Workshop Repair and Service Manuals GMC SIERRA
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Air Conditioning System Seal Replacement

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Removal Procedure

Air Conditioning System Seal Replacement

Remove the seal washer from the A/C refrigerantcomponent.

Important:Cap or tape the open A/C refrigerant components immediatelyto prevent system contamination.

Inspect the seal washer for signs of damage to help determinethe root cause of the failure.Inspect the A/C refrigerant components for damage or burrs.Repair if necessary.

Important:DO NOT reuse sealing washer.

Discard the sealing washer.Installation Procedure

Important:Flat washer type seals do not require lubrication.

Inspect the new seal washer for any signs of cracks, cuts, ordamage.

Do not use a damaged seal washer.

Remove the cap or tape from the A/C refrigerantcomponents.

Air Conditioning System Seal Replacement

Using a lint-free clean, dry cloth, clean the sealingsurfaces of the A/C refrigerant components.Carefully install the new seal washer onto the A/Crefrigerant component.

The washer must completely bottom against the surface of thefitting.

Important:After tightening the A/C components, there should be a slightsealing washer gap of approximately 1.2-mm(3/64-in) between the A/C line and the A/Ccomponent.

Assemble the remaining A/C refrigerant components. Refer tothe appropriate repair procedure.
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