Question about Pontiac Sunfire

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Engine fan runs fine. When AC is turned on it blows 30amp fuse under hood for the engine fan. Cant figure out whats going on, i've traced the wires for the fan as well as the AC and could not find anything wrong. Its a 2004 with the 2.2L Ecotec motor.

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  • rayort04 Feb 15, 2009

    I have a 2001 pontiac gram dan the fan work but dont go on and car heat up we put sensor and it blows the fuse what do you think it can be?

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I had the same problem today with my sunfire 96 2.2L and it was the radiator fan that was draining too much amperes and the fuse blew up 3 seconds or less after the fan was turning.... i just change the radiator fan motor and the fan and the fuse are ok!!!!

Posted on Sep 04, 2008

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Where is engine fan fuse on 1991 geo prizm?


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I have a 2005 cavilier..it keeps blowing the main 30amp fuse when the ac is turned on..any help


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Well the code is for the circuit - the computer commands the relay to turn the fan on and it doesn't happen.
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1 Answer

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On top of the battery under the hood, is a set of Green 30Amp fuses. These burn out the holder and a/c no longer works.

If so, by pass fuse with a replacement/repair '' in line fuse'' of 30 Amps from you local parts store.

Other reason fan not working is failed fan resistor under glove box near fan housing....although this is usually low speeds not working by HI does.

If you have the non electronic a/c system, the a/c rotary switch in the panel burns out often.

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