Tools Required

J 39400-A Halogen Leak Detector

Important: The A/C refrigerant filter, ACDelco P/N 15-1697 must be installed to the evaporator inlet tube between the condenser and evaporator. The installation of this A/C refrigerant filter eliminates the need for flushing.

1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.



3. Remove the air baffle bolts.
4. Remove the air baffle.



5. Remove the bolt which secures the evaporator inlet tube to the condenser.
6. Disconnect the evaporator inlet tube from the condenser.

Important: Measure from the condenser block fitting end of the evaporator inlet tube. Cut the tube with a tubing cutter.

7. Measure 110 mm (4.3 in) and mark the evaporator tube.

Important: Do not allow metal shavings to enter the evaporator tube during cutting or when removing the burrs.

8. Cut the evaporator inlet tube.
9. Remove the cut portion of the evaporator inlet tube from the vehicle.
10. Measure 60 mm (2.4 in) and mark the evaporator inlet tube.
11. Cut the evaporator inlet tube.
12. Remove any burrs from the cut ends of the evaporator inlet tube.

Important: You must first remove the O-rings from the filter before you seat the ferrules to the evaporator inlet tube.

13. Remove the O-rings from the A/C refrigerant filter.
14. Install one flare nut and one ferrule to the evaporator inlet tube with the tapered end of the ferrule facing the flare nut.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Important: Fully seat the A/C refrigerant filter onto the evaporator inlet tube.

15. Install the A/C refrigerant filter to the evaporator tube with the arrow pointing toward the evaporator.

Tighten
Tighten the nut to 15 N·m (11 lb ft).

16. Install one flare nut and one ferrule to the other half of the evaporator inlet tube with the tapered end of the ferrule facing the flare nut.
17. Install the A/C refrigerant filter to the evaporator inlet tube.

Tighten
Tighten the nut to 15 N·m (11 lb ft).

18. Loosen the flare nuts and remove the A/C refrigerant filter from the evaporator inlet tube.
19. Lubricate and install the O-rings to each end of the evaporator inlet tube. Refer to O-Ring Replacement .

Important: Fully seat the filter to the ferrules in order to ensure that the O-rings seat inside of the filter housing.

20. Install the A/C refrigerant filter to the evaporator inlet tube with the arrow pointing toward the evaporator.

Tighten
Tighten the nuts to 15 N·m (11 lb ft).

21. Connect the evaporator inlet tube to the condenser.
22. Install the bolt which secures the evaporator inlet tube to the condenser.

Tighten
Tighten the bolt to 16 N·m (12 lb ft).




23. Install the air baffle.
24. Install the air baffle bolts.

Tighten
Tighten the bolts to 20 N·m (15 lb ft).

25. Lower the vehicle.
26. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
27. Leak test the fittings of the component using J 39400-A .