4.3L Engine
The thermostat is located between the water outlet and a housing built into the intake manifold.
1. Disconnect the negative battery cable. 2. Remove the air inlet duct. 3. Drain the cooling system to a level below the thermostat. 4. Remove the thermostat outlet-to-engine retainers (usually either 2 bolts or 1 bolt and 1 stud), then remove outlet from the intake manifold. 5. Remove the thermostat from the housing, noting the orientation for installation purposes.
To install: 6. Carefully clean the all traces of the old gasket or sealer from the housing and outlet. 7. Install the thermostat to the housing, oriented as noted during removal, then position a new gasket (if used). 8. Place a 1/8 in. bead of RTV sealant in the groove on the water outlet sealing surface, then install the outlet while the sealer is still wet. 9. Install the outlet retainers and tighten to 21 ft. lbs. (28 Nm) for the 4.3L 1994-96 models or to 14 ft. lbs. (19 Nm) for the 1997-99 models. 10. Properly fill the engine cooling system and check for leaks. 11. Install the air inlet duct.
Be sure to clean all of the old gasket off completely (should be clean enough to eat from). Install new gasket but DONT use any adhesive from a tube in case you have to replace again.
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Damon
follow the upper radiator hose to the thermostat housing on engine. Thermostat is located under the thermostat housing.
Follow the upper radiator hose back to the engine, it is connected to the thermostat housing on the engine. The thermostat is located under the thermostat housing.
The thermostat is located under the elbow of the upper rad hose on top of the intake manifold.
The thermostat is located in the housing that the top radiator hose connects to, the bolts holding it on to the engine are metric.
I hope this question is about the engine coolant thermostat. If it is and you have to ask this, you shouldn't be allowed near a vehicle with a tool.
Should be in housing at the end of upper radiator hose
follow the large hose into the motor where the hose meets the motor is the thermostat remove to 2 bolts carefully they get hot and cold alot so there easy to break
where do i find the thermostat for 99 cavalier
The thermostat is located in the thermostat housing at the engine end of the top radiator hose.
Open the hood, locate upper radiator hose, follow the upper radiator hose from the radiator to the "gooseneck" located on the engine, the thermostat is located under the "gooseneck". The "gooseneck" has to be removed to replace thermostat.
weher thermostat locaked for impala 2001
About $9.00