GM Service Manual Online
For 1990-2009 cars only

Special Tools

J-38185 Hose Clamp Pliers

Removal Procedure


    Object Number: 1548562  Size: SH
  1. Disconnect the heater inlet and outlet hoses from the auxiliary heater inlet/outlet pipes using J-38185 pliers .
  2. Drain the coolant system. Refer to Cooling System Draining and Filling .
  3. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .

  4. Object Number: 1548564  Size: SH
  5. Remove the auxiliary heater inlet/outlet pipe clip nut (1).

  6. Object Number: 1548566  Size: SH
  7. Remove the auxiliary heater inlet/outlet pipe clip (1).

  8. Object Number: 1548568  Size: SH
  9. Remove the auxiliary heater inlet/outlet pipe (2) clip nut (1).

  10. Object Number: 1548572  Size: SH
  11. Remove the auxiliary heater inlet/outlet pipe clip (1).

  12. Object Number: 1548575  Size: SH
  13. Remove the auxiliary inlet/outlet pipe (2) clip nut (1).

  14. Object Number: 1548579  Size: SH
  15. Using the J-38185 pliers , disconnect the auxiliary heater inlet/outlet hoses (2) at the rear of the vehicle.
  16. Remove the auxiliary heater inlet/outlet hose assembly.

Installation Procedure


    Object Number: 1548579  Size: SH
  1. Install the auxiliary heater inlet/outlet hoses (2) to the rear of the vehicle.
  2. Using a small flat-bladed screwdriver, release the hose clamp retention locks.
  3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1548575  Size: SH
  4. Install the auxiliary inlet/outlet pipe (2) clip nut (1) and tighten to 10 N·m (89 lb in) .

  5. Object Number: 1548572  Size: SH
  6. Install the auxiliary heater inlet/outlet pipe clip (1).

  7. Object Number: 1548568  Size: SH
  8. Install the auxiliary heater inlet/outlet pipe (2) clip nut (1) and tighten to 10 N·m (89 lb in) .

  9. Object Number: 1548566  Size: SH
  10. Install the auxiliary heater inlet/outlet pipe clip (1).

  11. Object Number: 1548564  Size: SH
  12. Install the auxiliary heater inlet/outlet pipe clip nut (1) and tighten to 10 N·m (89 lb in) .
  13. Lower the vehicle.

  14. Object Number: 1548562  Size: SH
  15. Install the auxiliary heater inlet/outlet pipe clip nut (1) and tighten to 10 N·m (89 lb in) .
  16. Install the heater inlet and outlet hoses to the auxiliary heater inlet/outlet pipes.
  17. Using a small flat-bladed screwdriver, release the hose clamp retention locks.
  18. Fill the coolant system. Refer to Cooling System Draining and Filling .