Go Back   F150online Forums > Powertrain & Mechanical > V8 Engines
Sign in using an external account
Register Forgot Password?
Register Photos Vin Decoder FAQ Members Search Today's Posts Mark Forums Read Vendor DirectoryGarage

Welcome to F150Online Forums!
Welcome to F150Online.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the F150Online Forums community today!





Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 03-26-2009, 07:01 PM
Junior Member
Garage is empty, add now
 
Join Date: Mar 2009
Vehicle: 2000 Ford F150
Posts: 5
2000 F150 5.4 Triton - Rough Idle

I inherited a 2000 F150 Supercab this past Jan. It was an AZ truck that I drove to IL. The truck has 52K and was babied by the previous owner (my father-in-law).

It ran with no issues while I was in AZ for a couple of weeks and then on the drive home, it ran with no issues either. Once we hit Chicago the temp was 19. The next morning I went to drive the truck and after letting it warm up for 10 mins I noticed that when I came to a stop the engine was idling very roughly. It stopped as soon as I drove again. The check engine light came on and was on for 2 days. The check engine light cleared before I could get the code.

Fast forward to March. The rough idle happened on a couple occasions but the check engine light never came on again. I went to drive the truck this morning and it is running rough through all speeds. The engine is NOT idling roughly when in Park or neutral though....???

Other than knowing the truck had oil changes every 3000 miles I am not aware of the maint performed. As the previous owner has passed away I also can't get those answers.

I'm guessing it is some sensor since it is not happening in park or neutral. Maybe a fuel filter/fuel pump?

Any suggestions would be greatly appreciated.

Thanks, Ben
Reply With Quote
  #2  
Old 03-26-2009, 09:10 PM
Senior Member
2003 Ford F-150
 
Join Date: Dec 2005
Location: MT. JULIET,TN
Vehicle: 03 4X4 5.4 SCREW
Posts: 2,424
What motor do you have? Possible spark problem, COP if you have a 5.4
Reply With Quote
  #3  
Old 03-26-2009, 09:17 PM
Junior Member
Garage is empty, add now
 
Join Date: Mar 2009
Vehicle: 2000 Ford F150
Posts: 5
5.4 Triton
Reply With Quote
  #4  
Old 03-26-2009, 09:35 PM
Junior Member
Garage is empty, add now
 
Join Date: Mar 2009
Posts: 18
Quote:
Originally Posted by crocadoolie View Post
5.4 Triton

Most likely one of the COP (Coil on Plug) has gone south on it. You should be able to get the code out as long as the battery has not been removed. On a good code scanner, you'll have a review freeze frame mode. Run that as it always keeps the info on the last code thrown. A blinking CEL indicates a non-emissions issue which is true for the misfire you have. Option 2 is to clear the computer by disconnecting the battery and stab the throttle. The misfire has to be pretty severe and continued to throw a code. Once you see the light pop on, even for a second, read the code and replace the COP and plug.

Motorcraft plugs only and might as well replace all the COP at the same time. Once 1 goes bad, they all like to follow along.
Reply With Quote
  #5  
Old 03-26-2009, 09:52 PM
Junior Member
Garage is empty, add now
 
Join Date: Mar 2009
Vehicle: 2000 Ford F150
Posts: 5
I've been ready some horror stories about plug replacements...is this the model that I need to be concerned about?
Reply With Quote
  #6  
Old 03-26-2009, 11:32 PM
Junior Member
Garage is empty, add now
 
Join Date: Mar 2009
Posts: 18
Quote:
Originally Posted by crocadoolie View Post
I've been ready some horror stories about plug replacements...is this the model that I need to be concerned about?
Just use the correct tools and you'll be fine. Anti-seize on the threads and lots of dielectric grease on the boot. Be sure to coat where the COP boot goes into the head too. I think what you'll find is that the tops of the COP where they connect to the plugs are corroded. There should be some good info on this forum about what to watch for in doing them. The tools do help alot though.
Reply With Quote
  #7  
Old 03-27-2009, 01:40 AM
glc glc is offline
Senior Member
Garage is empty, add now
 
Join Date: Dec 2006
Location: Joplin MO
Vehicle: 2003 Ford F150
Posts: 28,286
*NO* antiseize, and torque the plugs to 28 ft/lb. The horror stories are 04+ 5.4's, yours is more susceptible to plugs loosening and blowing out, not sticking and breaking.

A full set of cops can be had on Ebay for under $100, and use only Motorcraft plugs.
__________________
2003 F-150 XL RCSB 2wd 4.2 M5OD 3.55 LS
Reply With Quote
  #8  
Old 08-15-2010, 06:22 PM
Junior Member
2001 Ford F-150
 
Join Date: Aug 2010
Posts: 4
Talking

I had rough Idle and would get a cylinder 3 misfire. Tried new spark plugs, fuel filter, injector cleaner, injector and moving coil packs around. Nothing worked so took it to the ford dealership. They founf that the wire to the coil and injector was bad put new wires and cleaned the injectors. Cost me $500 run's like new.




2001 Ford F-150 Suppercrew 105k 5.4L V8
Reply With Quote
Old 08-15-2010, 06:22 PM


 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


All times are GMT -4. The time now is 12:02 PM.


 
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company
Contact Us Advertising Privacy Statement Terms of Service Jobs Forum Text Archives
Emails & Contact Details