Escalade V8-6.0L VIN N (2002)
Refrigerant: Service and Repair
If oil was removed from the A/C system during the recovery process or due to component replacement, the oil must be replenished. Oil can be injected
into a charged system using J 45037 For the proper quantities of oil to add to the A/C refrigerant system, refer to Refrigerant System Capacities.
Flushing
TOOLS REQUIRED
^
J 43600 Air Conditioning Service Center
^
J 45268 Flush Adapter Kit
^
J 41447 Leak Detection Dye
^
J 41459 Leak Detection Dye Injector
^
J 42220 Universal Leak Detection Lamp
IMPORTANT: Flushing is not intended to remove metal from the A/C system.
Flushing is intended to remove the following:
^
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 orifice tube.
3. Connect the A/C lines with the orifice tube removed.
4. Remove the A/C compressor.
5. Inspect the end of the suction hose for a suction screen.
6. Remove the suction screen, if installed.
7. Install the J 45268-4 to the A/C compressor suction hose.
8. install the J 45268-5 to the A/C compressor discharge hose.
9. Forward flow refrigerant flushing is recommended for contaminated refrigerant or PAG oil. Perform the following procedure:
IMPORTANT: The filter inside the J 45268-1 is serviceable. Remove and discard the check valve from the filter.
9.1.
Service the filter with AC P/N GF 470, before each flush.
Connect the J 45268-1 flush filter to the suction port of the J 45268-4 flush adapter.
9.2.
Connect the blue hose from the J 43600 to the J 45268-1 flush filter adapter.
9.3.
Connect the red hose from the J 43600 to the J 45268-5 flush adapter.
10. Reverse flow refrigerant flushing is recommended for desiccant bag failure.
Perform the following procedure and replace the accumulator when the flush procedure is complete.
IMPORTANT: The filter inside the J 45268-1 is serviceable. Remove and discard the check valve from the filter.
10.1. Service the filter with AC P/N GF 470, before each flush.
Connect the J 45268-1 flush filter to the discharge port of the J 45268-5 flush adapter.
10.2. Connect the blue hose from the J 43600 to the J 45268-1 flush filter adapter.