|
Tractor Talk Discussion Board |
92 GMC Fails Emmissions
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Farmer Paul in Ontario on July 06, 2005 at 05:57:01 from (65.93.41.154):
My old truck has failed emmissions twice now and is giving me fits. The truck is 1/2 ton 5 litre ( 305 ) with TBI. It passed at idle; but at speed the HC is over the limit of 79ppm my reading is 110 ppm. I have changed plugs, wires,cap ,rotor, coil, 02 sensor, and the egr solenoid,air cleaner ,fuel filter,and the timing is bang on. The truck will surge when travelling at low speed, it will also do this at highway speed from time to time. But it is itermitent. My dealer tells me if i have done all these thing it should pass, well it doesn't. I tested the EGR valve by pulling the vac line an it runs smooth, apply vac to the valve and I can stall the engine. The only other things I can think of are injectors and fuel pump ( dealer say if the pump is weak it would not even run ). A friend says it could even be caused by a faulty ECM. Any help would be appeciated.
Follow Ups:
Home
| Forums
| Order Support
Today's Featured Article -
Product Review: JB Weld - by Staff. JB Weld is basically an epoxy glue that does an exceptionally good job of bonding to cast iron and steel along with several other materials. As I mentioned, it is so common that I have yet to buy a tractor that did not have JB Weld used somewhere. It is sometimes used so well you can't tell its there and other times used as a sloppy quick fix. Finding where and how it can be used correctly is key to whether you are using it as an "inelegant hack" or an integral solution to difficult and expens
... [Read Article]
Latest Ad:
WANTED Front grille/nose assembly for Massey Ferguson 1160 (also fits 1180 & 1190). Headlight-mount section. AGCO Grille 3706022M91 (supersedes 3705942M91), cover 3705494M1/M2, holders 3705501M91/3711158M92. New/NOS/good used OK. Jonesboro, AR - will pay shipping. Photo appreciated. Thanks
[More Ads]
Copyright © 1997-2026 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 |
|
