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Old 11-20-2006, 06:51   #1 (permalink)
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confused Blower fan intermittently working

Any advice would be appreciated. I've had my 2002 Crown Vic LX Sport (60k mi) in the shop 4 times to get a problem with the blower motor corrected. No luck yet. The problem is that it works sporadically - typically doesn't work on the coldest days so getting to work can be an adventure. Initially, the mechanic replaced the blower motor and fan worked fine for about 4 months - then stopped again. Next time, the mechanic again replaced the blower motor again and reportedly tightened the electrical connection. Worked perfect for about 8 months. The third time in the shop, the mechanic wired the blower directly to the battery and it worked fine so he knew it wasn't the blower motor. He checked electrical continuity through the dash and said it was okay. He thought there could be a loose ground wire along the main branch of wires??? While it was in the shop, the fan started working again so he couldn't diagnose a problem. The fan has worked for about 2 weeks, but went out this morning. I'm not the most mechanically inclined, so I need your help on this. Mechanic is stumped and so am I. Any thoughts would be GREATLY appreciated.

Dege
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Old 11-20-2006, 17:35   #2 (permalink)
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Re: Blower fan intermittently working

Sounds like the blower resistor, or a bad connection at the resistor. You could try 'wiggling' the wires on the resistor and see if it comes on.
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Old 11-20-2006, 22:20   #3 (permalink)
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Re: Blower fan intermittently working

Yep,the resistor is most likely your problem. I've been through that mess too!
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Old 11-21-2006, 05:26   #4 (permalink)
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Re: Blower fan intermittently working

Thanks for your quick response on this issue fonz and ryoder. It was 22 degrees this morning so needless to say, i've got to get this fixed quick!
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Old 12-09-2007, 13:29   #5 (permalink)
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Re: Blower fan intermittently working

Where is the resistor located, at least on a 2000 Grand Marquis? I am having similar problems.

Thanks!
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