Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Koer code 18

Thread Tools
 
Search this Thread
 
Old Apr 19, 2019 | 06:45 AM
  #1  
Terry Smith's Avatar
Terry Smith
Thread Starter
|
New User
Joined: Apr 2019
Posts: 19
Likes: 0
Koer code 18

so I ended up getting key on engine running code18 because my truck was misfiring after about an hour of driving guess it warms up and it'll start doing it but when it's cool it drives great and after it warms up it starts missing well somebody told me to pull the engine coolant temp or the EGR solenoid so I did one of the other I pulled the EGR solenoid because that was the last thing I installed now the truck doesn't do it what could be the problem the truck does not misfire at all if it does i can't feel it now and the truck runs a hundred times better can somebody please give me some insight on this . Would I need to adjust my timing or advance it or back it off because you would think with everything plugged in that it would run better but with the solenoid unplugged it runs great but when when it's all plugged in it runs bad I don't know if it's if the timing is to far advanced or whatever but I know the code 18 was there and it's not there now I don't understand what the problem could be can somebody please help me understand this mess please
 
Reply
Old Apr 19, 2019 | 07:05 AM
  #2  
rla2005's Avatar
rla2005
Fleet Owner
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Why did you start another thread for your KOER Code 18 issue?

https://www.ford-trucks.com/forums/1...code-18-a.html
 
Reply
Old Apr 19, 2019 | 09:17 AM
  #3  
Terry Smith's Avatar
Terry Smith
Thread Starter
|
New User
Joined: Apr 2019
Posts: 19
Likes: 0
Originally Posted by rla2005
Why did you start another thread for your KOER Code 18 issue?

https://www.ford-trucks.com/forums/1...code-18-a.html
I went back on their and i could not find it so I thought it expired . That's why .
 
Reply
Old Apr 19, 2019 | 09:37 AM
  #4  
rla2005's Avatar
rla2005
Fleet Owner
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Now that you have the link to your original thread you can pick up where you left off.
 
Reply
Old Apr 19, 2019 | 11:04 AM
  #5  
Terry Smith's Avatar
Terry Smith
Thread Starter
|
New User
Joined: Apr 2019
Posts: 19
Likes: 0

this is what I got when I tried to open it up
 
Reply
Old Apr 19, 2019 | 11:19 AM
  #6  
rla2005's Avatar
rla2005
Fleet Owner
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Koer Code 18

Works fine for me on a PC and my cellphone:


 
Reply
Old Apr 19, 2019 | 01:01 PM
  #7  
sandymane's Avatar
sandymane
Lead Driver
Joined: Oct 2016
Posts: 6,185
Likes: 633
From: Houston/Sugar Land
https://www.ford-trucks.com/forums/1...code-18-a.html
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Shane McCormick
1987 - 1996 F150 & Larger F-Series Trucks
15
Jun 2, 2019 10:38 AM
scrobbie
1987 - 1996 F150 & Larger F-Series Trucks
4
Jan 27, 2014 07:10 PM
htandy75
1978 - 1996 Big Bronco
1
Oct 21, 2011 07:42 AM
underDAWG
1987 - 1996 F150 & Larger F-Series Trucks
4
Feb 8, 2004 10:37 PM




All times are GMT -5. The time now is 12:55 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE