Trailblazer, Envoy, and Bravada
TOOLS REQUIREDJ 39400-A Halogen Leak Detector
REMOVAL PROCEDURE
1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging.
2. Remove the compressor suction/discharge hose nut (3).
3. Remove the compressor suction/discharge hose from the compressor (4).
4. Remove the sealing washers.
5. Remove the compressor suction hose nut from the accumulator.
6. Remove the compressor suction hose from the accumulator.
7. Remove the O-ring seal.
8. Remove the bolt from the lift bracket.
9. Remove the nut from the engine stud.
10. Remove the compressor discharge hose (2) from the condenser (4).
11. Remove the O-ring seals.
12. Cap or plug all of the open connections.
INSTALLATION PROCEDURE
1. Install new O-ring seals.
2. Install the compressor discharge hose (2) to the condenser (4).
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the compressor discharge hose nut.
Tighten
Tighten the hose nut to 28 N.m (21 lb ft).
4. Install the compressor suction hose to the stud on the engine.
5. Install the nut.
Tighten
Tighten the nut to 48 N.m (35 lb ft).
6. Install the compressor suction hose to the engine lift bracket.
7. Install the bolt.
Tighten
Tighten the bolt to 48 N.m (35 lb ft).
8. Connect the compressor suction hose (1) to the accumulator.
9. Install the compressor suction hose nut to the accumulator.
Tighten
Tighten the nut to 48 N.m (35 lb ft).
10. Install the sealing washers.
11. Connect the compressor suction/discharge hose to the compressor (4).
12. Install the compressor suction/discharge hose washers.
13. Install the retaining nut (3).
Tighten
Tighten the nut to 33 N.m (24 lb ft).
14. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
15. Leak test the fittings of the components using the J 39400.