GM Service Manual Online
For 1990-2009 cars only

Object Number: 1865402  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Drain the coolant. Refer to Cooling System Draining and Filling .
  2. Remove heater inlet hose from heater core. Refer to Heater Inlet Hose Replacement .
  3. Remove heater outlet hose from heater core. Refer to Heater Outlet Hose Replacement .
  4. Remove heater core cover. Refer to Heater Core Cover Replacement .

1

Heater Core Tube Clip (Qty: 2)

Procedure

Use new Heater Core Tube Clips upon installation.

2

Heater Core Tube

Procedure

  1. Cap or plug heater core, hoses and tubes to prevent any fluid leakage.
  2. Position tube forward to release from heater core and slide rearward to remove.

Tip
Ensure heater core tube seals are in place upon installation.