Silverado 1500 4WD V8-5.3L VIN T (2004)
1. Coat the O-rings (2) with 525 viscosity refrigerant oil.
2. Install the O-rings (2) to the evaporator tube.
3. Install the A/C refrigerant filter (3) to the evaporator tube (2) with the flow arrow pointing towards the evaporator.
NOTE: Refer to Fastener Notice in Service Precautions.
4. Install the nuts (4) to the A/C refrigerant filter (1).
Tighten
Tighten the nuts to 15 N.m (11 lb ft).
5. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging.