Tools Required
• | J 43600 Air Conditioning Service Center |
• | 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:
• | Desiccant, following a desiccant bag failure |
• | Refrigerant contamination |
Important: Warmer engine or ambient temperature decreases the refrigerant recovery time during the A/C flush procedure.
- Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging
.
- Remove the TXV. Refer to
Thermal Expansion Valve Replacement
.
- Install J 45268
- 103.
- Remove the A/C compressor. Refer to
Air Conditioning Compressor Replacement
.
- Install J 45268
- 5 to the discharge hose.
- Install J 45268
- 4 to the suction hose.
- 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. |
- 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. |
- 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.
- Remove J 45268
- 4 from the suction hose.
- Remove J 45268
- 5 from the discharge hose.
- 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.
- Drain the PAG oil from the A/C compressor.
Rotate the compressor input shaft to assist in draining the PAG oil from the compressor.
- 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.
- Add one bottle of J 41447
directly to the A/C compressor.
- Install the A/C compressor. Refer to
Air Conditioning Compressor Replacement
.
- Remove J 45268
- 103.
- Install new seal washers. Refer to
Sealing Washer Replacement
.
- Inspect the TXV for debris. Clean or replace as needed.
- Install the TXV. Refer to
Thermal Expansion Valve Replacement
.
- Evacuate and recharge the A/C system. Refer to
Refrigerant Recovery and Recharging
.
- Leak test the fittings using J 42220
.