Question about 2000 Pontiac Grand Am GT
My car has been running hot, but not over heating. When i first got my car, it always ran at a constant 170F. Then one day the gauge rose normally to 170 then kept going to 190/200+ and if the car sat running, it would work its way up to 230ish. If I drove the car around, the temperature would slowly go down 30 to 80 degrees (depending on the ambient temperature). After about 6 months, I changed the coolant which only helped slow the temperature increase, but it would still be a repeat. A few days ago I changed the thermostat (after about a year since the temperature difference happened), I managed to get the air out of the system that I'm aware of, but now it heats up faster (5-10 minutes driving) and holds at 200F to 210. When I drive around, there's little to no effect on the engine temperature. I've tested the old thermostat in boiling water and it opens fine. I changed my oil a few days ago and the oil looked fine. I've given the upper hose a good squeeze and there is pressure when its hot. The heater works fine.
-2000 Pontiac Grand Am SE V6 3400
-New coolant: Prestone (the mix with any color kind). I mixed the water in.
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Posted on Jan 02, 2017
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