Posted by jdemaris on July 23, 2008 at 07:04:02 from (72.171.0.141):
In Reply to: Re: auto a/c posted by Brian Jasper co. Ia on July 23, 2008 at 05:06:57:
Why would pulling the grille out make changing the orifice tube easier?
I put a new orifice tube, compressor, dryer and condensor in my 91 Suburban - and the orifice tube was in the line going to the evaporator on the firewall - nowhere near the front grille.
But - maybe his 92 truck is the new body style? I kind of lost track since GM mixed up the body styles late 80s and early 90s. My 91 Suburban is "old body style", and I know 1/2 trucks had "new body style" starting around 88. And - I have no idea if it makes any difference in the AC system.
When I fixed mine last summer- and retrofitted to 134A - it read 40 PSI on the low side and 250 PSI on the high side - on an 80 degree F day (humidity unknown). It worked fine then and still does - blows 48 F air at 80 F degrees air temps. On some real hot days I've seen the high side go to 300 PSI.
I do know the pressure readings in themselves can be misleading unless put into proper context - and often a thermocouple temp reading of discharge line is needed along with them.
Every GM I ever had - with a trashed compressor - had chronic orifice tube and screen plugging problems until I replaced the condensor - since it's near impossible to ever get it flushed out properly.
Seems some shops now put a filter on condensors - to stop the debris from travelling through the system.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Product Review: Black Tire Paint - by Staff. I have been fortunate in that two of my tractors have had rear tires that were in great shape when I bought the tractor. My model "H" even had the old style fronts with plenty of tread. My "L" fronts were mismatched Sears Guardsman snow tires, which I promptly tossed. Well, although these tires were in good shape as far as tread was concerned, they looked real sad. All were flat, but new tubes fixed that. In addition to years and years of scuffing and fading, they had paint splattered on
... [Read Article]
Latest Ad:
2022 John Deere 5045E, 4wd, front end loader and 3rd function with grapple. 120 hrs, 55k new, must sell
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
