Quote:
Originally Posted by bhw33191
A few months ago i upgraded to the "extra cool" thermostat (160 degrees i think) thinking it would make my engine run cooler, and it does during normal driving conditions. The problem is, if i'm on the highway in traffic the temp creeps up around 200 and doesnt go below 190, and on hot days if i have the AC on the temp goes up even more! I just like the piece of mind having some buffer room before the overheat or "caution" temperature you know?
The question is , could the thermostat be allowing so much coolant to flow through the radiator that it doesnt get a chance to cool it down? If thats the case then i'll replace it with something like a 180 degree therm.
I just want my car to be reliable because i'm going off to college soon.
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the thermostat will regulate the temp only if the coolant system is working correctly. if you get temps above the thermostat rating of more than 15 deg this tells me you have a problem. if at slow speeds the temp creaps above 180 in YOUR case then this would be most likely the fan clutch , or the radiator is corroded/too small. with the 350 I would use the 3 core radiator.