Chevy EGR Valve experience.... - Saab General Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 4/9 Saab Owners' Convention Day Pass Raffle | 3/26 M Car Covers (by State of Nine)
[General | Members | C900 | 9000 | NG900 & OG93 | 93 | 95 | NG95 | 99 | Sonett | Vintage Models | Clubs | Other Cars | FAQs | Gifts | Member Photo Galleries | Member Directory | Classifieds | Manuals | *Buddy Registry | *Mileage Registry | Polls | What's New | Raffle | Photo of the Month | Sponsors]

General Bulletin Board
[Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only

[Main General Bulletin Board | BBFAQ | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Chevy EGR Valve experience....
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by Roger (more from Roger) on Tue, 14 Sep 2004 09:06:08 Share Post by Email
In Reply to: EGR Valve?, Justin34, Tue, 14 Sep 2004 07:41:51
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

I own a '95 Chevy Astro with the 4.3 litre V6 engine and previously owned a '92 Chevy Blazer with same engine. The EGR (exhaust gas recirculation) valve on this particular vintage of this particular engine is prone to blockage by carbon deposits. I don't know about Honda engines.

The EGR allows exhaust gasses to be admitted into the intake system to be reburned for lower emissions. Typically the valve is closed at idle speeds since the engine can't tolerate much recirculaiton at this point, and opens at higher engine speeds. Because of this, a partially blocked valve can sometimes be cleared by getting the vehicle up to highway speeds where the obstruction will flow into the intake system and be consumed. A piece of carbon smaller than the head of a straight pin can cause huge problems with engine smoothness & driveability at idle speeds.

The electronic EGR on my van engine costs $130+. A vacuum operated EGR can cost as little as $15. I have done this so often that I can now remove the EGR, clean it of obstrucitons and carbon, and reinstall it in less than 20 minutes when the engine is HOT! Typically I don't even need to replace the gasket (a $2.50 part) so my D-I-Y repair is free.

The EGR is for emissions only and should be covered by the longer emissions warranty mandated by the EPA.

posted by 198.208.22...

Posts in this Thread:
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup

No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.

Name: Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.

Subject:

Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
 Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Saabnet.com Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).

Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).
Optional Link: (e.g. http://www.saabnet.com/)
Link Title: (Optional)
Optional Photo/Image Link: (e.g. http://www.saabnet.com/img.jpg)
Photo/Image to Upload: (Please be patient while file uploads)



StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

Random Saabnet.com Member Gallery Photos (Click Image)
This is a moderated bulletin board - Posting is a privilege, not a right. Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY. Classifieds are to be listed in The Saab Network Classifieds pages. This is a problem solving forum for over 250,000 Saab owners, so expect to see problems discussed here even though our cars are generally very reliable. This is not an anything goes type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the Saabnet.com Mission and Purpose Page. Please remember that you are not anonymous. Site Contact | Site Donations | Other Sites by SP - Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot


Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all the Site Membership Benefits!