Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 1997 - 2003 Ford F150
Sign in using an external account
Register Forgot Password?


Welcome to F150 Forum!
Welcome to F150 Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, 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 free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 03-19-2011, 11:28 AM   #1
Junior Member
 
Join Date: May 2010
Posts: 8
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Thumbs up Replacing Coils (COPs) on the 2001 F-150 4.6

Hey,
There are a number of you that posted threads regarding misfirings and EGR related engine codes. I was chasing the dreaded P0401 (EGR flow insufficient) also and came to a revelation. I checked the EGR valve (held 15 in. of pressure), EGR solenoid, DPFE sensor and vacuum lines and everything was in working order. I then realized there was more to the problem.

What I didn't understand was there was no misfire codes registering. I noticed that when I pressed the gas pedal abruptly, there was a slight hesitation. When driving under a load, the vehicle shuttered and hesitated between 1500 - 2000 RPM. Since the vehicle had over 120,000 miles, I replaced the boots and spark plugs. However, the problem persisted. I spoke to a Ford technician and he informed me that this may be the sign of a bad coil. So I did a little research and found that coils can range from $60 - $150 each, depending on the brand. I checked eBay and hit the mother load! I bought 8 coils for $115, S&H included (see pictures for part numbers).

Replacing Coils (COPs) on the 2001 F-150 4.6-0319110848.jpg

Replacing Coils (COPs) on the 2001 F-150 4.6-0319110847a.jpg

Replacing Coils (COPs) on the 2001 F-150 4.6-0319110847.jpg

Replacing Coils (COPs) on the 2001 F-150 4.6-0319110846.jpg

SOLD!

You may ask "Why don't you just test them all and buy one instead of all eight"? I personally felt the investment was worth it since the truck was 10 years old. Besides, the amount of time it took to check each one would have been the same as simply replacing them all. I began replacing the driver side coils first because they were the toughest due to the fuel rails (I just loosened the rails and was able to replace coils #7 and #8 a bit easier). It took about an hour and a half because I lost a socket that I needed. After replacing the coils, the truck ran like a sewing machine again. I cleared code P0401 and it has been back.

I assume that you can have a coil misfire and not get a misfire code because the voltage was not enough to throw a code. Not sure why the EGR codes came on, but they're gone now and that's what counts. Tell me it this helped.
marine02xx is offline   Reply With Quote
Old 03-19-2011, 04:24 PM   #2
Junior Member
 
Join Date: Jun 2010
Location: Mount Airy, NC
Posts: 18
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

There's alot of different brands on ebay how do you know which ones to order, lol. I need a set for my 2003 F-150 5.4 engine. Which ones did you get ? Did you call and order them or just order straight thru ebay. I don't know if mine will take the same one as the 4.6 ?

Thanks
Rodney
__________________
2003 F-150 XLT SuperCab 4x4
All Stock
rodman is offline   Reply With Quote
Old 03-19-2011, 05:37 PM   #3
Junior Member
 
Join Date: May 2010
Posts: 8
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Rodman,
I simply did a search for "4.6l COP" and "2001 Ford F150" and got this:

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT

It gave a description of the vehicle it was for and I ordered it. Got them in three days and they fit just fine. I think they are the same as your engine, but I would check with AutoZone or Advance Auto to see if the 4.6 and 5.4 carry the same coils. Let me know how it goes.
marine02xx is offline   Reply With Quote
Old 03-20-2011, 08:10 PM   #4
Junior Member
 
Join Date: Feb 2011
Posts: 27
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Well bud, i order me a set.....I just hate a deal this good, it usually means problems...the cheapest ones i had found before these were 40 each..I hope they hold up, they sure are a pain in the *** to change...thanks...fatman
fatmanar is offline   Reply With Quote
Old 03-20-2011, 08:42 PM   #5
Member
 
Yank Tank's Avatar
 
Join Date: Mar 2011
Location: Moore, Ok
Posts: 32
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

hey guys,
ive been in the process of replacing mine for the past few months
i replaced two that threw a "cylinder misfire" code and ive replace four others as my schedule and budget allow
ive been buying "accel" brand from advance auto; theyre $35 a head and theyre yellow so i like the flair they add under the hood
just wanted to throw that out there
__________________

"Coming together is a beginning, staying together is progress, and working together is success." - Henry Ford
Yank Tank is offline   Reply With Quote
Old 03-20-2011, 09:12 PM   #6
Member
 
xmustangloverx's Avatar
 
Join Date: Oct 2009
Posts: 65
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

the pictures you've provided show what looks like 8 dirty coils. 8 dirty, potentially used coils. 8 dirty, used, potentially bad coils. good luck.
__________________
Ford technician
2002 F150 7700
1989 Mustang GT Convertible
xmustangloverx is offline   Reply With Quote
Old 03-21-2011, 03:47 PM   #7
Junior Member
 
Join Date: Feb 2011
Posts: 27
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by xmustangloverx View Post
the pictures you've provided show what looks like 8 dirty coils. 8 dirty, potentially used coils. 8 dirty, used, potentially bad coils. good luck.
I don't know what picture you are looking at, but the ones on the boxs look new to me.
fatmanar is offline   Reply With Quote
Old 03-21-2011, 07:06 PM   #8
Junior Member
 
Join Date: Mar 2011
Location: clayton nc
Posts: 14
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by Yank Tank View Post
hey guys,
ive been in the process of replacing mine for the past few months
i replaced two that threw a "cylinder misfire" code and ive replace four others as my schedule and budget allow
ive been buying "accel" brand from advance auto; theyre $35 a head and theyre yellow so i like the flair they add under the hood
just wanted to throw that out there
I've been switching mine out as they go bad too, with accell.so fare so good best deal I coud find so fare I've replaced four.
sprousef150 is offline   Reply With Quote
Old 03-21-2011, 07:19 PM   #9
Junior Member
 
Join Date: Mar 2011
Location: Boston, MA
Posts: 9
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I just ordered the Accel brand off of Amazon for my 2002 4.6L XLT. All 8 were brand new for under $180.00. The reviews looked good, but they aren't made in the U.S.
Also, the same product was online at different sites for $40-$55 a piece, so looking around helped.

GL w those ones you ordered.
thadd99 is offline   Reply With Quote
Old 03-21-2011, 07:26 PM   #10
Senior Member
5 Year Member
 
otto457's Avatar
 
Join Date: Apr 2009
Posts: 3,685
Mentioned: 0 Post(s)
Thanks: 1
Thanked 111 Times in 59 Posts
Feedback Score: 0 reviews
Default

Global automotive has reliable Gama COPs on ebay for $85 for a set of 8. Many have used these with sucess. Accels have a fairly high failure rate compared to Motorcraft and Gama. Not to say Accels won't work, just more chance to fail earlier.
__________________
2007 supercab 5.4L, 2wd, Gotts mod, Derale efans, 3" SI/SO exhaust, Gryphon by PHP

Questions about exhaust? Read here first:
http://www.f150forum.com/f11/exhaust...re-myth-78102/
otto457 is offline   Reply With Quote
Old 03-21-2011, 07:26 PM
 
 
 
Reply

Tags
4.6, misfire hesitation cop

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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2001 Ford F-150 Super Crew: Replacing Upper Control Arms marine02xx 1997 - 2003 Ford F150 1 05-22-2012 08:02 AM
selling 8 coils from a 2001 Crown Vic 4.6 bdub_02 General F150 Items 4 03-30-2011 06:54 PM
Replacing COPs & Plugs ?? rickathome 1997 - 2003 Ford F150 19 03-11-2011 12:52 PM
Replacing my COPs F150XLTSUPERCREW2001 General F150 Discussion 3 01-23-2009 09:27 PM
Replacing my ignition coils galaxypup12 1997 - 2003 Ford F150 11 08-18-2008 10:51 AM

 

The Mustang Source
All times are GMT -4. The time now is 05:41 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.5.2
Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.