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: 104
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.
DarrylS
Posts: 14
Joined: Sat Apr 15, 2017 3:00 am

Re: 07 Chevy HHR Low Side Service Port

Postby DarrylS » Sat Apr 15, 2017 4:25 am

I like to use a product called NYLOG whenever I install any AC O-rings / schrader valves / service port seals or other parts. The stuff is amazing GIT U SUM I keep both red and blue on hand. The red is for R134A and R410 types systems and the blue is typically used for the older R22 and R12

Return to “Automotive Air Conditioning Forum”