General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.

IAC valve

 
 
 
 
  #1  
Old 08-18-2006, 04:13 PM
Starting Member
Thread Starter
Join Date: Apr 2006
Location: Rock Island, IL
Posts: 162
Mbastet99 is an unknown quantity at this point
Default IAC valve

OK, so I'm still trying to figure out the mystery behind my bad idle, which is now getting worse to the point of dying if I have to sit in traffic too long. Am wondering about the IAC valve, since I was told to check and see what happens when I turn on the A/C....sure enough, the idle does not compensate and dies. Blazer runs great when driving, it's just the idle that is driving me crazy. Is it worth getting it replaced to see if that is the problem? Or are there any other ways to check and see before taking it to my mechanic if that is the culprit? Can't find any vacuum leaks, and have checked it MANY times. No codes or trouble lights so I have nothing to go on....Thanks!
 
  #2  
Old 08-18-2006, 06:02 PM
Dory's Avatar
Retired Super Moderator
Join Date: Apr 2006
Location: The spec between the moon and the sun
Posts: 2,094
Dory is a jewel in the roughDory is a jewel in the roughDory is a jewel in the rough
Default RE: IAC valve

If I remember correctly from one of my other chevys.. that IAC valve is NOT expensive and if its never been changed then it might just be your culpret! I would change it out.. .see if it helps. you can always return it if not. and i've change one, was easy enough.
 
  #3  
Old 08-18-2006, 08:29 PM
Starting Member
Thread Starter
Join Date: Apr 2006
Location: Rock Island, IL
Posts: 162
Mbastet99 is an unknown quantity at this point
Default RE: IAC valve

It's about $60 at AZ, but that's far cheaper than most of the other things that I've tried replacing! Think I'll give that a try unless anyone has a better suggestion...Thanks Dory![sm=thanx.gif]
 
  #4  
Old 08-18-2006, 11:11 PM
swartlkk's Avatar
Administrator
Join Date: May 2005
Location: Waterloo, NY
Posts: 40,788
swartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond repute
Default RE: IAC valve

You should try pulling the TB apart and cleaning everything first. At most, you may need a new tb gasket at that point. If you still have an idle problem after that, then possibly replace the IAC valve.
 
  #5  
Old 08-19-2006, 01:21 PM
Starting Member
Thread Starter
Join Date: Apr 2006
Location: Rock Island, IL
Posts: 162
Mbastet99 is an unknown quantity at this point
Default RE: IAC valve

Thanks for the info. If it ever decides to NOT rain on the weekend I could work on this!!
 
  #6  
Old 08-25-2006, 09:31 PM
Starting Member
Thread Starter
Join Date: Apr 2006
Location: Rock Island, IL
Posts: 162
Mbastet99 is an unknown quantity at this point
Default RE: IAC valve

Thanks for all the help....replaced the air filter, PCV valve, and took off the IAC and cleaned it good (it was coated with carbon) and now the Blazer runs MUCH better!! Glad you guys are here to help us non-car people out....[sm=bounceybounce.gif]
 
  #7  
Old 08-25-2006, 09:55 PM
swartlkk's Avatar
Administrator
Join Date: May 2005
Location: Waterloo, NY
Posts: 40,788
swartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond repute
Default RE: IAC valve

Hey not a problem! Glad we could be here for you!!!
 
 
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JHZR2
2nd Gen S-series (1995-2005) Tech
11
05-24-2012 04:15 PM
ff_malone
Engine & Transmission
5
01-03-2010 05:58 PM
bbell
2nd Gen S-series (1995-2005) Tech
1
06-09-2009 07:58 PM
ron36535
2nd Gen S-series (1995-2005) Tech
8
08-13-2008 12:31 PM
ron36535
2nd Gen S-series (1995-2005) Tech
8
01-23-2006 12:06 AM


Thread Tools
Search this Thread
Quick Reply: IAC valve


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.