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Old 10-07-2009   #1
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Unhappy "engine failure" warning & lack of power

it's booked into a Fiat dealer for next week, they reckon it's probably the EGR valve.
The warranty runs out in about 3 weeks so I'm glad it's happened now if it had to happen.
Seems to be a common theme on the forum, maybe it's just one of those things that needs replacing every few years?
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Old 12-07-2009   #2
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Re: "engine failure" warning & lack of power

sod's law the fault has corrected its self, warning lights gone and power is back .
I'll wait and see what the techs say. Maybe they'll want to change the EGR anyway??
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Old 12-07-2009   #3
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Re: "engine failure" warning & lack of power

I had poblem with egr. But my problem was that i didnt recive engine fault i sufferr lack of power no more then 1500-2000rpm full speed. my mechanic changed mass air sensor but after one day it happend again and then he did one thing, he closed opening to the egr valve so now egr is not in function and my car is working normal. Car is 2003 year and all that cost 10euro. Now it is not euro3 standard becouse egr is not doing anything
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Old 13-07-2009   #4
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Re: "engine failure" warning & lack of power

Quote Originally Posted by zocca View Post
I had poblem with egr. But my problem was that i didnt recive engine fault i sufferr lack of power no more then 1500-2000rpm full speed. my mechanic changed mass air sensor but after one day it happend again and then he did one thing, he closed opening to the egr valve so now egr is not in function and my car is working normal. Car is 2003 year and all that cost 10euro. Now it is not euro3 standard becouse egr is not doing anything
they said they would change my EGR valve if it was faulty.

The fault has re-occured now and it's down on power again so I hope they can sort it.
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Old 15-07-2009   #5
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Re: "engine failure" warning & lack of power

It was the DPF.
Not covered on 3rd year warranty so it cost 38 to run a cleaning cycle. Not too bad really. When he said it wasn't covered I was really worried .

I was told that the engine needs a regular long run at high revs to keep the DPF clean, like a motorway run.
I rarely drive on motorways so that's going to be difficult to do, although I've got two long motorway trips coming up soon so that should help.

I'm hoping the DPF can last the life of the car if I can keep it clean as I was told they are about 1,000 to replace .
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Old 15-07-2009   #6
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Re: "engine failure" warning & lack of power

Blimey! Thats a bit expensive! Thanks for the advice - I'll keep coming home the motorway route
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Old 15-07-2009   #7
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Re: "engine failure" warning & lack of power

Quote Originally Posted by RichDoblo120 View Post
It was the DPF.
I was told that the engine needs a regular long run at high revs to keep the DPF clean, like a motorway run.
I'm hoping the DPF can last the life of the car if I can keep it clean as I was told they are about 1,000 to replace .
Nothing in the handbook to show that it needs what you have been told .

The DPF to my mind either works or is faulty - surely a long run at high revs creates carbon which blocks the system up at which point the gizmo tells it to regenerate itself

Would be nice to have someone clarify this issue - the thought of 1000 is not satisfactory to me.
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Old 16-07-2009   #8
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Re: "engine failure" warning & lack of power

Quote Originally Posted by nec View Post
Nothing in the handbook to show that it needs what you have been told .

The DPF to my mind either works or is faulty - surely a long run at high revs creates carbon which blocks the system up at which point the gizmo tells it to regenerate itself

Would be nice to have someone clarify this issue - the thought of 1000 is not satisfactory to me.
handbook is just a guide and should be treated as such, call in or phone your nearest dealer if you have any questions.

DPF needs a good run (thus generating heat) to burn off the particles, typically 550-575oC.
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Old 16-07-2009   #9
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Re: "engine failure" warning & lack of power

Quote Originally Posted by T14086 View Post
DPF needs a good run (thus generating heat) to burn off the particles, typically 550-575oC.
Thanks T for the response - I will visit my main dealer and try to get someone to talk me through the DPF to try and understand it better. They have now been used since 2007 so problems should be surfacing now on high mileage vehicles if there are any.

I reckon they make the engine less efficient as regards mpg but cannot bottom that one as yet - unless of course you know something more..
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Old 16-07-2009   #10
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Re: "engine failure" warning & lack of power

oh dear, more dpf problems, after my experience, which is written all over this forum, I wouldnt touch another fiat with a dpf on, until they sort the reliability issues out. having said all that, we still own 3 fiats in our family, BUT the so called bullet proof skoda roomster that we bought to replace the doblo, is currently in at the dealership for a mysterious misfire, that seems to be undiagnosed, so i'm begining to wonder if thats a dpf issue as well.
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Old 16-07-2009   #11
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Re: "engine failure" warning & lack of power

dont know if skoda use VW DPF's but if so they are having terrible problems with them.

I actually think the Fiat DPF works well, customers just need to get used to it & have a little understanding of it, dont expect salesman to explain it all but ask to speak to tech or DET at garage after all you just spent 9-12k on a new car so surely they can make sure you are 100% happy with it & its workings.
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Old 17-07-2009   #12
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Re: "engine failure" warning & lack of power

Perhaps people who do long fast runs occasionally actually burn out the DPFs and have no problems. The touble seems to arise where cars are used for shortish local journeys and never hammered along fast roads for hours on end? Given that not everyone does use their car for long journeys perhaps petrol engines might be a better bet for more people.

Until the new Multijet2s arrive, with Multiair heads of course (2011?), as these will seemingly do without DPFs and EGR valves altogether. I hope.
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Old 17-07-2009   #13
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Re: "engine failure" warning & lack of power

Main problem is short journeys which interupt the regeneration process.
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Old 17-07-2009   #14
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Re: "engine failure" warning & lack of power

Quote Originally Posted by T14086 View Post
Main problem is short journeys which interupt the regeneration process.
Good point T - should Fiat have included a flasher or something to let us know it is regenerating?

I can only say I have 'smelt' and felt the warmth once in 10k miles - which I assumed was the process. I would have thought that it would have been in operation every few hundred miles at the most - any thought on that point?
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Old 18-07-2009   #15
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Re: "engine failure" warning & lack of power

Quote Originally Posted by Ulpian View Post
Perhaps people who do long fast runs occasionally actually burn out the DPFs and have no problems.
Can't see that being the case as the heavier you foot it in a diesel without DPF the more unburnt carbon comes out (black smoke) so working on that basis the DPF would just clog sooner - IMHO.

If temp's of up to 600c are needed to regenerate a DPF then a blast when the engine is well warmed would not in my understanding of engine temps achieve anything near 600c - unless someone knows differently
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