I have a 98 chevy silverado Z-71 my a/c is leaking out of both ports, there is no...

[reborn2363]

...schrader valve in high side? There is not a valve core stem in the high side, how do I stop it from leaking. I looked down in side just looks like a flap that goes up down. Please help

 

[Dr. Car Guy]

You need to change the fittings. They screw into the metal lines.