Place a drain pan under the radiator drain and drain the cooling system to just below the thermostat level. Close the drain.
Remove the upper radiator hose from the thermostat housing, then remove the housing.
Remove the thermostat and discard the gasket.
Thermostat installation detail—3.0L engineThermostat installation detail—3.3L and 3.8L engines
Clean the housing mating surfaces.
Dip the new gasket in clean water and place it on the water box surface.
Center the thermostat on the gasket, in the water box.
Remove the radiator hose from the waterneck by looseninWhere is the thermostat located? - 0900c15280042103.jpg .. . . then loosen and remove the waterneck housing retaining bolts
Make certain the bolt threads are clean. Threaded bolt holes exposed to coolant are subject to corrosion and should be cleaned with a small wire brush or correct size thread-cutting tap. Install the housing, making sure the thermostat is still in the recess, and tighten the retaining bolts to 105 inch lbs. (12 Nm) for 3.0L engine or to 21 ft. lbs. (28 Nm) for 3.3L and 3.8L engines. Reconnect the upper radiator hose and tighten the hose clamp.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Yes a bad thermostat can cause and engine to get hot or overheat. That would be a good place to start. The thermostat is located in the housing where the upper radiator hose attaches to the engine. Make sure you replace the gasket also.
check the coolant temperature sensor. the sensor is located right next to the thermostat housing. it has only two wires, disconnect plug. using a ohmeter check the resistance between the two terminals on top of the sensor when cold. resistance should be 7,000-- 13,000 ohms. check again when the engine has wormed up to about 200 degrees. the resistance should be 700--1,000 ohms. if there is not a definite change in the resistance, then remove and test in a pan of hot water. if the test is good, check the wiring harness from the sensor to the pcm.
The o2 sensors are located on the exhaust system.The upstream in on the rear exhaust manifold and the down stream is in front of the catalytic converter.Usually when they are bad they will make the check engine like go on.Make sure the air filter is clean,tires at correct inflation,alignment is to specs.If the vehicles pulls to one side or the other or steering wheel is not straight when driving down a straight stretch of road.Also tires are wearing normal.Use cruise control where ever on highway.If you let your vehicle warm up in winter.This also uses gas.Hope this helps.Good luck.