Service Port HVAC: Service and Repair

REMOVAL

WARNING: REFER TO THE APPLICABLE WARNINGS AND CAUTIONS FOR THIS SYSTEM BEFORE PERFORMING THE FOLLOWING OPERATION. FAILURE TO FOLLOW THE WARNINGS AND CAUTIONS COULD RESULT IN POSSIBLE PERSONAL INJURY OR DEATH.

A/C Service Ports:

1. Remove the protective caps from the low and high side service ports.
2. Recover the refrigerant from the refrigerant system.

CAUTION: Only the low side service port valve core can be replaced. Do not attempt to replace the valve core for the high side service port. If the high side service port valve core requires service, replacement of the A/C liquid line is required.

3. Using a standard Schrader-type valve core tool, remove the valve core from the low side service port only.
4. Install a plug in or tape over the opened low side service port.

INSTALLATION
1. Lubricate the A/C service port valve core with clean refrigerant oil prior to installation. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
2. Remove the tape or plug from the low side service port.

CAUTION: Only the low side service port valve core can be replaced. Do not attempt to replace the valve core for the high side service port. If the high side service port valve core requires service, replacement of the A/C liquid line is required.

3. Using a standard Schrader-type valve core tool, install and tighten the replacement valve core into the low side service port.

CAUTION: A valve core that is not fully seated in the A/C service port can result in damage to the valve during refrigerant system evacuation and charge. Such damage may result in a loss of system refrigerant while uncoupling the charge adapters.

4. Evacuate the refrigerant system.
5. Charge the refrigerant system.
6. Install the protective caps onto the A/C service ports.