Question about 2001 Oldsmobile Silhouette
After running the vehicle for a while check the temperature of the fluid in your reservoir tank. If it is cooler than the temp in the radiator(this should be extremely hot and the res tank should only be warm) then it is most likely your thermostat sticking shut. It's a pain to change but luckily the part only costs around $10.
Posted on Dec 30, 2008
Just fixed this problem myself.
In addition to the above description, my service engine light came on about a week after the gauge stopped working.
Took it to Auto Zone and had them do an error code scan, this is a free service of AutoZone.
Code P0126 - Coolant Temp is always low.
3 possible causes
1) Check Engione Coolant
2) Thermostat defective
3) ECT sensor defective.
I added approx two pints of coolant. The Check Engine Soon light went out and the temp gauge started working again.
Posted on Dec 28, 2008
This is one of three posabilitys or it could be the guage or the wirring to the guage
Posted on Oct 19, 2008
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