C 3500 Truck 2WD V8-6.6L DSL Turbo VIN 1 (2002)
4. Remove the thermostat seals.
5. Remove the ECT sensor if replacing the thermostat housing crossover.
6. Clean the water crossover.
7. Clean the thermostat housing crossover mating surfaces.
8. Inspect the thermostat housing crossover for cracks.
9. Inspect the thermostat housing crossover mating surfaces for damage.
10. Replace the thermostat housing crossover if any damage is found.
11. Install the thermostats with the seals. The thermostat with the vent valves goes toward the rear of the engine. Install with the vent valves towards
the rear of the engine.
12. Install the thermostat cover and gasket.
Notice: Refer to Fastener Notice in Service Precautions.
13. Install the thermostat cover bolts.
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Tighten the thermostat cover bolts to 21 Nm (15 ft. lbs.).
14. If removed, install the ECT sensor.
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Tighten the ECT sensor to 33 Nm (24 ft. lbs.).
Installation Procedure
