Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
Heater Hose: Service and Repair
Heater Hose Replacement - Inlet (With RPO Code HP2 Front)
HEATER HOSE REPLACEMENT - INLET (W/ HP2 FRONT)
REMOVAL PROCEDURE
1. Drain the cooling system. Refer to Draining and Filling Cooling System (with HP2)Draining and Filling Cooling System (without HP2) in Cooling
System.
2. Loosen the air cleaner outlet duct clamps at the following locations:
-
Throttle body
-
Mass airflow/intake air temperature (MAF/IAT) sensor
3. Remove the radiator inlet hose clip from the outlet duct.
4. Remove the air cleaner outlet duct.
5. Reposition the inlet heater hose clamp from the engine.
6. Remove the inlet heater hose from the engine.