idle problems - Off-Road Forums & Discussion Groups
GM Small Trucks & SUV's All discussion of S-Class Trucks and SUV's

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 05-28-2004, 10:48 PM
tcossey33
Guest
 
Posts: n/a
idle problems

My sister has a 95 chevy blazer 4.3L and it likes to stall at idle . We have recently replaced spark plugs, gas pressure regulator( which solved the prolblem of gas leaking into the oil), idle air control( smoothed out the idle somewhat), oxygen sensor and pcm. Any ideas what else could be goin wrong with it to make it run rough and stall at idle. Thanks for your help.
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 05-30-2004, 01:50 AM
kodiac454
Guest
 
Posts: n/a
Re: idle problems

Check the EGR valve. This believe it or not controls the idle on the GM 4.3s. It is more than likely partialy stuck open causing because of carbon. This is more than likely what is causing the stall. Have it checked out first before replacing it because these valves run around the $300 dollar price range.
Good Luck
post #3 of (permalink) Old 05-31-2004, 08:39 AM
 
Join Date: May 2003
Posts: 244
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: idle problems

If the EGR valve is stuck, I've heard you can clean it out and reuse it for a while. This is a good way of making sure if the problem is fixed.

The EGR is a ball valve, a ball inside a cylinder which when push one way will allow air/fluid to flow through, but if the ball is pushed/pulled the other way, it will block the opening.
blabhern is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome