General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

Rough Idle with warm engine only.

Thread Tools
 
Search this Thread
 
  #1  
Old 10-20-2017
Amp94.0's Avatar
Member
Thread Starter
Join Date: Oct 2017
Location: bfe, nc
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Rough Idle with warm engine only.

I have a 1994 Auto. 4.0 with 270K miles. Around 10 years ago I noticed if I would drive somewhere between 25+ miles and would recrank my truck within a 30-45 Min time frame I would have very rough idle. After about a minute the engine/RPMs will gradually increase and all is fine and drives well. Now, what happens is I have the rough idle and my truck dies almost instantly until I recrank and give it a little gas and it eventually will even out and drive fine. I have replaced the oxygen sensors and cleaned the IAC, MAF, Throttle, intake, Air filter within the past 2 months. I replaced the fuel filter several years ago and it still did this after I replaced it. Anyone have any ideas what my issue may be? No check engine or codes as of yet. Thanks!
 
  #2  
Old 10-21-2017
Grumpa's Avatar
Member
Join Date: Oct 2017
Location: Indiana
Posts: 366
Received 41 Likes on 36 Posts
That to me sounds like a temperature related issue. AIT sensor, or the coolant temperature sensor that feeds the PCM, not the gauge. You have a 94 so I'm not positive you have these, but that's what I'd look at next.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RAXtheRANGER
4.0L OHV & SOHC V6 Tech
13
03-22-2017 11:28 AM
bbb0777
SOHC - 2.3L & 2.5L Lima Engines
1
03-08-2017 06:49 PM
TonyT
General Technical & Electrical
4
02-13-2017 12:41 PM
galaxyflyer1
General Technical & Electrical
1
04-06-2016 07:55 PM
CAW
4.0L OHV & SOHC V6 Tech
3
04-12-2014 08:19 PM



Quick Reply: Rough Idle with warm engine only.



All times are GMT -6. The time now is 09:33 PM.