Notices
Explorer, Sport Trac, Mountaineer & Aviator 1991-1994, 1995-2001, 2002-2005, 2006-2010 Ford Explorer

Coil problem

Thread Tools
 
Search this Thread
 
Old Dec 9, 2012 | 10:16 AM
  #1  
panteramatt's Avatar
panteramatt
Thread Starter
|
Senior User
Joined: Mar 2003
Posts: 202
Likes: 0
From: south jersey
Coil problem

My wifes 3V mountaineer has had a bad miss for a long time now. It seems fine until around 40-60 mph where it bucks and misses bad. I replaced all the plugs and it went away for a while but its back again. So far Ive replaced 3 of the coils with the accel coils but its just a shot in the dark really. Can you guys tell me an easy way to check the coils or cylinder to see which one is truly the culprit?
 
Reply
Old Dec 9, 2012 | 03:10 PM
  #2  
aquanaut20's Avatar
aquanaut20
Cargo Master
20 Year Member
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
If it bucks and misses enough times it will set a MIL... or you could connect an OBDII scanner and check for PENDIN codes.... Philip
 
Reply
Old Dec 9, 2012 | 03:12 PM
  #3  
panteramatt's Avatar
panteramatt
Thread Starter
|
Senior User
Joined: Mar 2003
Posts: 202
Likes: 0
From: south jersey
It bucks all th etime between 40-60 but no cel.
 
Reply
Old Dec 9, 2012 | 03:16 PM
  #4  
aquanaut20's Avatar
aquanaut20
Cargo Master
20 Year Member
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
I doubt you have a coil issue, does the CEL illuminate when you first turn ignition on (no start)....... Philip
 
Reply
Old Dec 9, 2012 | 03:20 PM
  #5  
panteramatt's Avatar
panteramatt
Thread Starter
|
Senior User
Joined: Mar 2003
Posts: 202
Likes: 0
From: south jersey
I believe it comes on then goes off like its supposed to.
 
Reply
Old Dec 10, 2012 | 08:43 AM
  #6  
KhanTyranitar's Avatar
KhanTyranitar
Postmaster
Joined: Oct 2009
Posts: 3,432
Likes: 7
Bucking under load is more often an issue with a sensor such as the MAF. Clean it with MAF sensor cleaner and see if it doesn't improve. Do yourself a favor and replace the POS Accel coils with Motorcraft.
 
Reply
Old Dec 10, 2012 | 01:39 PM
  #7  
panteramatt's Avatar
panteramatt
Thread Starter
|
Senior User
Joined: Mar 2003
Posts: 202
Likes: 0
From: south jersey
Really? The accel coils are junk? That sucks. Spent like $120 on 3 of them so far.
 
Reply
Old Dec 10, 2012 | 02:21 PM
  #8  
aquanaut20's Avatar
aquanaut20
Cargo Master
20 Year Member
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
Originally Posted by panteramatt
Really? The accel coils are junk? That sucks. Spent like $120 on 3 of them so far.
That is why it is best to fulfill the basic diagnostics first.. Philip
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Dec 10, 2012 | 03:00 PM
  #9  
panteramatt's Avatar
panteramatt
Thread Starter
|
Senior User
Joined: Mar 2003
Posts: 202
Likes: 0
From: south jersey
Sorry but what do you mean by that? I dont have a cel so Im not sure on the problem.
 
Reply
Old Dec 10, 2012 | 05:16 PM
  #10  
aquanaut20's Avatar
aquanaut20
Cargo Master
20 Year Member
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
Miss-fire/bogging under load can manifest under many circumstances...

I suggest connecting a LIVE DATA SCANNER.
Check for pending codes,
then record the values for MAF, O2, LTFT, ECT.
Verify correct fuel pressure,

...Philip
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gabriell12123
1999 - 2016 Super Duty
10
Sep 5, 2018 09:27 AM
scout63
1999 - 2016 Super Duty
8
May 12, 2010 10:39 AM
JASON11WS6
1997 - 2003 F150
8
Aug 9, 2007 10:42 PM
joshperrymon
Modular V8 (4.6L, 5.4L)
6
Dec 22, 2004 05:40 PM
mebe2k
1983 - 2012 Ranger & B-Series
4
Feb 19, 2004 11:27 PM




All times are GMT -5. The time now is 07:06 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE