Radiator Cooling Fan is ALWAYS on - Mustang Evolution

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Old 01-06-2014, 02:32 AM   #1
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Radiator Cooling Fan is ALWAYS on

We recently bought a used 2004 ford mustang v6 3.8 and when I turn on the vehicle, the radiator fan turns on also, almost immediatly. Is thsi normal? Does it affect anything? How do I fix it?
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Old 01-06-2014, 06:03 AM   #2
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No, it's not normal. Someone here will be able to help trouble shoot more than me.
-The CCRM has (4) relays. Ignition/PCM, low speed fan, high speed fan, and AC clutch.
-Hopefully someone chimes in soon on how to start trouble shooting the electrical system.
Good Luck.
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Old 01-06-2014, 09:53 AM   #3
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I'm not sure if it is the problem but your CCRM might be going out, mine failed on me. You can buy it at a local parts store, I believe they list it under Body Control Module. It's located in you passenger fender well. It cost a little over $100
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Old 01-06-2014, 12:54 PM   #4
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Thanks, Im gonna go to AutoZone and buy it there. Is that easy to install, or do I have to take it to a mechanic?

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Old 01-06-2014, 12:57 PM   #5
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It's really simple, take your wheel off and the splash guard in the passenger fender well, then you will see it up in there and it's bolted on to hold it, disconnect the negative terminal of your battery. Then just unplug the old one, plug the new one, put back together and start car up
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Old 01-06-2014, 01:46 PM   #6
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Do you also know where the
relays are located?

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Old 01-06-2014, 03:24 PM   #7
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Maybe the person u bought it from jumped the fans to be on at all time when the ignition is on. The fan relays are in the ccrm which is inside the fender for the passenger side. Could be a relay shorted but i would start looking for some shady mechanic work just my 2ยข. Also if it was rigged up like that may wanna look into a bigger problem i.e overheating issue.
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Old 01-11-2014, 10:30 AM   #8
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Excellent point.
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