Poor Idle (sometimes dies) - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Ranger Forum Forum for discussion of the Ford Ranger.

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 01-24-13, 08:58 AM Thread Starter
Registered User
 
Join Date: Jan 2013
Posts: 1
Poor Idle (sometimes dies)

So when I go to stop or am stopped, my idle drops very low, bounces and sometimes dies. I have changed the IAC and the MAF. I have not reset the PCM though. I haven't really noticed anything with the hoses, but I haven't really inspected thoroughly. Any ideas?

jpfoster is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 01-24-13, 11:43 AM
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 10,311
Re: Poor Idle (sometimes dies)

What year, engine, etc. Autozone will pull codes for free. Don't reset it before you go.

Bert
Bert is offline  
post #3 of 4 (permalink) Old 01-25-13, 03:32 AM
Registered User
 
Join Date: Jul 2012
Posts: 41
Re: Poor Idle (sometimes dies)

The problem you are describing in most cases is a bad IAC (idle air control) valve and or a dirty throttle plate and throttle body. Since you changed the IAC valve, the problem could be with throttle plate. You can clean it with a good brand of carb cleaner. If cleaning doesn't work, then run this test on the IAC. Check Idle Air Control (IAC) solenoid function - backprobe the WT/LB wire of the Idle Air Control (IAC) solenoid with a jumper wire. With the engine idling, momentarily ground the other end of the jumper and the idle should flair high. Inspect the throttle bore for gum and varnish deposits. Hope this helps.
Jeff Collision is offline  
post #4 of 4 (permalink) Old 01-26-13, 09:20 AM
Dazed and Confused
 
CatSkinner's Avatar
 
Join Date: May 2012
Location: Upstate New York
Posts: 5,855
Re: Poor Idle (sometimes dies)

Depending on year, make, and model, you'll have some variations, but the following link will take you trough throttle maintenance. Make sure you've taken care of any vacuum leaks, first.
Ford Mustang IAC IAB - Solving your idle problems

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
CatSkinner is offline  
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford Ranger Forum


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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