Tractor Talk Discussion Board |
Re: Off topic, Chevy truck help!
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Lil-Farmer on January 20, 2005 at 14:33:47 from (205.246.142.111):
In Reply to: Off topic, Chevy truck help! posted by knauffj on January 20, 2005 at 12:21:32:
Put a vacuum gauge on the power brake port. When cranking or at idle (I know, it is hard to make it idle) you should have a smooth vacuum signal, 10, 11 inches at crank and 18, 19 at idle. We had a 94 that sat at a dealership for over a month while they fiddled with it; ended up with them telling us the motor was junk and for 3500.00 they could install a new one. Any way to make along story short, the engine had a broken intake valve spring allowing compression pressure into the manifold. Found the vacuum problem with the gauge, it was all over the place. The TBI really runs off of two main signals, vacuum signal and throttle position sensor. Low vacuum tells the ecm that the engine is under load and signals it to put in mucho fuel. The injectors quitting, I would agree with others; oil pressure switch or pump relay.
Follow Ups:
Home
| Forums
Today's Featured Article -
The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co. 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. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|