Need help diagnosing problem - Ranger-Forums - The Ultimate Ford Ranger Resource

4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Need help diagnosing problem

Reply

 
 
 
  #1  
Old 08-22-2009
David N's Avatar
Member
Thread Starter
Join Date: Dec 2008
Location: Williamston, NC
Posts: 1,060
Need help diagnosing problem

Okay, so the '03 in my signature is still acting a little wierd. It was throwing codes left and right, and I fixed the little vaccum leak underneath the radiator hose, and it stopped throwing codes, but now, when I start to slow down from a 35+ mph roll, if I completely stop, the truck will idle down to about 250 rpm and almost cut off. And it feels like it wants to jump forward when I stop. Anyone have any ideas? Could this be the torque converter not unlocking like its supposed to?
 
Reply With Quote
  #2  
Old 08-22-2009
brianjwilson's Avatar
Member
Join Date: Nov 2006
Location: Hillsboro, Oregon
Posts: 3,650
Idle air control valve?
 
Reply With Quote
  #3  
Old 08-22-2009
red_fx2's Avatar
Member
Join Date: Apr 2005
Location: lakeland, fl
Posts: 32
ya it could be the tq convter going out.
 
Reply With Quote
  #4  
Old 08-22-2009
David N's Avatar
Member
Thread Starter
Join Date: Dec 2008
Location: Williamston, NC
Posts: 1,060
How would I check the idle air valve Brian? Ill probably get my dad to help me look at it. But if it does turn out to the torque converter, the truck only has 105k miles on it. Why would it be going out? I do tow alot but I dont think it would make it go out that quick.
 
Reply With Quote
  #5  
Old 08-25-2009
Jazz921's Avatar
Member
iTrader: (2)
Join Date: Sep 2007
Location: Evansville, IN
Posts: 997
I had that same issue and cleaned my IAC a few times. It would get better then always come back. Well, i was gonna buy a new IAC but decided to clean the throttle body before I did and the problem went away.
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dvdtlsn
General Technical & Electrical
2
12-23-2014 09:07 AM
jerry44
DOHC - 2.3L Duratec / Mazda L Engines
4
10-25-2014 08:07 PM
sketchytech
2.9L & 3.0L V6 Tech
21
10-11-2011 04:20 PM
amgcustoms
Suspension Tech
4
09-15-2010 01:37 PM
IcecreamLtDan
General Technical & Electrical
7
03-06-2008 04:01 AM


Thread Tools
Search this Thread
Quick Reply: Need help diagnosing problem


Contact Us Sitemap Advertising Cookie Policy Privacy Statement Terms of Service

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.