Quote:
Originally Posted by dorlow
I have a 2004 Impala LS with a 3.8. A few years back, I was getting sick of the car not getting warm in the winter, so I went to the auto store and bought a thermostat that had a higher temp. This winter, it seems to be worse. My car's temp gauge never gets much past 1/4 the way up. It blows luke warm air. I stopped at Autozone today asking if they sold a thermostat that was a higher temp and they said no.
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when you install the themostat make sure it is in the bore tight and no coolant can go around the mounting bore on the intake. there should be a tight fitting gasket on the outer edge.
purge out / flush the heater core /// remove the hoses at the engine ..