Replace a leaking AC Schrader Valve Core Yourself

Replace a Leaking AC Schrader valve core without discharging refrigerant

A valve core removal kit has fittings for low and high pressure ports

An AC Schrader valve can get clogged with debris and cause the loss of refrigerant. The only fix is to replace the valve. You can replace a leaking AC Schrader valve yourself without having to evacuate the entire system.

The AC Schrader valve core removal kit shown here allows you to replace the valve cores on both the high and low ports of your car’s AC system.

You’ll need the kit and replacement valve cores. You can remove the old one and take it to any auto parts store to match it up with a replacement. Or you can buy an assortment kit and have everything you need, eliminating the need to run to the store.

How to remove valve core — step by step

1) Close the valve on the tool so it’s perpendicular to the tool.
2) Using the quick connect, lift the ring and push down on the AC port. Then release the locking ring.
3) With the valve still closed, insert the removal shaft down into the tool until it touches the valve.
4) Open the valve and push the removal tool down onto the flats of the valve core. Unscrew the valve core until it disengages. Then lift up the removal tool.
5) Close the valve to block off refrigerant.
6) Swap in a new valve core to the removal tool and reverse the process

© 2022 Rick Muscoplat