Question about 2001 Toyota Celica
Take off the radiator cap and open the radiator drain plug. Let it all drain out. Also open the block drain plug on the engine-it is down low on the engine block, just beneath the freeze plugs. Or if you don't open the block drain, about a quart of old coolant will remain in the engine. Not everyone drains it completely.
Now loosen the upper radiator hose clamp on the thermostat housing, and pull the hose off the housing. Two bolts hold the thermostat housing onto the block. Note how tight they are-when retightening these bolts, do not overtighten. Pull off the housing and remove and discard the old thermostat. Place new thermostat in proper position, and clean or scrape the old gasket material from the housing and the block mating surface-get it shiny clean again. Remove alll traces of old gasket or adhesive completely to avoid causing a leak. Refit new gasket and housing back over the thermostat, and tighten the two retaining bolts down evenly. The torque on them would be about 15 ft. lbs.-run them down finger tight, then a couple of turns with the wrench, and that's about it. If it leaks there, another turn on the bolts should stop it. Now fit the hose back on the housing and tighten the clamp. Close the radiator drain (and engine drain, if you opened it), and refill the radiator with a 50-50 mix of antifreeze and water, also the coolant recovery tank. Now turn heater control to high heat, start the car with the radiator cap off (to expel air) and run till normal operating temperature is reached. Now the thermostat should be open and the coolant level in the radiator may drop. Turn off the car and add coolant to the radiator as needed to top it up. Check for leaks at the thermostat housing, replace the rad. cap. I think you are done.
Posted on Nov 30, 2012
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Posted on Jan 02, 2017
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