GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling.
  2. Lower the vehicle.
  3. Remove the injector sight shield. Refer to Fuel Injector Sight Shield Replacement.

  4. Object Number: 1334995  Size: SH
  5. Using J 38185 , disengage the hose clamp and disconnect the heater outlet hose (1) from the heater pipe assembly.
  6. Using J 38185 , disengage the hose clamp and disconnect the heater inlet hose (2) from the heater pipe assembly.

  7. Object Number: 1574001  Size: SH
  8. Using J 38185 , disengage the hose clamp and disconnect the surge tank outlet hose from the heater pipe assembly.

  9. Object Number: 1574011  Size: SH
  10. Using J 38185 , disengage the hose clamps and disconnect the heater pipe assembly from the heater core.

  11. Object Number: 1334994  Size: SH
  12. Remove the battery tray. Refer to Battery Tray Replacement.
  13. Remove the heater pipe assembly retaining nuts.
  14. Reposition the engine wiring harness aside.
  15. Remove the heater pipe assembly.

Installation Procedure


    Object Number: 1334994  Size: SH
  1. Install the heater pipe assembly.
  2. Reposition the engine wiring harness into place.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the heater pipe assembly retaining nuts and tighten to 9 N·m (80 lb in).
  5. Install the battery tray. Refer to Battery Tray Replacement.

  6. Object Number: 1574011  Size: SH
  7. Using J 38185 , disengage the hose clamps and connect the heater pipe assembly to the heater core.

  8. Object Number: 1574001  Size: SH
  9. Using J 38185 , disengage the hose clamp and connect the surge tank outlet hose to the heater pipe assembly.

  10. Object Number: 1334995  Size: SH
  11. Using J 38185 , disengage the hose clamp and connect the heater inlet hose (2) to the heater pipe assembly.
  12. Using J 38185 , disengage the hose clamp and connect the heater outlet hose (1) to the heater pipe assembly.
  13. Install the injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  14. Fill the cooling system. Refer to Cooling System Draining and Filling.