2001 Pontiac Grand Am Heat gage not working

2001 PONTIAC GRAND AM
75,000 MILES • 6 CYL • FWD • AUTOMATIC
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STINGER57
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  • 1 POST
The temperature gage doesnt move when engine warms up although there is good heat coming out of heater when turned on. Also the radiator fans go on when engine is still cold. Can the temp sending unit be bad?
Nov 29, 2008 at 2:57 PM
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MMPRINCE4000
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  • 8,548 POSTS
Temp sending sensor, coolant temp. sensor and possibility the fan switch. Also the gauge itself could be bad.

Best thing to do is to have the car scanned in live data mode to observe the temp. the PCM is showing.
Dec 1, 2008 at 9:09 AM
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VFULLER
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  • 1 POST
I have had the same problems. Replaced sensor and it worked for a week. Just finished replacing the thermostat and works like a charm.
Dec 16, 2008 at 12:56 PM
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