K 1500 Yukon Denali AWD V8-6.0L VIN U (2002)
5. Remove the A/C refrigerant filter (3) from the evaporator tube (2).
INSTALLATION PROCEDURE
1. Lubricate the O-rings (2) with 525 viscosity refrigerant oil.
2. Install the O-rings (2) to the evaporator tube.