A/C Leak

[LOUDSHO92]

Well a couple months ago I finally got my A/C fixed on my SHO after 5yrs of it not running due to the blend door. It only cost $900 for the blend door, a new pipe and to check everything as well as a recharge. Well it worked for around a month or so then it stopped working. I told them and they said to bring it in.

I noticed that at the schrader valve had a lot of moister around it and I mentioned it to them that I saw that. They couldnt find a leak, thinking though that either it was the valve or something under the dash (ek!). So they said they replaced the valve and recharged it. It lasted a little over a weak. When I looked at the vlave later it had moiser as well as green stuff in it as well.

Could the valve be my problem or do they need to go under the dash? Any ideas?

 

[Mike Kelly]

Shrader valves will leak. I had the same problem, the insert was tight and still leaked. If i remember correctly the insert has a seal material or a o'ring on it. If i'm incorrect somebody please speak up. I got lucky and replaced the insert and it stopped leaking down. Mike

 

[etc1006]

Something else, I used to do HVAC. - I usually replace the crappy plastic caps with nice brass gasketed ones. Will help to keep a leak from ruining a new A/C job. Most of the time they are flare caps.

 

[SHOtimer]

Matt, did they replace any of the other O-rings in the system. I found when I replaced my AC system last year that many of my O-rings were very dried out. I'm sure that yours are also since yours has been on the road a few more years than mine. The O-rings only cost a few cents and are very simple to replace when the system is discharged. When they dry out and shrink they can form slow hard to find leaks. That would be my suspicion. Also, did they use a "sniffer" - my AC shop had this thing that sniffed for leaks and beeped if it detected any leakage. It is much more precise than using a dye.

Also, on that schrader valve - when the sytem is charged/recharged the valve gets wet and will stay wet with oil for a time even though it is not leaking.

Good luck.

Doug

 

[93MTXSHO_STUD]

you could hook a vaccum to it and see if it holds the vaccum (at least an 30 minutes). That is if you ever have to discharge the system.