GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 37097-A Heater Hose Clamp Tool

Removal Procedure

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

  2. Object Number: 130796  Size: SH
  3. Using the J 37097-A , remove the clamps from the coolant reservoir hose and the heater core side of the hoses.
  4. Using the J 37097-A , remove the heater hose clamps from the engine.
  5. Remove the heater hoses from the heater core.

  6. Object Number: 605708  Size: SH
  7. Remove the heater hoses (1, 2) from the engine.
  8. Remove the heater hoses.

Installation Procedure


    Object Number: 474770  Size: SH
  1. Install the heater hoses (1, 2) to the engine.

  2. Object Number: 605708  Size: SH
  3. Install the heater hoses (1, 2) to the heater core.
  4. Install the coolant reservoir hose.

  5. Object Number: 130796  Size: SH
  6. Using the J 37097-A , install the heater hose clamps to the engine.
  7. Using the J 37097-A , install the clamps to the coolant reservoir hose and the heater core side of the hoses.
  8. Refill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.