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2005 Focus 2.0 Diesel Loss Of Power (Not Permanent)

Judder shaky slow fuel

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#1 Jaybatron

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Posted 26 June 2013 - 03:36 PM

Hi all,

       not exactly a new issue here I see but I would like to elaborate slightly on the information other people with the same/similar problem have given. I have a 2005 mk2 focus 2.0 diesel estate, I bought it privately from a guy in Bristol 9 months ago. I paid £1900 pounds which seemed a great deal to me for what I was getting but gave it a good look over and drive and all seemed fine. I drove it the 120 miles home, no problem and for around three months it drove like an absolute dream. Then one day without warning it completely lost power, it was like driving a 0.8.

        Ever since then it has done this every 3-4 days. There is no bang, and no black smoke but the lack if power is massive, putting your foot down hard doesn't make it rev any higher and if you keep it down and try to force it, it judders. The engine management light has come on twice over 6 months when it has happened but that's nothing in the 50-100 times it's happened. Now,the strangest thing I find in all this which I couldn't seem to find in other discussion's apart from one, is that turning the car off and then back on instantly fixes it-obviously until it happens again. I don't know much about cars but this to me suggests that there isn't a major mechanical fault as, if there was, the car wouldn't EVER run properly. That said, even when it is at full power these days it isn't as smooth as it was and always seems to be threatening to go again. So this has me thinking it is either a dodgy sensor or something is causing an incorrect mix of air/fuel. Most people with similar problem are quoting either map sensor, egr valve or dpf. To me the egr valve makes sense, especially if the previous owner had it cleaned as apparently this can give it a short term fix.

       The other thing I forgot to mention is that it definitely happens a lot less if you keep the fuel topped up, and this has my local mechanic convinced that it's either the fuel filter or a weak fuel pump. The problem seems fairly common across focus and mondeo diesel's but there doesn't seem to be a definitive YES-this is the problem and this is how you fix it, so I was hoping people who have managed to get their cars running properly again could all put how they did it on here. I have registered the problem with Which as they are trying to put more pressure on car recalls and if this is a common problem it's not on. The power has gone on the motorway a couple of times and it's scary, I wouldn't want to have kids or family in the car.

        In the meantime the car is having a new fuel filter in 6 days so I will post the result regardless of whether it works or not.

       Sorry to ramble, any information would be massively appreciated!

Jamie



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#2 alexp999

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Posted 26 June 2013 - 05:38 PM

Hi and welcome to FOC.

 

What sort of mileage do you do in the car?



#3 DanGersFord

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Posted 26 June 2013 - 05:59 PM

Moved to focus section

#4 Jaybatron

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Posted 27 June 2013 - 09:46 AM

It varies depending on how far away I'm working but for most of the time I've had it I was driving 40 minutes to Southampton and back every day. Over a year probably 10-15k.



#5 alexp999

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Posted 27 June 2013 - 09:49 AM

It sounds like it is going into limp home mode, have you tried looking on ford ETIS, or through your service history to see if your car has a DPF?



#6 Jaybatron

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Posted 27 June 2013 - 10:41 AM

Under the minor features is says stage iv+ DPF emissions. I don't know what stage iv is but I take that to mean it does have a DPF.



#7 alexp999

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Posted 27 June 2013 - 10:43 AM

How much of the service history do you have? On that age Focus, it will almost certainly be the old additive requiring DPF, which I believe needs topping up every 3 years and the entire DPF replacing every 6 years...



#8 jeebowhite

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Posted 27 June 2013 - 11:06 AM

indeed. It does sound like the old DPF issue. You may benefit fron taking the car on the motorway and driving along at red line revs just to force an induction, sit on the inside lane at 60 in third gear or something so then your not in the way, not requiring the boost, and it should help to clear the DPF.



#9 Jaybatron

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Posted 27 June 2013 - 11:13 AM

I've just had a good look through the history. There are reports from ford in 2009, 2010 and 2011 where everything is listed and how urgently it needs doing rated by green, amber and red. On the earlier two, under external, there are a list of obvious things and a blank box at the bottom. But on the 2011 one the blank box is filled with fuel additive 0.5 which is rated as amber and I don't think the previous owner had it done, that's a while ago now! This whole DPF thing seems a bit ridiculous, too late to feel sorry for myself though I guess. Cheers for the replies by the way.



#10 alexp999

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Posted 27 June 2013 - 11:29 AM

If it is going in to have work done, it will be worth them checking the additive level and also whether it looks like the DPF has been changed as per the service schedule for you car.

 

You may be able to use ETIS and generate service reports to determine when (and if) it should have been done.



#11 jeebowhite

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Posted 27 June 2013 - 02:59 PM

It should be topped up every three years, with EOLYS fluid, and then replaced every 6.

 

This comes down to every 37.5K miles for the fliud, and every 75K for the filter itself.

 

Your alternative answer is to have the DPF removed. Its much cheaper, will save you a tonne over the years and can be removed, and deleted for around 300 - 500 quid.



#12 alexp999

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Posted 27 June 2013 - 03:00 PM

It should be topped up every three years, with EOLYS fluid, and then replaced every 6.

 

This comes down to every 37.5K miles for the fliud, and every 75K for the filter itself.

 

Your alternative answer is to have the DPF removed. Its much cheaper, will save you a tonne over the years and can be removed, and deleted for around 300 - 500 quid.

 

Will it not fail the MOT doing that?



#13 jeebowhite

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Posted 27 June 2013 - 04:07 PM

Most if not all companies also do a remap to reduce emissions, most companies offer a guarantee that the removal will not affect MOT's.



#14 johnH

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Posted 27 June 2013 - 05:13 PM

Best bet though to not throw money at parts and labour not required is to take it to a dealer and get it hooked up... The faults stored will point you in right direction and less money spent...



#15 Stoney871

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Posted 27 June 2013 - 05:51 PM

I'd start with a good service and see how you go from there.

Fuel filters on the Focus can cause problems when dirty.



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