Euro 5 flat spot

Discussion in 'Tech/Mech General' started by SteveandDenise, Oct 28, 2013.

  1. SteveandDenise

    SteveandDenise Funster

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    We have an A class with a Euro 5 3lt Fiat engine, when pulling away from stand still at 1000 RPM aprox the engine seems to loose power for a split second a bit like a misfire then comes back with a vengence making it impossible to pull away smoothly without useing much higer RPM and slipping the clutch. We have had it in the dealers they say say somthing is wrong but do not sem to be able to find the problem we are now going to try another dealer to see if they can shed any light on the problem.This is our third Fiat 3 liter the others ran perfect,
    Has any one else experienced this on a EURO 5 3ltr
     
  2. jhorsf

    jhorsf Read Only Funster

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    Please tell me which dealer gave up and said they could not find a fault as I will know who to avoid:Eeek:
     
  3. Tootles

    Tootles Funster

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    Have you by any chance got a 'fly by wire' electronic accelerator?? Had one on our last tow car, a Suzuki Grand Vitara, and boy, did it put the ***** up you when pulling out quick from a junction.
    If your Fiat has such a device, its the actuator unit that's gone into wibbly wobbly mode.
     
  4. SteveandDenise

    SteveandDenise Funster

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    Yes all modern vehicles are now as you say fly by wire and I would asume a reostat on the pedel end to the ECU. As this is a common rail engine there is no fuel distribution pump only a high pressure one with electronic injectors.
    I now have it booked in at the Peterborough dealers this wednesday so I will keep you posted:thumb:
     
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  5. Phill D

    Phill D

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    i'd email FIAT motorhome http://www.fiatcamper.com/en/home

    and tell them of your problem and that you need help as the dealer is[STRIKE] useless [/STRIKE]cant fix it.:Eeek:
     
  6. FULL TIMER

    FULL TIMER Read Only Funster

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    had similar with my Renault Traffic, but even when driving it would hold back then all of a sudden take off like the clappers turned out to be the MAF sensor you'll normally find it in the pipework from the air filter to the inlet manifold, mine would drive ok if I disconnected it after starting and warming up the engine for a few minutes but it's running like dream now I have replaced it
     
  7. Rapide561

    Rapide561 Read Only Funster

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    Euro V

    Hi

    Euro V van here - same thing. I have had two of them and "just thought it was me"

    I will ask Guest Trucks to have a shufty next time I am in their neck of the woods.

    Russell
     
  8. SteveandDenise

    SteveandDenise Funster

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    Hi Russel
    Are you saying you have the same problem when pulling away from a stand still as I have.
    Once moving above 1000 Rpm it pulls fine
     
  9. gloworm

    gloworm Funster

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    I once had a similar problem with a Nissan 4x4, that too was the MAF sensor,

    :Smile:
     
  10. Allanm

    Allanm Funster

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    I had a Mercedes with a similar problem. Frustrating to try and pull out onto a busy roundabout. :Eek!:
    I changed the MAF, injectors, throttle body gizmo, fuel filter.....you name it, if I could unbolt it, it got changed.
    Nothing fixed it till I eventually found the head gasket was on its way out
    Hope yours is simpler
    Allan
     
  11. SteveandDenise

    SteveandDenise Funster

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    Now back from the Fiat dealers they say noththing wrong thats the way these are.

    Well funny how my last two vans did not do this ! no reply,

    Still it is not a major problem but more of an anoyance so looks I will have to live with it
     
  12. Melchior

    Melchior Read Only Funster

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    Fiat in "head in sand" shocker.

    Did your last two vans have exactly the same engine as the current one?

    At 1000rpm there will be very little, if any, boost being produced by the turbo which may well explain why it feels flat.

    It might help if you could film the rev counter for us. Find a quiet road and do a couple of pulls up from standstill then one in 2nd gear from idle speed and maybe one in 3rd as well. Then other folks with the same engine can compare with that with how their's behaves.

    If same = "They all do that sir"
    If different = problem.

    If you have a semi decent digital camera or smartphone then you will be able to do a little video and get it on Youtube, let us know if you need a hand with that :)
     
  13. Phill D

    Phill D

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    is the dealer used to seeing 3ltr motorhomes as most of the vans they will see will be 2.3ltr.

    just because they cant detect a fault with their test equipment doesnt mean its ok.

    a call to fiat camper services is defo in order.

    ps; has it been like that since youve had it?
     
  14. SteveandDenise

    SteveandDenise Funster

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    It was a few months old when we got it and it has always done it
     
  15. SteveandDenise

    SteveandDenise Funster

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  16. bobandjanie

    bobandjanie Funster Life Member

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    Hi Steve, cant help with the 3 litre, ours is 2.3 euro 5, and was a bit the same when we got it, had it re mapped and now about 150 bhp and a joy to drive better on fuel and tows our 1500 kg caravan no problem. :BigGrin:

    But the chap who did the re map, was telling me about Fiat re mapping vans to stop the clutch judder by reducing the power, don't know how true it is, but a fellow funster friend of ours, took his van in for clutch judder, and since then gets very poor miles per gallon, and when I mentioned this to him alarms bells started ringing, but don't know if he has been back or looked into it yet !

    :Eeek: Bob.
     
  17. SteveandDenise

    SteveandDenise Funster

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    Hi Bob

    You have changed your van then, I did put a TDI box on and it improved fuel consumption but had no effect on this problem.

    I may consider a remap once the van is out of Fiat warranty and possibly get rid of that exhaust fillter.

    Steve
     
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  18. JockandRita

    JockandRita Funster Life Member

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    Hi Steve,

    Did you got to Fiat Commercial (Ford & Slater) Newark Rd, or did you go to Stoneacre Fiat, Newark Rd.
    I have found the latter to be a waste of space, :Sad: and always had better customer service (not for the same problem though) from Ford & Slater, or Marshall Peugeot round the corner. :thumb:

    Cheers,

    Jock (PE6)
     
  19. SteveandDenise

    SteveandDenise Funster

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    Ford & Slater
     
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  20. JockandRita

    JockandRita Funster Life Member

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    It's disappointing that they couldn't figure out the problem for you. :Sad:

    Cheers,

    Jock.
     
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