Where is the thermostat located on a 2000 Grand Prix SE with a 3100 motor

Asked by Aug 22, 2012 at 02:19 PM about the Pontiac Grand Prix

Question type: Maintenance & Repair

2 Answers

75,795

Follow the top radiator hose back to the engine. Should be right there. The housing is secured with 2 bolts. Do NOT work on it while the engine is hot!! Squeeze that hose first to make sure the cooling system isn't under pressure!! Otherwise scalding hot coolant will BLOW out VIOLENTLY & you'll be injured!! Always work on a cooling system that has been sitting at least 1 hour. Then remember to squeeze that hose! HTH. -Jim

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This engine has a special coolant fill proceedure. there are 1 or more air bleed ports that need to be opened to bleed the air trapped in the system.

3 of 3 people found this helpful.

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