changing the valve cover gasket will not fix an over heating problem u need to check out the cooling system. Radiator, water pump, hoses, belts
fan clutch?
Why dose my 232i overheating
have you checked the fan
dose the electric fan run if not check the relay if it runs check the water pump
brilliant, the thermostat is backwards
Not sure if by your question you mean the thermostat opens slow and the engine overheats or if you mean the engine takes a long time to warm up. If the engine is overheating, more than likely the thermostat is stuck in the closed position and needs to be replaced before engine damage is caused because of overheating. If the engine is taking a long time to warm up, the thermostat is probably stuck in the open position and has to be replaced so the engine can reach its normal operating temperature in a shorter time.
are the cooling fans coming on
Is your fan coming on?
My 2000 would overheat at idle; in park & slow traffic. Ran normal on the highway. I 1st replaced the fan relay everyone has been blogging about, engine still overheated. Next attempt for victory, I replaced the temp sensor switch; defeated again. I then replaced the thermostat & haven't had a overheating incident since.
Is you Geo Tracker overheating or the temperature is running almost hot then you need to change you thermostat
Blown head gastet, radiator leaking, thermostat needs to be replaced Blown head gastet, radiator leaking, thermostat needs to be replaced
had the same problem with a sibring,took to the garage,they replaced the thermostat and gasket and found a hairline crack in the thermostat housing they replaced the housing and everything was fine then