Automotive Air Conditioning Information Forum (Archives)

Koolman on Tue August 21, 2007 12:25 AM

Year: 1994
Make: Ford
Model: Mustang
Engine Size: 302 V8
Refrigerant Type: R134a

Can anyone tell me how to replace the ball type high and low service port valves? Can i use an adjustable wrench?"
More importantly, Anyone know if these can be purchased (on ACKits, local parts store, or elsewhere)? Having trouble even finding them online, yet alone in the local Auto parts stores

I purchased a High & Low-side R134a Service port leak repair kit which contained a install tool and two small silver schrader screw-in type valves. Unfortunately, i noticed that the high and low ports actually on my car have what appears to be a black (rubber maybe) check ball in the ports (instead of a silver screw-in valve). Looks like the port housing itself is threaded into the hose fitting and can be removed, however i noticed that none of my wrenches (metric or standard) fit the fitting size.

Thanks for any help, insight.

Edited: Tue August 21, 2007 at 2:07 AM by Koolman

boatmoter on Wed August 22, 2007 8:41 PM

Im pretty sure you have to replace the lines,I believe those are non servicable..

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Glenn //

Chick on Wed August 22, 2007 8:56 PM

You can replace the service port on those with the teflon ball..I don't have the Ford part number handy, but any dealer should be able to give it to you..To take the old one off, (make sure you have the new one first..) just use a plyers or vice grips as you don't care if you damage the old one.. Then use a small adjustable wrench when you put the new one on, or ask the guys at Ackits.com if they have the service port wrench available..it's a special socket for replacing the service ports.. I'll try to get the part number for you..

Opps, I forgot that was the one that stands up by the condenser..You do need to change the line..Below is a pic of it with the AcDelco part number..Hope this helps..


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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Edited: Wed August 22, 2007 at 8:59 PM by Chick

Chick on Wed August 22, 2007 9:00 PM

AcDelco part number is 15-31356 It didn't show in the pic.....

I'll try to check into this a little further tomorrow, as it "may" be replacable..Or at least one of them... Sorry, can't do much more from home..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Edited: Wed August 22, 2007 at 9:04 PM by Chick

Koolman on Wed August 22, 2007 10:29 PM

Chick: Thanks for the helpful info on this. If you find out for sure that would be great. They appear to be threaded in and removeable. Although they may not have been leaking from the ports, the line has been sitting out of the car for a while and would be safe and replace them prior to charging up the system.

Toenail on Fri August 24, 2012 11:11 AM

I replaced the plastic caps on my Tahoe with brass caps that have an O-ring. Problem solved. No more expensive replacing of valves.

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Toenail

Bob on Fri August 24, 2012 12:41 PM

Was this for R134a or R12? Where did you get them?