Question about 1997 Pontiac Sunfire

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I replaced heat sensor on engine and fan wont come on but if i unplug sensor it runs and low coolant light comes on but its not low what is the problem this is a 1997 sunfire

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  • robert pergola May 11, 2010

    you have a coolant switch and relay. did you change the switch for the fan or computor?

  • Bruce Bracey
    Bruce Bracey May 11, 2010

    The cooling fan should not come on unless you have the A/C running on a warm day or the engine temperature is above 210 deg F.

    Is the engine over heating?

    Let me know.

    Regards,

  • Richard Scordino May 11, 2010

    Don't know that system real well but from what you've said, its likely that you changed the wrong sensor. The one you changed was probably the low coolant sensor not the temp sensor!

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Are There two sensors??, sometimes there is one for fan and computer, and there is another just for the gauge.

Posted on Mar 12, 2009

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