07 Chevy HHR Low Side Service Port

Friendly format provided to inquire about automotive a/c systems.
Archived Forum

Moderators: bohica2xo, Tim, Dougflas, HECAT

coolperk
Posts: 2
Joined: Sun Mar 19, 2017 8:55 am

07 Chevy HHR Low Side Service Port

Postby coolperk » Sun Mar 19, 2017 9:18 am

I have a leak at the low side service port. I have tried valve cores from 3 different sources. I tried tightening the valve core to spec, under tightening, over tightening, still leaks. Core appears centered, not cross threaded or anything. The port is part of the hose-line. Is there any tricks or tips I can try before I replace the hose-line. I have the tool to change the core without losing refrigerant but after 2 weeks it's all leaked out. Thanks for any tips.
Dougflas
Posts: 96
Joined: Mon Apr 18, 2016 6:10 pm

Re: 07 Chevy HHR Low Side Service Port

Postby Dougflas » Tue Mar 21, 2017 1:59 am

The valve core is actually the secondary seal. The cap is the primary seal. Are your caps in place? do they have a rubber seal in them?
coolperk
Posts: 2
Joined: Sun Mar 19, 2017 8:55 am

Re: 07 Chevy HHR Low Side Service Port

Postby coolperk » Wed Mar 22, 2017 8:16 pm

Yes, I've replaced the cap and it came with an 0-ring. The caps are made of plastic like most cars. My leak detector shows a leak on the low side port. The high side shows no leak.
GM Tech
Posts: 98
Joined: Fri Apr 22, 2016 7:22 am

Re: 07 Chevy HHR Low Side Service Port

Postby GM Tech » Thu Mar 23, 2017 5:30 am

Does it show the leak with the cap on? To test my leak detector- I take the cap off.

Return to “Automotive Air Conditioning Forum”