Engine Occasionaly misfires - 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 02-16-2008
Ray_Welder's Avatar
Member
Thread Starter
 
Join Date: Jan 2008
Location: Zephyrhills, FLorida
Posts: 1,037
Engine Occasionaly misfires

The engine will be running just perfect, and then the engine will miss and turn on the check engine light, Then sometimes the light will turn off for a bit then back on, or it will just stay on solid. I haven't checked the plugs or wires yet because neither of them are more than a couple months old, but thats going to be the first thing to check. But I was wondering if maybe the coil pack is going bad. I left it in my auto shop class and the teacher told me they couldn't get a code on for the check engine light, I'm not sure If it was because the light wasn't on at the time or what.

Last edited by Ray_Welder; 02-16-2008 at 11:04 PM.
Reply With Quote
  #2  
Old 02-18-2008
dlibson's Avatar
Member
 
Join Date: Feb 2007
Location: Brooklyn Park, MN
Posts: 185
It should have stored a code in history...

Could be a coil, but in my experience they aren't that intermittent. I would suspect a bad plug or wire.
Reply With Quote
  #3  
Old 02-18-2008
Ray_Welder's Avatar
Member
Thread Starter
 
Join Date: Jan 2008
Location: Zephyrhills, FLorida
Posts: 1,037
Ok, So I tried testing the codes manually by using a jumper wire and volt meter and the engine light, It doesn't work at all. On Koeo test the check engine light just stays on solid and doesn't flicker or flash, I tried using a voltmeter and it was on solid too. I double checked my jumper wire according to the manual. Is my computer messed up? Does this means its bad? I first though it was missing when the light turns on, Now im noticing that its not really doing much when the light goes on.
Reply With Quote
  #4  
Old 02-18-2008
My05edge's Avatar
Member
 
Join Date: Dec 2006
Location: Midland, TX
Posts: 1,351
miles on truck since last plug and wire change? im voting its gonna be that, if i were you id go buy a can of seafoam, pour it in the gas tank, drive that till empty then go get some new plugs and wires and see what happens(dont put seafoam in it with the new plugs because it can ruin them.
Reply With Quote
  #5  
Old 02-18-2008
Ray_Welder's Avatar
Member
Thread Starter
 
Join Date: Jan 2008
Location: Zephyrhills, FLorida
Posts: 1,037
Well like I said The plugs and wires are Nearly new , Replaced them a about two months ago, And its had about 3 thousand miles or so on it since then . The truck has About 180,000 miles on it overall. I getting codes now, earlier it wasnt working for some reason.

Last edited by Ray_Welder; 02-18-2008 at 03:52 PM.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
New plugs/wires, truck now misfires... Jan Kohl 2.9L & 3.0L V6 Tech 3 11-26-2011 09:29 PM
Engine starts choking and misfires then starts to jerk violently 97ranger666 SOHC - 2.3L & 2.5L Lima Engines 3 10-09-2011 12:36 PM
misfires! not again!! Danger_Ranger619 2.9L & 3.0L V6 Tech 4 05-20-2011 09:54 PM
Misfires roseranger SOHC - 2.3L & 2.5L Lima Engines 1 03-09-2011 07:23 AM
Engine Bucks and Misfires When Cold jlaporte0487 4.0L OHV & SOHC V6 Tech 4 01-28-2011 04:32 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 12:45 AM.


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.