For 1990-2009 cars

#### Tools Required

• | J 43600 Air Conditioning Service Center

• | J 45268 Flush Adapter Kit

• | J 41447 Leak Detection Dye

• | J 42220 Universal 12V Leak Detection Lamp

Important: Flushing with the ACR 2000 is not intended to remove metal from the A/C system.

Flushing is intended to remove the following contaminants:

• | Contaminated PAG oil

• | Desiccant, following a desiccant bag failure

• | Overcharge of PAG oil

• | Refrigerant contamination

Important: Warmer engine or ambient temperature decreases the refrigerant recovery time during the A/C flush procedure.

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Remove the TXV. Refer to Thermal Expansion Valve Replacement .
3. Install J 45268 - 103.
4. Remove the A/C compressor. Refer to Air Conditioning Compressor Replacement .
5. Install J 45268 - 5 to the discharge hose.
6. Install J 45268 - 4 to the suction hose.
7. Forward flow refrigerant flushing is recommended for contaminated refrigerant or PAG oil.

Perform the following procedure:

| Important: The filter inside J 45268 - 1 is serviceable. Remove and discard the check valve from the filter.

7.1. | Service the filter with ACDelco P/N GF 470, before each flush.

Connect J 45268 - 1 flush filter to the suction port of J 45268 - 4 flush adapter.

7.2. | Connect the blue hose from J 43600 to J 45268 - 1 flush filter adapter.

7.3. | Connect the red hose from J 43600 to J 45268 - 5 flush adapter.

8. Reverse flow refrigerant flush is recommended for desiccant bag failure. Replace the receiver dehydrator when the A/C flush is complete and perform the following procedure:

| Important: The filter inside J 45268 - 1 is serviceable. Remove and discard the check valve from the filter.

8.1. | Service the filter with ACDelco P/N GF 470, before each flush. Connect J 45268 - 1 flush filter to the discharge port of J 45268 - 5 flush adapter.

8.2. | Connect the blue hose from J 43600 to J 45268 - 1 flush filter adapter.

8.3. | Connect the red hose from J 43600 to the suction port of J 45268 - 4 flush adapter.

9. Flush the A/C system. Follow the instructions supplied with J 43600 . Close the valve on the external refrigerant tank, before starting the flush process.
10. Remove J 45268 - 4 from the suction hose.
11. Remove J 45268 - 5 from the discharge hose.
12. Remove J 45268 - 1 from J 43600 .

Important: Flushing will remove all the PAG oil from the A/C system.

The A/C system must be replenished with the correct amount of PAG oil.
13. Drain the PAG oil from the A/C compressor.

Rotate the compressor input shaft to assist in draining the PAG oil from the compressor.

14. Add back the total system capacity of PAG oil to the A/C compressor. Refer to Refrigerant System Capacities .

Important: Flushing will remove the fluorescent leak detection dye from the A/C system.

15. Add one bottle of J 41447 directly to the A/C compressor.
16. Install the A/C compressor. Refer to Air Conditioning Compressor Replacement .
17. Remove J 45268 - 103.
18. Install new seal washers. Refer to Sealing Washer Replacement .
19. Inspect the TXV for debris. Clean or replace as needed.
20. Install the TXV. Refer to Thermal Expansion Valve Replacement .
21. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
22. Leak test the fittings using J 42220 .