permalink) Old 07-13-2010 Thread Starter
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I made sure all of the connections are good. It has been a while since I have messed with the fan unit itself. It was running fine until today. I need to see if the fan is froze.
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post #4 of 4 (permalink) Old 07-14-2010
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There is a cooling fan resistor on the fan shroud where the electrical harness plugs in. They've been know to fail.

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