Automotive Air Conditioning Information Forum (Archives)

Provided by www.ACkits.com

We've updated our forums!
Click here to visit the new forum

Archive Home

Search Auto AC Forum Archives

lumina high side port leak

mektek on Mon September 15, 2008 12:38 PM User is offline

Year: 99
Make: chev
Model: lumina
Engine Size: 3.8
Refrigerant Type: 134

I have a leak out of the high side service port. There's no valve visible inside, just a black rubber plug. How is that supposed to work?

GM Tech on Mon September 15, 2008 1:18 PM User is offline

A good quality cap with a good rubber insert will seal that port- as designed to- if the port is just bubbling tad-

-------------------------
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

mektek on Mon September 15, 2008 3:22 PM User is offline

That's the easy way
I'm going to be opening the system to replace the compressor anyway, so I'l like to do it the "right" way. Is there one?

mk378 on Mon September 15, 2008 3:26 PM User is offline

The ones with the rubber ball or plug, you'd have to replace the whole fitting. It unscrews from the tapped part welded to the line.

HECAT on Tue September 16, 2008 5:57 AM User is offline

Quote
Originally posted by: mektek
That's the easy way

I'm going to be opening the system to replace the compressor anyway, so I'l like to do it the "right" way. Is there one?

If it is a major leak, you can replace the service port. All spring loaded "valve on seat" devices will have acceptable leakage. They sometimes do not reseat properly and can be affected by very small debris, poor design, cheap materials, etc. Be sure to use the second part of the device that is often overlooked, to complete the seal. The cap w/ o-ring is the easy and right way.

-------------------------


HECAT: www.hecatinc.com You support the Forum when you consider www.ackits.com for your a/c parts.

FLUSHING TECHNICAL PAPER vs2.pdf 

cc61 on Tue September 16, 2008 4:12 PM User is offline

ac delco # 15-5438 GM# 52458184 i typically stock around 5 to 10 of these at any given time ! I replace them almost always when i have a system open that uses them !! nothing worse than finishing a job and taking the highside off (after its equalized) and having 1 of those things to leak!!

Back to Automotive Air Conditioning Forum

We've updated our forums!
Click here to visit the new forum

Archive Home

Copyright © 2016 Arizona Mobile Air Inc.