GM Service Manual Online
For 1990-2009 cars only

Heater Outlet Hose Replacement L61, LE5

Tools Required

J 38185 Hose Clamp Pliers

Caution: With a pressurized cooling system, the coolant temperature in the radiator can be considerably higher than the boiling point of the solution at atmospheric pressure. Removal of the surge tank cap, while the cooling system is hot and under high pressure, causes the solution to boil instantaneously with explosive force. This will cause the solution to spew out over the engine, the fenders, and the person removing the cap. Serious bodily injury may result.

Removal Procedure


    Object Number: 873722  Size: SH
  1. Remove the surge tank cap.
  2. Place a drain pan under the heater hoses near the front of the dash.
  3. Remove the dash panel exterior sound barrier.

  4. Object Number: 872578  Size: SH
  5. Reposition the heater outlet hose clamp at the heater core using J 38185 .
  6. Remove the heater outlet hose from the heater core.

  7. Object Number: 872575  Size: SH
  8. Reposition the hose heater outlet hose clamp at the engine using J 38185 .
  9. Remove the heater outlet hose from the engine.

Installation Procedure


    Object Number: 872578  Size: SH
  1. Install the heater outlet hose to the heater core.
  2. Reposition the hose clamp to secure the hose using J 38185 .

  3. Object Number: 872575  Size: SH
  4. Install the heater outlet hose to the engine.
  5. Reposition the hose clamp to secure the hose using J 38185 .
  6. Fill the cooling system. Refer to Cooling System Draining and Filling .
  7. Remove the drain pan from under the vehicle.
  8. Install the dash panel exterior sound barrier.

Heater Outlet Hose Replacement LNF


Object Number: 2008943  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling.
  2. Remove the evaporator hose assembly. Refer to Air Conditioning Evaporator Hose Assembly Replacement
  3. Remove the condenser tube. Refer to Condenser Tube Replacement

1

Heater Outlet Hose

Procedure

Using J 38185 reposition the heater outlet hose clamps.

Special Tools

J 38185 Hose Clamp Pliers