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95 GMC Valve Leaking

jed_99 on Wed July 22, 2009 5:50 PM User is offline

Year: 1995
Make: GMC
Model: TC10753
Engine Size: 5.7l
Refrigerant Type: R134a

Recently got a low mileage (about 80000 miles) 95, but AC wasn't leaking. I know a bit about cars, but wasn't going to dive into this. The garage I took it too added a combination dye/sealer and added some R134a. Turns out the service port on the AC line going from the compressor to the accumulator is leaking.

From my partsman days, from GM, this is only replaceable by replacing the entire line assembly. Does the aftermarket have something to allow me to replace only that leaking valve? Secondly, what effect will this dye/sealer have on the system, and last, should I have them put in any PAGS when they refill with R134A?

Cheers!

daman on Wed July 22, 2009 7:31 PM User is offlineView users profile

what port is leaking? they can be changed out...without replacing the line.

dye has no bad effect on the system it can live there without issues , the sealer you should have done with out,thqt stuff is crap no good.

-------------------------
'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

Edited: Wed July 22, 2009 at 7:33 PM by daman

Cussboy on Wed July 22, 2009 8:09 PM User is offline

Have you tried a good-quality cap? The rubber seal in the cap is a valuable part of the system, lots of service valves leak a little.

jed_99 on Fri July 24, 2009 1:42 PM User is offline

The valve on the high pressure side, sort of looks like a Schrader. Its leaking pretty good as after they refilled the system, it only lasted about 2 wks - when I took the cap off the port I got a pretty good Pfft, more than I think I should have.

Is the valve a replaceable part, and if so, can I get this from ACKits?

daman on Fri July 24, 2009 1:52 PM User is offlineView users profile

Yes the valve allone can be replaced(turns out),and yes ACkits has them or an auto parts should have it too if you need it ASAP.

-------------------------
'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

jed_99 on Fri July 24, 2009 2:04 PM User is offline

I'm in Canada, and no one I've spoken to has heard of replacing just the valve, they all want to replace the entire line. Not what I was hoping for, so I came here.

As to the combination dye/sealer that was put in, anything I can do now that its been put in? And the tech I took it to said I didn't have add any PAGS - (compressor was not replaced, only a refill of R134a). I wasn't certain of this being accurate, as I was only a partsguy.

daman on Fri July 24, 2009 4:00 PM User is offlineView users profile

Yes them valves can be just replaced NOT the whole line, all my GM's has always been replaceable, check with Tim he should be able to set you up.

to get the sealer out the whole system would need to be flushed,you'll probably be all right hopefully
they didn't put to many oz's in? the dye is fine does not hury anything.

no if nothing was replaced and no big leak blew open system shouldn't need any oil.

-------------------------
'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

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