Heater Outlet Hose Replacement (Auxiliary Water Pump to Heater Outlet Pipe LKW)

Fig 1: Heater Outlet Hose & Clamps (Auxiliary Water Pump to Heater Outlet Pipe LKW)

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedures Drain the cooling system. Refer to Cooling System Draining and Filling (GE 47716) and Cooling System Draining and Filling (Static) . Remove the air cleaner resonator and outlet duct. Refer to Intake Manifold Cover Replacement (LKW) . Reposition the engine control module out of the way. Refer to Engine Control Module Replacement (LKW) . Reposition the heater outlet hose out of the way. Refer to Heater Outlet Hose Replacement (Heater Core Outlet Tube to Heater Outlet Pipe LKW) , Heater Outlet Hose Replacement (Auxiliary Water Pump to Heater Outlet Pipe LKW) and Heater Outlet Hose Replacement (Radiator Surge Tank Auxiliary to Water Pump to Water Outlet LKW) .
1	Heater Outlet Hose Clamp (Qty: 2) Procedure Reposition the heater outlet hose clamp using the BO-38185 hose clamp pliers. Special Tools BO-38185 Hose Clamp Pliers For equivalent regional tools, refer to Special Tools .
2	Heater Outlet Hose Procedure Unclip the heater outlet hose from the retaining clip. Fill the cooling system to the proper level. Refer to Cooling System Draining and Filling (GE 47716) and Cooling System Draining and Filling (Static) . Inspect the cooling system for leaks.

Callout

Component Name

Preliminary Procedures

Drain the cooling system. Refer to Cooling System Draining and Filling (GE 47716) and Cooling System Draining and Filling (Static) .
Remove the air cleaner resonator and outlet duct. Refer to Intake Manifold Cover Replacement (LKW) .
Reposition the engine control module out of the way. Refer to Engine Control Module Replacement (LKW) .
Reposition the heater outlet hose out of the way. Refer to Heater Outlet Hose Replacement (Heater Core Outlet Tube to Heater Outlet Pipe LKW) , Heater Outlet Hose Replacement (Auxiliary Water Pump to Heater Outlet Pipe LKW) and Heater Outlet Hose Replacement (Radiator Surge Tank Auxiliary to Water Pump to Water Outlet LKW) .

Heater Outlet Hose Clamp (Qty: 2)
Procedure
Reposition the heater outlet hose clamp using the BO-38185 hose clamp pliers.
Special Tools
BO-38185 Hose Clamp Pliers
For equivalent regional tools, refer to Special Tools .

Heater Outlet Hose

Procedure

Unclip the heater outlet hose from the retaining clip.
Fill the cooling system to the proper level. Refer to Cooling System Draining and Filling (GE 47716) and Cooling System Draining and Filling (Static) .
Inspect the cooling system for leaks.