3.0 Low Idle - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-08-2016
TheArcticWolf1911's Avatar
Member
Thread Starter
 
Join Date: Nov 2015
Location: Evansville, Indiana
Posts: 1,369
3.0 Low Idle

Just recently, I noticed something after a drive. While sitting there idling, fully warmed, the engine will slow rotation down to about 600RPM and idle somewhat rough. It doesn't feel like it's going to stall, and is very steady.

However, if the idle is raised just slightly, the roughness instantly goes away. There are no other symptoms. This makes me consider it's a vacuum leak, but there is no check engine light and I don't hear the iconic hissing sound of a vacuum leak.

Is this normal? 1999 Flex Fuel 3.0 automatic, 114,5xx on the clock.
Reply With Quote
  #2  
Old 06-08-2016
TheArcticWolf1911's Avatar
Member
Thread Starter
 
Join Date: Nov 2015
Location: Evansville, Indiana
Posts: 1,369
Something to note is, it doesn't idle like that all the time. It's intermittent. I don't think it's anything to worry about, but I like to be sure and not just guess.
Reply With Quote
  #3  
Old 07-29-2016
Member
 
Join Date: Jul 2016
Location: Murfreesboro,TN
Posts: 37
Elm 327
Torque pro for android
Obd fusion for Apple

Check fuel trims at idle

A vac leak would show the long term trim over +5
Learn fuel trims if you don't know.....you tube video.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
low idle when slowing down to idle j_huhnke General Ford Ranger Discussion 13 04-06-2012 04:58 AM
High Idle / Low idle 2003 Ranger 3.0 thom2003 2.9L & 3.0L V6 Tech 1 03-27-2012 12:12 AM
low idle when slowing down to idle j_huhnke 4.0L OHV & SOHC V6 Tech 2 03-25-2012 09:26 AM
LOW LOW LOW RPMS JRacer 4.0L OHV & SOHC V6 Tech 23 05-06-2009 11:25 PM
LOW LOW mileage......reasons? tchs_drummer06 2.3L & 2.5L I4 Tech 37 03-22-2006 12:30 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 01:59 AM.