High side AC port issue

[03catburban]

That fittings screws into the line you have to change the fitting. And that's the OE ball style and not a black cap that you was thinking is removable

You can support her on line and use a adjustable wrench to change the fitting

 

[Jobi-Wan Kenobi]

So was doing a little research on the issue at hand. Turns out that the OE ball valve is a one time thing in that it fails after having gauges hooked up. Makes sense because I had gauged on a couple days ago to get an idea what system pressures were doing because the compressor was cycling so the system at least had refrigerant in it. Now today I just went to do deeper troubleshooting and had the leak issue. And turns out what I brought home is another port with a ball valve. Dorman does make a port with a replaceable Schrader valve though so this one I want to return.

 

[RAMurphy]

Like @OR VietVet - I've only replaced shrader valves and/or lines. Never the actual port. IMO it's just easier to replace the line. But since the system is already opened up you really should replace the accumulator/dryer at the same time.

 

[Jobi-Wan Kenobi]

@RAMurphy Is it best to go with OEM parts for these? I can find what looks to be the line I need on Rock Auto but the part number doesn't match what I'm finding in a GM parts breakdown.

 

[RAMurphy]

@RAMurphy Is it best to go with OEM parts for these? I can find what looks to be the line I need on Rock Auto but the part number doesn't match what I'm finding in a GM parts breakdown.

@Jobi-Wan Kenobi The short answer is I try to use OEM when I can. However, I have had great luck with both Denso and Four Seasons products. My current A/C compressor on my 2002 Tahoe is a Denso and has been on my baby longer than the original compressor. When I fixed my daughter's AC system (bad condenser) I used four seasons parts. Hope this helps.

 

[OR VietVet]

What @RAMurphy said.

 

[clandr1]

In March I replaced the service port with this part. It works great and you'll have a schrader valve rather than a check ball. You can hold a wrench on the flat parts on the line below the service port for removal and installation. Just make sure you lubricate the new o-ring with some PAG oil before installation.

https://www.amazon.com/gp/product/B00E58M8J4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[RAMurphy]

In March I replaced the service port with this part. It works great and you'll have a schrader valve rather than a check ball. You can hold a wrench on the flat parts on the line below the service port for removal and installation. Just make sure you lubricate the new o-ring with some PAG oil before installation.

https://www.amazon.com/gp/product/B00E58M8J4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Pretty neat, didn't know this part existed.

 

[Jobi-Wan Kenobi]

I got the accumulator and the line swapped out, and changed that stupid ball valve out for a port with a Schrader valve. The system is maintaining vacuum so thats good. I went to charge it tonight and found out I dont have enough refrigerant here and then later realized that I need to add oil to the system.

*face palm*

Good thing I didn't have enough refrigerant here. Now I just need to figure out how to add oil. I found a video earlier showing it can be sucked in via vacuum through the high side port.

 

[clandr1]

Maybe this will help:

How to add compressor oil to an AC system that's already charged?

I recently fixed a leak in my car's AC system. Before I charged the system with fresh refrigerant after a complete evacuation, I almost forgot to add some PAG oil to the system. Which leads me to my

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