Question about 1992 Oldsmobile Eighty Eight

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Cooling fan doesn't come on when tem gauge goes up. have 2 turn on defrost. why?

When temp gauge goes up the fan want come on. have 2 turn on defrost for the fan 2 come on. trying 2 figure out why?

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  • yadayada
    yadayada May 11, 2010

    The engine cooling fan on this car doesn't come on until the engine temp reaches 225-230 degrees Fahrenheit, that is well over towards (about 2/3 of gauge scale) the hot zone of the temp gauge, do u still think you have a problem? when u turn on the defrost or ac the fan runs becuause the ac compressor is turned on in both positions, ac and defrost, when the ac is on the engine fan runs

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Sounds like you have a cooling fan temp turn on sensor fault. It works on DEF because the A/C compressor kicks on . The fans will probably also work when the A/C is turned on. Hope this helps

Posted on May 27, 2009

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