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pearlm30

91 Loyale overheat only with AC on???

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When I don't use the AC, the temp gauge is about 1/3, with AC, it shoots up to Red.

Anyone please help

Thanks

91 loyale wagon 4wd 5 speed with 160,xxx miles

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When it idles with AC on, it soon gets up to red pretty fast( does the fan suppose to come on? I did not hear any fan), if I drive the car a little on highway, the temp will come down a little, but still in upper range.

Thanks again

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The fan should be coming on. Probably a bad thermo switch. It's common on our cars. I gotta go , but someone else will be with you shortly.:)

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