Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

#7 cylinder

Thread Tools
 
Search this Thread
 
Old Aug 23, 2010 | 07:15 PM
  #1  
aceltx09's Avatar
aceltx09
Thread Starter
|
Junior User
Joined: Aug 2010
Posts: 72
Likes: 0
#7 cylinder

my #7 cylinder is missing like mike tyson at a spelling bee, was running great changed all the plugs, all the boots and springs, I also changed the coil pack in #7 once I figured out which cylinder was missing, it seems to come and go but I'm sure its number 7 put an infared on exhaust manifolds all of them 500 deg. f. except number 7 which is 200 deg f. any suggestions, ideas??????
 
Reply
Old Aug 23, 2010 | 07:51 PM
  #2  
FORDTUF1's Avatar
FORDTUF1
Elder User
Joined: Mar 2007
Posts: 879
Likes: 0
From: at the truck pulls
Okay are you saying it was running great until you changed all this stuff? If so, then I would try moving the wire and/or plug from another cylinder. It wouldn't be the first time there were bad parts out of the box.
 
Reply
Old Aug 23, 2010 | 08:02 PM
  #3  
aceltx09's Avatar
aceltx09
Thread Starter
|
Junior User
Joined: Aug 2010
Posts: 72
Likes: 0
Thats the weird thing was running fine, I drive a work van so truck only gets driven on weekends, this saturday I installed a flowmaster muffler and all new plugs,boots and springs. I figured out with infared gun 7 cylinder was misfiring changed the coil pack then swapped it out with a working pack when that didn't work. I'm stumped
 
Reply
Old Aug 23, 2010 | 08:58 PM
  #4  
FORDTUF1's Avatar
FORDTUF1
Elder User
Joined: Mar 2007
Posts: 879
Likes: 0
From: at the truck pulls
I'd go ahead and do the wire and plug swap next then. Oh and check the #7 chamber in the flowmaster, it could be backed up. ;-)
 
Reply
Old Aug 23, 2010 | 11:40 PM
  #5  
Fordfanatic4life's Avatar
Fordfanatic4life
Postmaster
Joined: Oct 2008
Posts: 3,924
Likes: 6
From: Richmond BC
wiring problem ???

can you confirm the wire to #7 is actualy sending a signal to teh cop ?
 
Reply




All times are GMT -5. The time now is 06:44 PM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE