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 Replacementfor 4.3L engine and Air Cleaner Assembly Replacementfor 4.8L, 5.3L, 6.0L engines.
5. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .
6. Remove the front grille. Refer to Grille Replacement .
7. Remove the front bumper. Refer to Front Bumper Replacement .
8. Remove the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement .



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



12. Remove the radiator outlet hose to radiator retaining clip and disconnect the hose.



13. Remove the upper transmission cooler line to radiator retaining clip and disconnect the line.



14. Remove the transmission cooler line to auxiliary transmission cooler retaining clip and disconnect the line.



15. Remove the evaporator to condenser hose retaining nut (1).
16. Disconnect the evaporator to condenser hose from the condenser.



17. Remove the suction hose bolt (1) from the air conditioning (A/C) compressor.
18. Disconnect the suction hose (4) from the A/C compressor.
19. Unclip the wiring harness from the tie bar.



20. Remove the RH fender to core support brace bolts and remove the brace.



21. Disconnect the wiring ground located at the LH fender.



22. Remove the LH fender to core support brace bolts and remove the brace.
23. Disconnect the wiring harness electrical connector at the underhood bused electrical center (UBEC).
24. Disconnect the hood release cable at the hood release latch. Position the cable aside.



25. Remove the positive battery cable nut from the junction block and disconnect the cable.



26. Remove the auxiliary positive cable nut from the junction block and disconnect the cable.



27. Remove the positive battery to UBEC cable nut from the junction block and disconnect the cable.



28. Remove the 4 LH and 4 RH core support bolts.
29. Remove the core support and the cooling layer.