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Thread: Question about electrics on throttle body

  1. #1
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    Default Question about electrics on throttle body

    I have a question that I thought someone out there might be able to answer, took my throttle body off today and cleaned it as it was coked up the question is this , the part next to throttle body that is enclosed it plastic, when we took the lid off where the electric circuit board is was covered in what looked like really runny wattery oil, should this oil be there ? ? ? ?

    hopefully the answer is no and I can go out and buy a new throttle body and my car will run smoothly , oh and its an 05 vectra c , 1.9cdti , 150 auto


    thanks John .

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    Hi john, i cleaned mine out completely and didnt cure the issue i was having. I know gazza has had more success by removing the plate as he thinks it may be closing when it shouldnt be. Could try that before buying a new one?

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    Quote Originally Posted by danman487 View Post
    Hi john, i cleaned mine out completely and didnt cure the issue i was having. I know gazza has had more success by removing the plate as he thinks it may be closing when it shouldnt be. Could try that before buying a new one?
    I have pm'd Gazza as it was him that put me onto cleaning the throttle body out in the first place, thanks

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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

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    Jsud2002 pm replied to m8

    Yeah the plate was closing effectively shutting the engine down.

    My theory behind it is that some electrical fault had developed - open circuit on the PCB etc and it made the Throttle body think that the engine had been switched off hence, it would shut over. The valve is spring loaded in the 'open' position so something had been trigering the TB electrics to shut the valve over - imo.

    Hope you get it sorted.

    As for the oil, it shouldn't be there m8.

    Gazza4

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    Regular Member Derek Mc's Avatar
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    It now looks like the shaft seal allows oil past due to the pressure in the intake and it fills up this unit and eventually causes it to fail!

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    Quote Originally Posted by Derek Mc View Post
    It now looks like the shaft seal allows oil past due to the pressure in the intake and it fills up this unit and eventually causes it to fail!
    Typically its the electrical joints on the PCB which give up - the oil doesn't help the stepper motor though.

    Gazza4

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    Quote Originally Posted by Gazza4 View Post
    Typically its the electrical joints on the PCB which give up - the oil doesn't help the stepper motor though.

    Gazza4

    Had a look at the joint and all seemed ok but ya need ****** good eyesight to check , think I might take it off again and resolder them all anyway , cant do any harm by doing this , oh and thanks for the pm Gazza , didnt realise they could be that expensive , think your right though, gonna deffo make sure it is this before purchasing new one.

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    Quote Originally Posted by jsud2002 View Post
    Had a look at the joint and all seemed ok but ya need ****** good eyesight to check , think I might take it off again and resolder them all anyway , cant do any harm by doing this , oh and thanks for the pm Gazza , didnt realise they could be that expensive , think your right though, gonna deffo make sure it is this before purchasing new one.
    No worries bud.

    Gazza4

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    Regular Member Marky's Avatar
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    Anyone have a pic of the soldered joint that can break?

    Might have to check mine.

    Just answered my own question. There is a very nice how to here: http://www.vectra-c.com/forum/showthread.php?t=119346
    Last edited by Marky; 7th October 2010 at 20:53.

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    Quote Originally Posted by Marky View Post
    Anyone have a pic of the soldered joint that can break?

    Might have to check mine.

    Just answered my own question. There is a very nice how to here: http://www.vectra-c.com/forum/showthread.php?t=119346
    Just beat me

    Also there could be a connection issue too.

    Gazza4

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