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Rough Idle On A 2004 2.0 Tdci


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#1 Z3 MON

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Posted 02 February 2012 - 01:37 PM

Hey guys,

Just brought a 2004 2.0l tdci. It still pulls really well but has a lumpy idle and the car actually wobbles a bit. It's got a bit better. I bought it yesterday and it was sat for some time, no smoke or anything.

Also have a issue with the rear drivers side brake light staying on with the side lights so the full circle is lit all the time rather than bottom half only when not breaking??

Any ideas??

Cheers
Dave

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#2 Z3 MON

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Posted 02 February 2012 - 01:38 PM

just to re iterate its every time i stop and am stationary and its intermitant.

#3 Z3 MON

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Posted 02 February 2012 - 01:38 PM

just to re iterate its every time i stop and am stationary and its intermitant.

#4 mintalkin

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Posted 02 February 2012 - 03:55 PM

it could be a gummed up or stuck EGR valve, these can be removed and cleaned, as for the brake light check for any damage to the wiring or fitment.

#5 Z3 MON

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Posted 02 February 2012 - 04:53 PM

Will do :) is the valve to the right of the turbo as you look at the engine???

#6 Z3 MON

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Posted 02 February 2012 - 07:25 PM

Quick update, started it to go home, as usual started on the first turn easily. No effort. However we did notice a rather large plume of slightly black smoke (not blue) it didn't smell like oil but just like a stronger smell of the usual emmisions. The engine is rather noise but it is missing the plastic engine cover so I put it down to that.

I'm gona try and strip off the valve and clean it out this weekend and see where we go from there.

It doesn't seem to be getting any better from a few dual carriageway blasts, the weird think is its so nice and smooth to drive. I just don't get it.

Thanks

Dave

#7 pragmatix

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Posted 02 February 2012 - 07:37 PM

This may help you do a search for ford wiki there is a detailed guid to EGR cleaning on there, sorry not allowed to post a link

#8 Z3 MON

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Posted 02 February 2012 - 08:21 PM

That guide on Ford wiki is ideal. Is this a common problem on the mondeo??

#9 pragmatix

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Posted 02 February 2012 - 08:40 PM

That guide on Ford wiki is ideal. Is this a common problem on the mondeo??


Common to all cars that have an EGR, a very dodgy soloution to a problem that doesnt really exist. Who ever thought that putting burnt exhust gases back into an engine is an idiot, dont get me started on catalitic converters, they cause more polloution than the cure, the lean burn engine was the way forward but the cat was thought as a cheaper (short term ) soloution, do a search for lean burn engines it will through up lots of reading.
Sorry rant over

#10 1djspikey

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Posted 02 February 2012 - 08:44 PM

That guide on Ford wiki is ideal. Is this a common problem on the mondeo??


yeah it is david most garages go for the EGR valve like they did on mine but that problem as been sorted and it was`nt the cause next plan is to get my injectors tested as one of them as a slight little leak around it i hope this is the problem as its doing my nut ive change fuel pump solenoid wich i was told to do after going to ford for a code reading test and the problem still went on so it just leaves the injectors or fuel pump its self these cars are lovely when working right :wacko:

john

#11 1djspikey

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Posted 02 February 2012 - 08:56 PM

Common to all cars that have an EGR, a very dodgy soloution to a problem that doesnt really exist. Who ever thought that putting burnt exhust gases back into an engine is an idiot, dont get me started on catalitic converters, they cause more polloution than the cure, the lean burn engine was the way forward but the cat was thought as a cheaper (short term ) soloution, do a search for lean burn engines it will through up lots of reading.
Sorry rant over


yeah i got agree with pete EGR valves are the most stuipid idea its just a money maker i think plus most people have them blanked off so they don`t cause more problems in the future .

john

#12 Z3 MON

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Posted 02 February 2012 - 09:06 PM

Thought so. Am I right in saying that the valve does in the same place as a wastegate on a scooby or is the wastegate/dumpvalve the same as a egr valve ??,

#13 pragmatix

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Posted 02 February 2012 - 09:07 PM

them blanked off so they don`t cause more problems in the future .

john


That causes as many probs as it cures

#14 Z3 MON

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Posted 02 February 2012 - 09:08 PM

yeah it is david most garages go for the EGR valve like they did on mine but that problem as been sorted and it was`nt the cause next plan is to get my injectors tested as one of them as a slight little leak around it i hope this is the problem as its doing my nut ive change fuel pump solenoid wich i was told to do after going to ford for a code reading test and the problem still went on so it just leaves the injectors or fuel pump its self these cars are lovely when working right :wacko:

john


Mate that's getting, I really hope mine is not injection related. What happens to the injectors???

#15 pragmatix

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Posted 02 February 2012 - 09:11 PM

Thought so. Am I right in saying that the valve does in the same place as a wastegate on a scooby or is the wastegate/dumpvalve the same as a egr valve ??,


No not the same thing at all wastegates/dump valves stop a turbo over presurising a EGR ( exhaust gas recirculating ) valve just sends a portion of the exhaust gases back into the inlet manifold

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