Posted by jdemaris on December 19, 2007 at 06:04:56 from (67.142.130.16):
In Reply to: OT, GMC Question posted by Red Dave on December 19, 2007 at 04:34:12:
I had two of them do the same thing. Both as the 120-140K mile mark. A 95 and a 96, both with 4.3 VIN code "W" have the new injection systems at that time - NOT TBI. It is known for all-of-a-sudden no-starts with no previous warning signs. The check valve in the central-port-injection unit needs 43 pounds of fuel pressure to open. The fuel pump in the tank is set at 57 to 61 PSI. If cranking fuel pressure drops below 57 PSI, it usually results in a no-start. It's a Go or NO-go situation. Either it starts fine, or doesn't even try. And, it's hard to diagnose since these pressures are so close to each other. A drop in just one PSI can change a good starter - to a no starter. Most later 1995s have CPI, and most 1996s have CSFI. The only big difference with the latter is - there are more indiviual parts available, and the fuel pressure runs a little higher - 60 to 66 PSI with the key on, engine not running. You need to pull the engine-house off, and stick a pressure gauge on the Schrader valve on the engine. It is put there just for this test. If you don't have the fitting kit, an older air conditional gauge connection for Freon will fit.
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 - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
... [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.
