Posted by Whizkidkyus on April 17, 2011 at 17:26:40 from (64.130.158.6):
Sorry ,Long Post !
I have a 1991 GMC S-15 Snoma Pickup with a 2.5 4 Tech. engine and a 5 speed transmission . No air conditioning . The check engine light has been comming on and going off intermitently over the last couple of years . I finally bought a Actron OBD1 Code Scanner from Autozone ( the kind that makes the check engine light flash ) . See my post on Tool Talk about the testers . I tested the truck with it today and got a code 32 which, according to the book that came with the tester ,code 32 means :
Exhaust gas recirculation ( EGR ) valve diagnostic switch - closed during engine start up or open when EGR flow requested by ECM
OR
EGR/EVRV
I don't remember these trucks ( especially these model years ) having a BARO circuit . Do they ? Also, is there anyway to test the EGR valve without just putting a new one on it and hoping that it fixes it ? Was there a problem with these valves on these model trucks ? The motor is not the original motor , but just like it . Maybe a yer or two difference , but the problem did start until a couple years later also the truck has been wrecked and rebuilt ( new frame and doghouse ) and the problem started about a year or two later . The motor dosen't act up when the light comes on . It keeps on running fine. If I'm not mistaken the EGR valve runs by vacuumn .
P.S. The book defined the light comming on and going off as an intermittent problem meaning that the computer saw a problem ,but it went away and the code stayed in the computers memory.
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 - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[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.
