Service Gauge Port Valves
WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The high-pressure service gauge port valve is located on the condenser-to-evaporator line.
The low-pressure service gauge port valve is located on the evaporator outlet portion of the TXV manifold and tube assembly.
| Item | Torque | Description |
|---|---|---|
| 1 | 0.8 Nm (7 lb-in) | Low-pressure service gauge port valve cap |
| 2 | - | Low-pressure service gauge port valve |
| 3 | 2.26 Nm (20 lb-in) | Low-pressure Schrader-type valve |
| 4 | 3.4 Nm (30 lb-in) | High-pressure Schrader-type valve |
| 5 | - | High-pressure service gauge port valve |
| 6 | 0.8 Nm (7 lb-in) | High-pressure service gauge port valve cap |
The fitting is an integral part of the refrigeration line or component.
- Special couplings are required for both the high-side and low-side service gauge ports.
- A very small amount of leakage around the Schrader-type valve with the service gauge port valve cap removed is considered normal. Install a new Schrader-type valve core if the seal leaks excessively.
- The A/C service gauge port valve caps are used as primary seals in the refrigerant system to prevent leakage through the Schrader-type valves from reaching the atmosphere. Always install and tighten the A/C service gauge port valve caps to the correct torque after they are removed.