If your car is running hotter than normal, then this is mostly a result of the wearing out thermostat.
Here are steps to replace a car's thermostat.
Follow the directions.
Things Needed -New Thermostat -Gasket -Gasket sealant -Emery Cloth -Putty knife or scraper -Spray lubricant -Pliers -Flat-blade screwdriver -Ratchet set or open-ended wrench set -Workmen's gloves Directions Step 1: Visit a local auto dealer and buy a new good thermostat, gasket sealant and gasket for the specific model of your car.
Step 2: The radiator cap has to be removed.
Before removing, a thick rag has to be placed over the radiator cap and start turning it slowly while listening to the pressure being released.
When the hissing stops, completely remove the cap! Step 3: Find the two inch black hose exceeding from the top of the radiator.
The hose will be clamped on the thermostat cover ending somewhere on top of the engine.
The thermostat cover has two bolts on each side.
Step 4: The hose has to be removed using pliers or screwdriver, the clamp needs to be pulled off.
Step 5: The hose has to be twisted for loosening it from thermostat cover.
If the hose is hard to loosen then use spray lubricant.
Some coolant will pour out from the hose when it is taken off.
Step 6: Use an appropriate sized open-ended wrench or ratchet socket to loosen the two bolts on the thermostat cover.
Remove the thermostat by lifting the cover.
Step 7: Remove the old gasket from the thermostat cover and cover base by using a putty knife or scraper.
Step 8: Sand any of the left over traces of the gasket with emery cloth.
Ensure that the cover base and cover are clean and smooth or the cover will leak.
Step 9: Use the spring mechanism to drop down the new thermostat in the engine.
There will be a narrow buried area at the point where the top of the thermostat fits.
Step 10: The gasket sealant has to be spread on the thermostat's cover that makes contact with the engine and the cover base.
The gasket has to be placed on the cover base and ensure that the bolt holes are lined up.
Step 11: The thermostat cover can be replaced now and the bolts can be screwed properly.
Step 12: The radiator hose has to be replaced.
Step 13: Before starting the engine, allow the gasket sealant to dry.
Consult the sealant package and check how long the sealant takes to dry.
Step 14: When the sealant has dried, start and run the engine until the engine reaches its normal temperature.
Inspect the hose and thermostat cover and ensure that there are no leakages.
Step 15: Finally, check the coolant level and refill if necessary.
Tips & Precautions -The radiator cap should be NEVER opened when the engine is hot.
-Any spilled coolant should be immediately cleaned.
It is dangerous especially for cats.
-The thermostat bolts can break if they are forced.
If the bolts are hard to remove and are rusted, then bolt-freeing lubricant can be used for loosening them.
-Only the proper thermostat and gasket should be purchased.
In case they don't properly fit, exchange it from the auto store where you got it.
The size of the gasket will always be larger than the cover and will be overlapping it.
Here are steps to replace a car's thermostat.
Follow the directions.
Things Needed -New Thermostat -Gasket -Gasket sealant -Emery Cloth -Putty knife or scraper -Spray lubricant -Pliers -Flat-blade screwdriver -Ratchet set or open-ended wrench set -Workmen's gloves Directions Step 1: Visit a local auto dealer and buy a new good thermostat, gasket sealant and gasket for the specific model of your car.
Step 2: The radiator cap has to be removed.
Before removing, a thick rag has to be placed over the radiator cap and start turning it slowly while listening to the pressure being released.
When the hissing stops, completely remove the cap! Step 3: Find the two inch black hose exceeding from the top of the radiator.
The hose will be clamped on the thermostat cover ending somewhere on top of the engine.
The thermostat cover has two bolts on each side.
Step 4: The hose has to be removed using pliers or screwdriver, the clamp needs to be pulled off.
Step 5: The hose has to be twisted for loosening it from thermostat cover.
If the hose is hard to loosen then use spray lubricant.
Some coolant will pour out from the hose when it is taken off.
Step 6: Use an appropriate sized open-ended wrench or ratchet socket to loosen the two bolts on the thermostat cover.
Remove the thermostat by lifting the cover.
Step 7: Remove the old gasket from the thermostat cover and cover base by using a putty knife or scraper.
Step 8: Sand any of the left over traces of the gasket with emery cloth.
Ensure that the cover base and cover are clean and smooth or the cover will leak.
Step 9: Use the spring mechanism to drop down the new thermostat in the engine.
There will be a narrow buried area at the point where the top of the thermostat fits.
Step 10: The gasket sealant has to be spread on the thermostat's cover that makes contact with the engine and the cover base.
The gasket has to be placed on the cover base and ensure that the bolt holes are lined up.
Step 11: The thermostat cover can be replaced now and the bolts can be screwed properly.
Step 12: The radiator hose has to be replaced.
Step 13: Before starting the engine, allow the gasket sealant to dry.
Consult the sealant package and check how long the sealant takes to dry.
Step 14: When the sealant has dried, start and run the engine until the engine reaches its normal temperature.
Inspect the hose and thermostat cover and ensure that there are no leakages.
Step 15: Finally, check the coolant level and refill if necessary.
Tips & Precautions -The radiator cap should be NEVER opened when the engine is hot.
-Any spilled coolant should be immediately cleaned.
It is dangerous especially for cats.
-The thermostat bolts can break if they are forced.
If the bolts are hard to remove and are rusted, then bolt-freeing lubricant can be used for loosening them.
-Only the proper thermostat and gasket should be purchased.
In case they don't properly fit, exchange it from the auto store where you got it.
The size of the gasket will always be larger than the cover and will be overlapping it.
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