gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Restraint Systems > < Service Port HVAC|Service and Repair
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2. Evacuate and charge the A/C system. Refer to Refrigerant Recovery and Recharging   (See: Service and Repair/Procedures/Refrigerant Recovery

and Recharging).

Note:  To prevent loss of refrigerant charge, tighten the cap. Replace the cap if the seal is missing or damaged.

3. Test the affected A/C fittings for leaks using J 39400-A - Halogen Leak Detector.

Restraint Systems > < Service Port HVAC|Service and Repair