GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

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

  2. Object Number: 247330  Size: SH
  3. Position the J 38185 in order to remove the heater hose clamps.
  4. Remove the heater hoses from the heater core.

  5. Object Number: 420668  Size: SH
  6. Remove the heater hoses from the heater pipe adapters.

Installation Procedure


    Object Number: 420668  Size: SH
  1. Install the heater hoses on to the heater pipe adapters.
  2. Install the heater hoses on to the heater core.

  3. Object Number: 247330  Size: SH
  4. Position the J 38185 in order to install the heater hose clamps.
  5. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.