Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the new O-ring seal for any sign or cracks, cuts or damage. Replace if necessary.
Remove the cap or tape from the A/C refrigerant components.
Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant components.
IMPORTANT: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the new O-ring seal to enter the refrigerant system.
Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.
IMPORTANT: DO NOT reuse O-ring seals.
Carefully slide the new O-ring seal onto the A/C refrigerant component.
The O-ring seal must be fully seated.

Fig 1: View Of Fully Seated O-Ring Seal

Courtesy of GENERAL MOTORS CORP.

Assemble the A/C components.
Refer to the appropriate repair procedure.
- For compression style fittings use a back up wrench on the fitting (2) and tighten the fitting nut (1) to specification.
- For banjo style fittings install the bolt retaining the banjo type fitting and tighten to specification.