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Thread: Next fault

  1. #1
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    Default Next fault

    Fitted the new throttle body today and the care drives soooo much better however still has a blip but no where near as bad or often.

    There is a small amount of oil in the turbo hose and with the engine off when you pump the brake pedal then keeping your foot on the pedal and start the engine it does release but it's quite slow, also if you pump the brake pedal whils engine is running the pedal also goes hard, I thought this only happened with engine off?

    Reason I mention this is because someone said the blip could be caused by the vacuum pump, but how do you test it?

    If it's the circular thing in front of the throttle body then it gets very hot when the engine is warm, I do still have a fault code relating to the brakes but unsure whatnot is at the mo

  2. #2
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    I guess it could be corrosion in the plug of the throttle body as well, the pcb had corrosion and although I cleaned the plug maybe it needs a new one

    Just unsure about the brake / servo and oil turbo hose

  3. #3
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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

    Default

    Someone else who had this issue had found out it was the Brake servo which was faulty. Btw make sure you haven't knocked the vacuum hose when you were replacing the TB. The vacuum hose sits in the vicinity of the boost hose going into the TB and can be knocked alot with regularity. It is the hose with 'spinning top' looking thing in it. If you follow it - on one end it goes to the vacuum pump infront of the oil filler cap and runs to the brake servo.

    Gazza4

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    I will have a look at the vacuum hose, do you know where the servo is located and how easy it is to change or is servo and vacuum pump the same thing?

  5. #5
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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

    Default

    Quote Originally Posted by fattony View Post
    I will have a look at the vacuum hose, do you know where the servo is located and how easy it is to change or is servo and vacuum pump the same thing?

    I don't know how easy they are to change, the vacuum pump sits in front of the oil filler cap and the servo sits on the firewall in the engine bay, in the same position as where the brake pedal would be. Iouldn't touch anything as you could break the seal in the system rendering the brakes useless.

    Gazza4

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    Fair enough leave well alone me thinks hopefully someone will know a way of testing the servo / vacuum pump but just my luck there isnt

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