99 expedition engine trouble
Jan 31, 2006 | 10:03 AM
Thread Starter
|
New User
Joined: Jan 2006
Posts: 1
Likes: 0
99 expedition engine trouble
I just changed my spark plugs and now when I hit 40 mph and it shifts and the rpms lowere it shutters. what could be doing this
Jan 31, 2006 | 01:34 PM
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
Need more information.
Which engine.
Which brand and part number spark plug did you use.
It's a misfire under load. If you didn't have one before, this problem is most likely due to a bad connection (plug wire, COP, injector, etc). If it was there before, it's most likely a wire or COP.
Steve
Feb 1, 2006 | 06:09 PM
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
...Welcome tntwisner to Ford Truck Enthusiasts!
We are happy you have chosen the best source for Fords.
Enjoy FTE....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.
Apr 10, 2011 | 12:42 PM
Joined: Apr 2011
Posts: 1
Likes: 0
I am having the same issue with my expedition. So it is a COP, or wire, how can I determine what one it is? Each COP is over $40 a piece so I don't want to change them all out if I don't have to.
Apr 10, 2011 | 06:52 PM
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
Please don't bring old threads back from the dead unless they are VERY relevant....
Apr 10, 2011 | 08:46 PM
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
Swap the offending coil to another cylinder and see if the code follows the code.
Apr 16, 2011 | 06:17 PM
Joined: Sep 2004
Posts: 218
Likes: 0
From: Douglasville,GA
Quote:
Originally Posted by
tntwisner
I just changed my spark plugs and now when I hit 40 mph and it shifts and the rpms lowere it shutters. what could be doing this
Did you use Motorcraft plugs?
Apr 17, 2011 | 09:14 AM
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
Quote:
Originally Posted by
green 1969 f100
Did you use Motorcraft plugs?
Um, that was FIVE YEARS AGO!
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Apr 21, 2011 | 04:51 AM
Joined: Aug 2010
Posts: 21,253
Likes: 1,656
From: Reynoldsburg, Ohio
Quote:
Originally Posted by
projectSHO89
Um, that was FIVE YEARS AGO!
These same issues occur regardless when they happened to the OP----its relevant in that way 100%!!
Jul 17, 2011 | 01:14 AM
Joined: May 2011
Posts: 4
Likes: 0
Extremely relevant since my truck is doing this. Now I highly doubt the OP will answer back
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
russellkr
1973 - 1979 F-100 & Larger F-Series Trucks
3
Nov 2, 2002 11:18 AM
beartracks
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
3
Oct 18, 2002 02:20 PM
dale i
1999 - 2003 7.3L Power Stroke Diesel
7
Sep 22, 2002 09:37 AM
rogwelch
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
9
Feb 12, 2000 11:29 PM
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
2
Jan 28, 2000 06:08 PM
40 ,
54 ,
99 ,
diagram ,
engine ,
expedition ,
ford ,
missing ,
mph ,
plug ,
remove ,
shutter ,
shutters ,
spark ,
troubleshooting