Chevrolet Trailblazer Service Manual page 649

7. Remove the upper a/c compressor mounting bolts from the bracket.
8. Remove the lower coolant hose from the engine compartment.
9. Lift the vehicle.
10. Disconnect the a/c compressor connector.
11. Remove the lower a/c compressor mounting bolts from the bracket.
12. Lower the vehicle.
13. Move the a/c compressor and mounting bracket to gain access to the remaining
bracket bolts.
14. Remove the upper a/c compressor mounting bolts from the engine.
15. Remove the a/c compressor from the bracket.
16. Remove the a/c compressor bracket from the engine.
17. Drain the oil from the a/c compressor and measure the amount of oil.
To Install:
1. Refill the a/c compressor with the amount of oil drained.
2. Position the a/c compressor and bracket onto the engine.
3. Install the upper a/c compressor mounting bolts into the engine. Torque the bolts to
37 ft-lb (50 Nm).
4. Install the upper a/c compressor mounting bolts into the bracket. Torque the bolts
to 37 ft-lb (50 Nm).
5. Lift the vehicle.
6. Install the lower a/c compressor mounting bolts into the bracket. Torque the bolts to
37 ft-lb (50 Nm).
7. Connect the a/c compressor connector.
8. Install the lower coolant hose into the engine compartment.
9. Lower the vehicle.
10. Attach the a/c compressor hose assembly to the a/c compressor. Torque the bolts
to 12 ft-lb (16 Nm).
11. Install the drive belt onto the a/c compressor.
12. Install the cooling fan and shroud into the engine compartment.
13. Install the air cleaner resonator outlet duct into the engine compartment.
14. Install the washer solvent container into the engine compartment.
15. Install the washer solvent container into the engine compartment.
16. Refill the engine cooling system.
17. Evacuate and recharge the refrigerant in the A/C system.
18. Use a J 39400-A halogen leak detector to leak test the component fittings.