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Thread: egr valve check

  1. #1
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    Default egr valve check

    Can anybody tell me how you check if an egr valve needs changing i have cleaned mine every 6 months since ive owned it and its always very sooty i also have a judder if im on the motorway and then go to over take something so planting my foot and get juddering could this be egr related or something else. I do over 100 miles a day to work and back, car has done 82k and is a 1.9 cdti 120. Hope someone can shed light on this for me.

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    Vehicle : CDTI 150

    Trim : Design

    Engine : Z19DTH

    Year : 2005

    Default

    Hi Daz,
    Could be the throttle body cct board needing a resolder; could be a sticky EGR have you cleaned the solenoid?

  3. #3
    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

    Mileage : 137000

    Default

    What are the markings on the plug mate?

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    Default

    hi what is a cct board? how do i clean the solenoid? and what markings on which plug am i looking for? thank you for getting back to me

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    Vehicle : CDTI 150

    Trim : Design

    Engine : Z19DTH

    Year : 2005

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    Hi Daz,
    Within the throttle body (large assy bolted on to inlet manifold, pax side) there is a circuit (cct) board, the solder joints can break.
    The EGR solenoid can be cleaned by un bolting it it from the end of the EGR valve, then using a drill (3-5mm), makeing a hole in the plug end, within which you can insert a drift to knock the solenoid assy out. This process is explained within the Vec C website.


    http://www.vectra-c.com/forum/showth...45#post1338145 (Throttle body)
    Last edited by lesj; 26th November 2010 at 18:18.

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    Default

    Thanks mate ill look into both of those and see how it goes

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    Regular Member the-wizard's Avatar
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    Vehicle : vectra-c

    Trim : sri

    Engine : cdti

    Year : 2004

    Mileage : 98,000

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    As you do 100 miles a day if your ever this way i can give you some pointers!, close to j10 m42.

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    Default

    hi wizard i used to live in tamworth how near to j10 are you? and i will defo come and get some advice off you am in tamworth most weekends infact are there tomorrow as parents live in tamworth your help would be most appreciated

  9. #9
    Regular Member the-wizard's Avatar
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    Vehicle : vectra-c

    Trim : sri

    Engine : cdti

    Year : 2004

    Mileage : 98,000

    Default

    Could be throttle body related, if your cleaning the egr regular it should be ok, but a FULL clean as shown in the how 2 is a good idea, also have you thought about the semi blanking gaskets, this will reduce the soot down to nill virtually. pm'd.

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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

    Default

    You might have actually escaped the throttle problem tbh. I think it only affects 2004 and 2005 CDTI's.

    Gazza4

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