2001 Kia Optima Repair Question
2001 Kia Optima overheating
i reciently had my oil changed and the car was running fine. i was driving down the road and my temp went from normal to hot in seconds i have look for leaks and cracks and found nothing but it is still overheating and i dont know what it is
Find the thermostat and replace it for a start-that don't work do below
Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.
Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.
If the block and pressure test passes check the following: Thermostat,Pressure test the Rad. cap,Clogged radiator,Fan clutch,Radiator electrical fan,collaspe hoses,water pump.
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