Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > Ford Australia Vehicles > Small and Mid Sized Cars > Focus

Reply
 
Thread Tools Display Modes
Old 20-01-2011, 01:49 AM   #1
NO2
Old Man
 
Join Date: Oct 2007
Posts: 44
Default Sudden coil failure after service

My 2004 Focus was in for an A service and no faults or problems were found. However on leaving the car had a miss come in under load.

When the car was returned to the Ford dealer we were told that the coil had failed and need to be replaced. $400 later the car is good with a coil and spark plugs replaced.

Considering that the car did not have this problem prior to the service I am wondering what actions would cause a coil to fail like that. Running the car with a lead off a spark plug and not earthed perhaps. But I am not an auto electrician to know the answer.

Ford are adamant that a coil can go at any time but I have trouble accepting that it was purely coincidence happening after they had been under the bonnet.

NO2 is offline   Reply With Quote Multi-Quote with this Post
Old 20-01-2011, 09:23 AM   #2
ratter
FF.Com.Au Hardcore
 
ratter's Avatar
 
Join Date: Feb 2005
Location: Pit Lane
Posts: 11,867
Valued Contributor: For members whose non technical contributions are worthy of recognition. - Issue reason: Shares his in-depth tuning knowledge with the forum, very helpful. Contributor: For members who make a contribution worthy of recognition. - Issue reason: For his indepth tutorial on adding borders to photographs 
Default

Without checking a service schedule, I think there is no tuning or coild removal as part of an A service, it is only a minor service.
__________________
Pit Lane Performance
20 Rosella St Frankston 03 9783 8122

Authorised Streetfighter, Pcmtec , SCT & HP Tuners Tuning Agent,
ratter is offline   Reply With Quote Multi-Quote with this Post
Old 20-01-2011, 06:49 PM   #3
fordmondeoman
Regular Member
 
Join Date: Mar 2010
Location: canberra
Posts: 78
Default

either bad luck or more than likely they washed the engine bay down which possibly got water into the coil or around the leads may have put more load on the coil and then it pact it in hard to say though why it failed
__________________
2010 Mondeo Zetec TDI
fordmondeoman is offline   Reply With Quote Multi-Quote with this Post
Old 20-01-2011, 10:15 PM   #4
NO2
Old Man
 
Join Date: Oct 2007
Posts: 44
Default

They did wash the car. I haven't been around to check if they washed the engine bay. But that's a possibility
NO2 is offline   Reply With Quote Multi-Quote with this Post
Old 23-01-2011, 03:58 PM   #5
Talldude
Regular Member
 
Talldude's Avatar
 
Join Date: Apr 2005
Posts: 119
Default

I actually just changed my coil(after market part with after market leads) on my 03 LR focus and I have noticed that it starts better and it also idles better then before. Did have a few times when it took a couple of turns of the ignition to start the car.

So I am guessing these coils don't last long I'm afraid.
__________________
LR Zetec 3-Door black
With ST170 Suspension all round, ST170 Snorkel, K&N air filter, 2.0 Auto Air deflector, MSD Ignition coils and high amp leads. (In red adds at least 5bhp!) Also Under pulley kit. Refreshed ST170 wheels now!
Talldude is offline   Reply With Quote Multi-Quote with this Post
Old 27-01-2011, 05:16 PM   #6
WILDB
FF.Com.Au Hardcore
 
WILDB's Avatar
 
Join Date: Dec 2006
Posts: 1,320
Default

A Service is only a minor service.

Unfortunately these things can just fail. I'd say it's an unfortunate conincidence that it happened directly after a service.
WILDB is offline   Reply With Quote Multi-Quote with this Post
Old 07-01-2012, 10:43 AM   #7
player110
Starter Motor
 
Join Date: Sep 2009
Posts: 11
Question Re: Sudden coil failure after service

Could this cause a pinging noise.(Failed coil)
player110 is offline   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 01:03 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL