C 2500 Truck 2WD V8-6.6L DSL Turbo VIN 1 (2001)
Thermostat: Service and Repair
Thermostat Replacement
Removal Procedure
1. Drain the engine coolant.
2. Remove the water outlet tube.
3. Remove the bolt for the fuel line bracket.
4. Remove the 4 bolts retaining the thermostat housing cover.
5. Remove the 2 thermostats with the seals.
Inspection and Repair Procedure
1. Inspect the thermostats for sticking, cracks, and leakage of wax.
2. Replace the thermostats if damage is found.
3. Clean the thermostat housing and thermostat housing cover sealing surfaces.
Installation Procedure
1. Install the 2 thermostats with the seals to the thermostat housing.
The rear thermostat (4) has 2 vent valves. Install with the vent valves towards the rear of engine.