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Chevrolet Silverado / GMC Sierra. Manual - part 2335
Fig. 83: Removing/Installing Heater Hose To Engine
Courtesy of GENERAL MOTORS CORP.
6. Remove the inlet heater hose from the water pump.
Fig. 84: View Of Inlet & Outlet Heater Hoses (LR4, LM7, LQ4)
Courtesy of GENERAL MOTORS CORP.
7. Remove the inlet heater hose.
Installation Procedure
2008 Chevrolet Silverado 1500
2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 85: View Of Inlet & Outlet Heater Hoses (LR4, LM7, LQ4)
Courtesy of GENERAL MOTORS CORP.
1. Install the inlet heater hose.
2008 Chevrolet Silverado 1500
2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 86: Removing/Installing Heater Hose To Engine
Courtesy of GENERAL MOTORS CORP.
2. Install the inlet heater hose to the water pump.
2008 Chevrolet Silverado 1500
2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 87: Connecting Quick-Connect Fittings
Courtesy of GENERAL MOTORS CORP.
3. Connect the heater hose to the heater core.
4. Install the heater and surge tank hoses to the mounting clip.
5. Install the air intake tube.
6. Fill the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or
Cooling System Draining and Filling (Static Fill) .
HEATER OUTLET HOSE REPLACEMENT
Removal Procedure
1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or
Cooling System Draining and Filling (Static Fill) .
2. Remove the air intake tube.
3. Remove the heater and surge tank hoses from the mounting clip.
IMPORTANT: Firmly push the quick connect onto the heater core pipe until
you hear an audible click.
2008 Chevrolet Silverado 1500
2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
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