Question about 2001 Pontiac Grand Am SE

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Temperature gauge this afternoon leaving from work my service engine soon light came on and i noticed my temp gauge stayed at 100 the whole way home. It usualy stays at about 200 is the thermostat the prob

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The thermostat could be stuck wide open, but that wouldn't cause the vehicle to run at such a low temperature, my bet would be on the temperature sensor. When replacing it, be sure to get the one for the dash, your enging has two temperature sensors on it, one for the guage on the dash, and one for the computer so it can monitor and adjust air/fuel ratio in accordance. You will need the temperature sensor for the dash.

Posted on Aug 05, 2008

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Posted on Jan 02, 2017

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