2001 Pontiac Grand Prix "open stuck thermostat" Questions

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stuck open. Normally, the thermostat remains closed when starting cold, confining coolant to the engine block and cylinder head until it heats up. Once the coolant in the block is warm (usually within

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Question about Pontiac Grand Prix

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...stuck open. Or opening to soon not allowing the car to reach normal operating temperature. I would start by replacing the thermostat. Clearing the code and running a drive cycle and see if the code ...

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...stuck open , but your engine temp guage would show that the engine is running cooler than usual. Could be a partially blocked heater core , low flow of hot coolant makes for cool air. One suggestion ...

...warm up the cars cabin More than likely you have a thermostat that is stuck open. Also one would want to check the cap that goes to your coolant resorvoir. I would lean more to a defective

Question about Pontiac Grand Prix

1 Answer

...stuck in the open position and is not moderating the coolant temperature to where it should be. Replace the thermostat and coolant if it's older then 5 years or has over 150,000 miles. Good luck and ...

Question about Pontiac Grand Prix

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...STUCK OPEN WILL EFFECT GAS MILEAGE AND CAUSE POOR OR NO HEAT CONDITIONS.THERMOSTAT NOT A HARD JOB TO FIX.ALL YOU NEED TO DO IS DRAIN OUT SOME OF THE COOLANT IN A DRAIN PAN.DRAIN COOLANT LEVEL BELOW ...

Question about Pontiac Grand Prix

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...a car that new your core should still be good. I would pay a dealer to take a look at it there could be some common problem with the flap that lets the cool air being stuck in the full open

...thermostat as it stuck closed and the engine overheated. Your coolant could indeed be low. Double check the level. Often when the cooling system appears to be full, it drops when the thermostat opens ...

Question about Pontiac Grand Prix

1 Answer

...air. according to the temp gauge the engine is running on the cold side as well. think a thermostat will be the fix? Check your coolant level, if it is ok, it is most likely the thermostat stuck

Question about Pontiac Grand Prix

1 Answer

...hoses checked out. Normally when a thermostat is stuck closed...all you get is heat. And when it is stuck open, you get no heat. Unusual that you are not getting heat from a motor that is

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