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Discussion Starter #1
anyone know of an easily accessable parts fiche? I need a very specific part (the high side service port valve that screws into the compressor line/block on the compressor) and cannot find a P/N anywhere..
 

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the valve core itself? if so, and its bad your gonna have to pull it out anyway. So pull it out and check local parts places. I know most Pep boys keep a box of misc a/c o-rings, valve cores, seals behind the parts counter
 

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Schrader valve.........
 

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Discussion Starter #4
yeah, the actual valve assy you can unscrew from the compressor lines.. the O-ring that seals the pintle to the housing is shot,, Parts stores dont have anything (of course all they do is look in their computers)
 

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Discussion Starter #5 (Edited)
its not unscrewable from the valve body. if you all need pictures I can provide.

Update- found the PN - went to ACdelco's website and searched through their parts catalog /w pictures and such.. verified on an independent burban forum.. 15-5438 - called an evap tube service valve
 

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You may wind up replacing the complete line.
 

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Real easy to diagnose, since you so conveniently provided all the information on your truck, eh?

Be easier to help you out, if we knew which way you came in..............
 

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Discussion Starter #8
yeah yeah i know i forgot.. its a 96..

no, the valve body is removeable from the line, but the pintle is not removeable from the body.
 

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I was mainly interested in R12 or R134 - either way, the fittings and o'rings are avilable from pepboys, 'zone, chief, etc black for 12, blue for 134, also Mr Goodparts
 

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Discussion Starter #10
I went to the local pepboys,autozone, and checker... none carried anything but the generic R12 retrofit adaptors. they had no 134 fittings of any kind.
 

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you might check an AC parts dealer like..

Johnstone's Supply (spell?) that's where I got my adapters, even guages...
 

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Another member passed this on as being the correct p\n - GM Delco 52458184 hi-side pressure port.
 
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