Notices
1997 - 2006 Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator Discussion

COP help......

Thread Tools
 
Search this Thread
 
Old Jan 29, 2008 | 01:04 PM
  #1  
TheGreatExpedition's Avatar
TheGreatExpedition
Thread Starter
|
New User
Joined: Jan 2008
Posts: 8
Likes: 0
COP help......

Hey everyone,
Great site, I have been looking on here the past week because I just bought a 2000 XLT with 100,000 miles on it for a really good price. The transmission was just replaced and I saw the paperwork, truck is in excellent shape, except for one thingy....

I have a code for a misfiring cylinder, I though it was #1 but upon searching posts I realized that a P0306 means the 6th cylinder. So either I read the code wrong or read the comments off the OBDII wrong.

So anyhow, does this have to be replaced immediately? The truck is a bit sluggish and at idle the tach bounces a bit but do I have to take care of it right away or can it wait for the weekend?

Thanks in advance and again, great site you all have here!
 
Reply
Old Jan 29, 2008 | 01:55 PM
  #2  
maldbwmjr's Avatar
maldbwmjr
Junior User
Joined: May 2007
Posts: 87
Likes: 0
It's not the worst that can happen, but you'll have to deal with potential stalls and a rough ride - I would keep the driving to a minimum. FYI, you can change it fairly quickly during the week: in about 10-15 minutes.
 
Reply
Old Jan 29, 2008 | 02:28 PM
  #3  
Ron W.'s Avatar
Ron W.
Elder User
Joined: Jan 2008
Posts: 589
Likes: 0
From: Stockton Ca.
Change it, your truck will like you better . 2nd cylinder back on the drivers side, most likely the COP but unless you know the plug is in good shape change it also. I highly reccomend using only Motorcraft plugs in your truck. Good Luck.
 

Last edited by Ron W.; Jan 29, 2008 at 02:33 PM.
Reply
Old Jan 29, 2008 | 02:41 PM
  #4  
c_hohensee's Avatar
c_hohensee
Laughing Gas
15 Year Member
Joined: Feb 2006
Posts: 843
Likes: 0
Club FTE Gold Member
If that cylinder is misfiring it may be dumping extra fuel into your converters and that is not a good thing. I would minimize driving it until you can change it.
 
Reply
Old Jan 29, 2008 | 02:56 PM
  #5  
TheGreatExpedition's Avatar
TheGreatExpedition
Thread Starter
|
New User
Joined: Jan 2008
Posts: 8
Likes: 0
Thanks for the responses. I am going to change it after work today. I will post up my results sometime tomorrow.
 
Reply
Old Jan 29, 2008 | 05:09 PM
  #6  
vze2sgxa's Avatar
vze2sgxa
Senior User
Joined: Nov 2003
Posts: 467
Likes: 1
From: Where the war is...
Originally Posted by TheGreatExpedition
Thanks for the responses. I am going to change it after work today. I will post up my results sometime tomorrow.
#6 is easy to change; you can see some of my comment on how easy removing cops are for plug changes here at a previous post I did:

https://www.ford-trucks.com/forums/6...ml#post5503278
 
Reply
Old Jan 30, 2008 | 01:51 PM
  #7  
TheGreatExpedition's Avatar
TheGreatExpedition
Thread Starter
|
New User
Joined: Jan 2008
Posts: 8
Likes: 0
OK I got it changed and it turned out to be the #1 COP was bad.

It took all of 20 minutes to change out.

Thanks for all your guys help pointing me inthe right direction.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Fred Robertson
2004 - 2008 F150
37
Dec 22, 2023 04:01 PM
jpennell1
2004 - 2008 F150
6
Jun 26, 2015 10:29 PM
nick05350
6.0L Power Stroke Diesel
5
Mar 7, 2012 04:21 PM
ChrisCarter
2004 - 2008 F150
42
Nov 7, 2011 09:00 PM
jejenkins417
Electrical Systems/Wiring
12
Jun 29, 2011 12:32 PM




All times are GMT -5. The time now is 05:48 PM.

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