Diesel Data: Automotive Repair

Engine Coolant Thermostat - Removal






3.5L ENGINE










1. Disconnect negative battery cable.
2. Raise vehicle on hoist.
3. Remove belly pan.Belly Pan - Removal
4. Drain cooling system Service and Repair.
5. Lower vehicle on hoist.
6. Remove air box asy. Air Cleaner Body - Removal
7. Disconnect lower radiator hose (2) from thermostat housing (1).
8. Remove thermostat housing bolts.
9. Remove thermostat housing (1), thermostat, and gasket.

NOTE: The OEM thermostat is staked in place at the factory. To ensure proper seating of replacement thermostat, carefully remove the bulged metal from the thermostat housing using a suitable hand held grinder. It is not necessary to restake the replacement thermostat into the thermostat housing.

10. Clean gasket surfaces.