Cylinder 4 Misfire - Focus Fanatics
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
FocusFest Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 08-20-2012, 10:03 AM   #1
samclarke666
Focus Rookie
 
Join Date: Aug 2012
Fan#: 102826
Location: hitchin, United Kingdom
What I Drive: 2005 Focus LX Estate

Posts: 1
FF Reputation: 1 samclarke666 Good Standing Member
Buy-Sell-Trade Rating: (0)
Cylinder 4 Misfire

Hi all,

I've been noticing recently that my car judders alot on acceleration and generally not performing as well as it should. I plugged in a cheap little fault code scanner i bought from ebay and it pointed me towards Clyinder 4 Misfire.

I've done a bit of googling, and changing the coilpack seems to be a good first step, the car was fully serviced with new plugs about 4 months ago.

One thing that's confusing me, though, i've looked on the internet for coilpacks, it seems like it's one whole unit? Is this correct, or am i looking at entirely the wrong thing!

Any help would be great
Sam


samclarke666 is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 08-20-2012, 10:10 AM   #2
IH84DZ
Focus Enthusiast
 
Join Date: Jul 2012
Fan#: 101801
Location: Champaign, IL
What I Drive: 03 CD silver SVT 5 door

Posts: 170
FF Reputation: 5 IH84DZ Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by samclarke666 View Post
Hi all,

I've been noticing recently that my car judders alot on acceleration and generally not performing as well as it should. I plugged in a cheap little fault code scanner i bought from ebay and it pointed me towards Clyinder 4 Misfire.

I've done a bit of googling, and changing the coilpack seems to be a good first step, the car was fully serviced with new plugs about 4 months ago.

One thing that's confusing me, though, i've looked on the internet for coilpacks, it seems like it's one whole unit? Is this correct, or am i looking at entirely the wrong thing!

Any help would be great
Sam
I believe your coil pack is one unit but someone from across the pond would have to confirm - they are a little different here in the states. Usually, if the coil pack is the issue in this regard you will have two cylinders misfire (2 cylinders are fired from the same coil). There aren't any particularly "known" issues to a #4 misfire so someone needs to perform standard misfire diagnostics.
IH84DZ is offline  
    Reply With Quote
Old 08-20-2012, 04:35 PM   #3
p58ff
Focus Enthusiast
 
p58ff's Avatar
 
Join Date: Jul 2005
Fan#: 25247
Location: VA, VA
What I Drive: 2010 Red 4-Door SES

Posts: 148
FF Reputation: 1 p58ff Good Standing Member
Buy-Sell-Trade Rating: (1)
Interestingly I had this same code about a month ago. I was worried that maybe the valve seat was getting ready to go as I have an SPI engine in my Focus, a 2002.

Anyway, I pulled the plug wire off of the #4 plug and noticed that it was dirty with some corrosion. I cleaned it up, added the dielectric grease to the boot and went about my way. Been fine since.

Maybe you need to look at that option before spending money on a coilpack.

PAv
p58ff is offline  
    Reply With Quote
Old 08-20-2012, 06:33 PM   #4
Blue5ive
R.I.P Kona
 
Blue5ive's Avatar
 
Join Date: Mar 2011
Fan#: 83941
Location: The 5th Dimension, United States
What I Drive: 2003 TW Blue ZX5

Posts: 10,087
FF Reputation: 8 Blue5ive Good Standing Member
Buy-Sell-Trade Rating: (8)
Check connections and plugs to be sure they are good first. If so then it is your coilpack. Don't know what motor you have but should only take about 10-15 minutes to change. In the states here the coilpack is only about $100 U.S.
__________________
Team Focalize
Hatch Nation #9
"2 by 2 Hands of Blue."
Blue5ive is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

Thread Tools
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

Forum Jump


All times are GMT -5. The time now is 12:24 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.