Wierd issue..idle - 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.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-14-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
Wierd issue..idle

Alright guys, just started noticing the following symptom with the truck.

When I put the truck in park, the idle drops down kinda low, and truck runs kinda rough for a second. Im thinking either TPS (been replaced one time), IAC (clean or replace this weekend), or battery maybe.

I just have put the HID relay kit on the truck which powers the HIDs directly off of the battery instead of through the trucks electrical system. But I dont think this is the cause, it does it with HIDs off as well.

Any ideas, or do you think ive hit it on the spot. Also, I think I am going to be replacing spark plugs and wires this weekend and cleaning MAF.


In the videos, you can hear me put the truck in park.
Attached Thumbnails
Wierd issue..idle-th_video-2011-10-14-06-54-54.jpg   Wierd issue..idle-th_video-2011-10-14-06-54-54.jpg  
Reply With Quote
  #2  
Old 10-14-2011
RLong31's Avatar
The Ban Hammer
iTrader: (5)
 
Join Date: Jul 2009
Location: Monrovia, IN
Posts: 2,629
You still haven't replaced those spark plugs?
Reply With Quote
  #3  
Old 10-14-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
heck no, my buddy called me and wants to replace them tomorrow though. so im going to, then do a few maintainence things. but i wanna find this issue. its nothing major, but enough to aggrevate the **** out of me
Reply With Quote
  #4  
Old 10-14-2011
j99ranger4x4's Avatar
Member
iTrader: (5)
 
Join Date: Sep 2008
Location: Delaware, OH
Posts: 1,381
Battery shouldn't b it since it's only responsible for starting
Reply With Quote
  #5  
Old 10-14-2011
01RangerEdge's Avatar
Scrambles the DeathDealer
iTrader: (11)
 
Join Date: Jul 2009
Location: Jackson, MO
Posts: 7,598
This happened to me a couple weeks ago. My mechanic told me it was probably a vacuum issue. I tried to find it, but recently it quit doing it.
Reply With Quote
  #6  
Old 10-14-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
Quote:
Originally Posted by 01RangerEdge View Post
This happened to me a couple weeks ago. My mechanic told me it was probably a vacuum issue. I tried to find it, but recently it quit doing it.
I dk, i mean it just started and I just put relay kit on leaving me to believe it may have something to do with that
Reply With Quote
  #7  
Old 10-14-2011
01RangerEdge's Avatar
Scrambles the DeathDealer
iTrader: (11)
 
Join Date: Jul 2009
Location: Jackson, MO
Posts: 7,598
Quote:
Originally Posted by dixie_boysles View Post
I dk, i mean it just started and I just put relay kit on leaving me to believe it may have something to do with that
I can't think of how your relay kit is causing it though
Reply With Quote
  #8  
Old 10-14-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
I was just throwing it out there since it seems that the issue started shortly after. but i kinda didnt think it was since only idle goes down and nothing else
Reply With Quote
  #9  
Old 10-14-2011
04RangerDave's Avatar
JDM> RANGER

iTrader: (3)
 
Join Date: Jul 2010
Location: RI
Posts: 5,030
Quote:
Originally Posted by dixie_boysles View Post
I was just throwing it out there since it seems that the issue started shortly after. but i kinda didnt think it was since only idle goes down and nothing else
Just an idea. Unplug the relay kit. And see if it does it from there.
Reply With Quote
  #10  
Old 11-21-2011
lownrangr's Avatar
Member
 
Join Date: Jul 2006
Location: Wayne, MI
Posts: 175
my truck recently started doing that too. Cleaned out the IAC but no change.
Reply With Quote
  #11  
Old 11-21-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
mine hasnt done it anymore that I know of
Reply With Quote
  #12  
Old 11-23-2011
Member
 
Join Date: Mar 2005
Location: Whitehorse, Yukon
Posts: 30
tap on the MAF a bit. clean it with sensor clean if you have it, or try swapping a known good.

also, make sure the sensor wiring is good. if you were in there poking around when you were screwing with the lights you could easily have caused an issue. they are sensitive.
Reply With Quote
  #13  
Old 11-23-2011
lownrangr's Avatar
Member
 
Join Date: Jul 2006
Location: Wayne, MI
Posts: 175
i've also read that the IAC can cause a whining sound? I do have that kind of noise when accelerating when it's cold out until the engine warms up a bit. So does the drop in rpm when shifting to neutral or park and the whining sound point toward a bad IAC? I also cleaned the MAF and no change.
Reply With Quote
  #14  
Old 12-02-2011
lownrangr's Avatar
Member
 
Join Date: Jul 2006
Location: Wayne, MI
Posts: 175
update. A new IAC fixed the idle issue.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1995 Ranger 2.3l WIERD A/C issue. FubarGrn SOHC - 2.3L & 2.5L Lima Engines 1 03-10-2016 08:22 PM
Wierd lighting issue fellupahill General Technical & Electrical 0 07-03-2013 01:39 AM
wierd sputtering and starting issue Mcgver 4.0L OHV & SOHC V6 Tech 2 02-04-2012 08:07 AM
Wierd Fuel issue mlw20lu 2.9L & 3.0L V6 Tech 19 10-20-2009 08:45 AM
4.0 wierd idle beachbumfl 4.0L OHV & SOHC V6 Tech 2 06-07-2006 03:01 AM


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 04:21 PM.


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.