Service Port Valve Core: Description
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
Refrigerant system service ports are used to recover, recycle, evacuate, charge and test the A/C refrigerant system. See Fig 1. Unique sizes are used on the two service ports for the R-134a refrigerant system to ensure the system is not accidentally contaminated with R-12 refrigerant or by service equipment used for R-12 refrigerant.
The high-side service port is located on the A/C discharge line near the A/C condenser. The low-side service port is located on the A/C liquid line near the air filter housing. Both the high-side and low-side A/C service port valve cores are serviceable.
NOTE:
The protective cap aids in service port sealing and helps protects the refrigerant system from contamination. Remember to always reinstall the protective cap onto the service port when refrigerant system service is complete.
Each of the service ports has a threaded plastic protective cap installed over it from the factory. The service port caps are serviceable items.
| 1 - LOW-SIDE SERVICE PORT |
| 2 - HIGH-SIDE SERVICE PORT |