Hummer H3. Manual — part 1275

Fig. 37: Heater Inlet Hose Replacement (LLR-Left Hand Drive)
Courtesy of GENERAL MOTORS CORP.

Heater Inlet Hose Replacement (LLR-Left Hand Drive)

Callout

Component Name

Preliminary Procedures

1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static

Fill) or Cooling System Draining and Filling (Vac-N-Fill) .

2. Remove the generator. Refer to Generator Replacement .

3. Using J 38185 , reposition the hose clamp at the heater outlet fitting.

4. Remove the heater inlet hose from the heater outlet fitting.

5. Remove the heater inlet hose from the heater core.

Transmission Housing Bolt

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

HEATER INLET HOSE REPLACEMENT (RIGHT HAND DRIVE)

Fig. 38: Heater Inlet Hose Replacement (Right Hand Drive)
Courtesy of GENERAL MOTORS CORP.

Heater Inlet Hose Replacement (Right Hand Drive)

1

Tighten: 50 N.m (37 lb ft)

NOTE:

Refer to Fastener Notice .

2

Heater Inlet Hose
Tip: Check for coolant leak around the heater inlet hose connections.

Callout

Component Name

Preliminary Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static

Fill) or Cooling System Draining and Filling (Vac-N-Fill) .

2. Remove the battery. Refer to Battery Replacement .

3. Use J 38185 to release the radiator hose clamp and J 43181 to release the quick

connect. See Special Tools.

1

Heater inlet hose clamp

Heater inlet hose bracket bolt

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

HEATER OUTLET HOSE REPLACEMENT (LLR-LEFT HAND DRIVE)

Fig. 39: Heater Outlet Hose Replacement (LLR-Left Hand Drive)
Courtesy of GENERAL MOTORS CORP.

Heater Outlet Hose Replacement (LLR-Left Hand Drive)

2

Tighten: 9 N.m (7 lb ft)

3

Heater inlet hose quick connect fitting

4

Heater inlet hose assembly

Callout

Component Name

Preliminary Procedure

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

HEATER OUTLET HOSE REPLACEMENT (RIGHT HAND DRIVE)

Fig. 40: Heater Outlet Hose Replacement (Right Hand Drive)
Courtesy of GENERAL MOTORS CORP.

Heater Outlet Hose Replacement (Right Hand Drive)

1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static

Fill) or Cooling System Draining and Filling (Vac-N-Fill) .

2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .

1

Heater Outlet Hose Assembly
Tip: Use J 38185 to release the radiator hose clamp and J 43181 to
release the quick connect. See Special Tools.

Callout

Component Name

Preliminary Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static

Fill) or Cooling System Draining and Filling (Vac-N-Fill) .

2. Remove the battery. Refer to Battery Replacement .

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3