REMOVAL & INSTALLATION
See Figures 1, 2, 3, 4, 5, 6 and 7
- Disconnect the negative battery cable.
- Drain and recycle the engine coolant.
If equipped with air conditioning:
- Remove the engine cover.
- Remove the drive belt.
- Remove the alternator.
- Remove the upper radiator hose.
- Remove the upper radiator hose from the thermostat housing.
- Remove the retaining bolts from the thermostat housing.
- Remove the thermostat housing, thermostat, and gasket from the intake manifold.
- Clean the gasket mating surfaces.
If a new thermostat is being installed, make sure the replacement is the specified part for the vehicle.
- If the gasket goes beneath the thermostat flange, be sure to first install a new gasket. Install the thermostat spring side down into the intake manifold.
- If the gasket goes on top of the thermostat flange, install a new thermostat gasket above the thermostat.
The thermostat housing may have the word FRONT on it; this goes towards the front of the vehicle.
- Install the thermostat housing onto the intake manifold.
- Tighten the housing bolts to 200 inch lbs. (23 Nm).
- Reinstall the upper radiator hose onto the housing.
If the vehicle has air conditioning:
- Reinstall the alternator.
- Reinstall the drive belt.
- Reinstall the engine cover.Ensure that you have retightened the radiator drain before refilling with coolant.
- Refill the radiator with a proper coolant mixture.
- Connect the negative battery cable.
- Start the engine and bleed the cooling system.
- Ensure that the thermostat is operational (by checking the upper radiator hose for warmth), and that there are no leaks.