Question about 2000 Pontiac Sunfire

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Problem with dash gauges and AC

Everytime my 2000 Sunfire is in drive, ALL of the dash warning lights come on. The car tends to run hot, so when I turn on the AC, all of the gauges (speed, rpm's, gas, temp) all drop to the bottom, and when this happens, the AC won't blow cold! I don't know what to do, I've checked all of the fuses. Could this be the compressor going out?? Or is my car just have a crazy electrical problem?? Any help would be appreciated!

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  • jenlafata Jun 19, 2009

    I had the battery and alternator recently tested, both are good. The head gasket was blown on the car. I just had that replaced, so no more running hot, but now none of the gauges work, all warning lights come on, the head lights are dim, and the radio just comes on and off. What could this be??

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I had this happen to me, and I was amazed to find out that the battery caused the probblem.It had two dead cells and it was only a week old.

Posted on May 27, 2009

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Posted on Jan 02, 2017

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