GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 38185 Hose Clamp Piers

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  4. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  5. Remove the surge tank. Refer to Radiator Surge Tank Replacement .
  6. Remove the front grille. Refer to Grille Replacement .
  7. Remove the front bumper. Refer to Front Bumper Replacement .
  8. Remove the charge air cooler inlet and outlet ducts. Refer to Charged Air Cooler Hoses/Pipes Replacement .

  9. Object Number: 1728635  Size: SH
  10. Using the J 38185 , reposition the radiator inlet hose clamp.
  11. Disconnect the radiator inlet hose from the thermostat housing.
  12. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .

  13. Object Number: 1652251  Size: SH
  14. Remove the radiator outlet hose to radiator retaining clip and disconnect the hose.

  15. Object Number: 1731106  Size: SH
  16. Remove the upper transmission cooler line to radiator retaining clip and disconnect the line.

  17. Object Number: 1731100  Size: SH
  18. Remove the transmission cooler line to auxiliary transmission cooler retaining clip and disconnect the line.

  19. Object Number: 924814  Size: SH
  20. Remove the evaporator to condenser hose retaining nut (1).
  21. Disconnect the evaporator to condenser hose from the condenser.

  22. Object Number: 1652913  Size: SH
  23. Remove the suction hose bolt (1) from the air conditioning (A/C) compressor.
  24. Disconnect the suction hose (4) from the A/C compressor.

  25. Object Number: 1730626  Size: SH
  26. Disconnect the wiring ground located at the RH fender.

  27. Object Number: 1730625  Size: SH
  28. Remove the RH fender to core support brace bolts and remove the brace.

  29. Object Number: 1730623  Size: SH
  30. Disconnect the wiring ground located at the LH fender.

  31. Object Number: 1730624  Size: SH
  32. Remove the LH fender to core support brace bolts and remove the brace.
  33. Disconnect the wiring harness electrical connector at the underhood bused electrical center (UBEC).
  34. Disconnect the hood release cable at the hood release latch. Position the cable aside.

  35. Object Number: 1662147  Size: SH
  36. Remove the positive battery cable nut from the junction block and disconnect the cable.

  37. Object Number: 1662151  Size: SH
  38. Remove the auxiliary positive cable nut from the junction block and disconnect the cable.

  39. Object Number: 1665180  Size: SH
  40. Remove the positive battery to UBEC cable nut from the junction block and disconnect the cable.

  41. Object Number: 1728562  Size: SH
  42. Remove the 4 LH and 4 RH core support bolts (1).
  43. Remove the core support and the cooling layer.