How to Replace a Thermostat
for all vehicles ( View guide for your vehicle 
)
)
Moderate
1.4 to 2.1 hours to fix for the average DIY'er
Parts needed:
Suggest Parts
Thermostat Gasket
Thermostat
Tools needed:
Suggest Tools
Estimated Costs:
DIY Costs
Est. $27.08 parts only Shop Costs
Est. $134.73 in parts and labor
Est. $27.08 parts only Shop Costs
Est. $134.73 in parts and labor
Costs are based on averages for all vehicles.
Guide Steps
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Remove the vehicle’s radiator cap and use a radiator pressure tester to check for leaks. edit step -
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Drain out some of the engine coolant in the radiator so the coolant level is below the thermostat housing to prevent leaking when replacing the thermostat. edit step -
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Clean the mounting surfaces. Install the new thermostat as it was removed and always use a new thermostat gasket. edit step -
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Reinstall thermostat housing and tighten mounting bolts evenly. If applicable, reconnect the upper radiator hose. edit step -
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Start the vehicle with the radiator cap off and allow the engine to run for several minutes. This allows the air bubbles to escape the cooling system. edit step -
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Run the engine until up to normal operating temperature. Remember to keep an eye on the temperature gauge to prevent overheating. edit step -
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