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Thread: CDTI 150 Intermittent loss of power/judder

  1. #1
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    Default CDTI 150 Intermittent loss of power/judder

    Hi all

    Well, my 2006 cdti (150), 200K on the clock got a strange problem.

    The problem would appear mainly when i depress the accelerator and below 2000rpm, never above. Mainly when the car have not reached the running normal temp. and most of the times in urban circuit.
    There´s a intermittent power loss, when i accelerate,nothing happens, then i disengage the gear, accelerate in neutral, two ot three times, and the car comes back to normal. If i continue with my foot down the accelerator, the car eventually awakes but only after a couple of seconds(or minutes, should i say) but sometimes not...

    Randomly the spanner light comes on the dashboard but just until the malfunction disappears. There are no registered error codes.

    Already replaced the throttle body, but seemed not to cure the problem.
    Already cheked the vaccum hoses. Have put a fiat gasket on the EGR a year ago with no problems whatsoever.

    What might be?

    Sorry my english...

    Many thanks!

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    Default

    More data....

    Normal maintenance made three months ago.

    Problem appears always under 2000rpm, never above.

    When i accelerate right after i released the accelerator.

    Mostly when the car has not reached the normal operating temperature or when i start the car after a couple of hours stopped.

    Already cleaned boost sensor with carb cleaner.

    Have previously cleaned the EGR and fitted a Fiat blanking plate and gasket about two years ago.Clogged EGR already?

    If i unplug the EGR to test it, the malfunction light on the dashboard can be erased only by "battery reset"? I have no Tech2.

    TKS
    Last edited by Campos1; 10th March 2012 at 09:10.

  3. #3
    Regular Member Barlow's Avatar
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    Vehicle : Nissan 350Z GT


    Engine : 3.5 V6

    Year : 06

    Mileage : 50,000

    Default

    Sound like symptoms of a bad Boost sensor or Camshaft position sensor.

  4. #4
    Full Member merikiito's Avatar
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    Vehicle : Insignia CDTi SRi NAV 160

    Trim : SRi

    Engine : A20DTH

    Year : 2009

    Mileage : 88000

    Default

    Or the 3rd injector plug, what colour is yours blue or yellow
    Lois Griffin: Peter! You're bribing your daughter with a car?
    Peter Griffin: Ah, c'mon, Lois, isn't 'bribe' just another word for 'love'?

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    Quote Originally Posted by merikiito View Post
    Or the 3rd injector plug, what colour is yours blue or yellow
    The plugs are the new ones.

    Thanks!

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    Quote Originally Posted by Barlow View Post
    Sound like symptoms of a bad Boost sensor or Camshaft position sensor.
    yes, I also thought about that and cleaned the sensor.

    Thanks!

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    Default

    I bought a new(used once for testing purposes)throttle body after cleaning the old one with no results.
    Installed the new one but the problem persisted...





    So I decided to clean the EGR, and guess what, the defective part was in fact... the EGR

    Before:



    After the EGR and solenoid cleaning and some lubrication with WD40 (the EGR was partially blocked/jammed:



    The car it´s OK! Pulls like a raging bull now...

    Many Thanks to you all.
    Last edited by Campos1; 13th March 2012 at 18:30.

  8. #8
    Regular Member Chris B's Avatar
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    Well done, and I see you have the same success as me with those gloves!

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    Quote Originally Posted by Chris B View Post
    Well done, and I see you have the same success as me with those gloves!
    LOl

    The gloves are handy...when they not tear.


  10. #10
    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

    Trim : design



    Default

    Well done - and your English was very good as well - you should hear my Portugese

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