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Thread: car finally died today

  1. #1
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    Default car finally died today

    Well my vectra finally decided to die on me today , after plenty of mouth to mouth and cpr via jump leads she just gave up and decided to play dead. ~So it was put on a wagon and taken to the dealers

    been having problems with her for weeks now, 3 diagnostic machines all showing no code errors, 6 mechanics all scratching their heads and no one knows whats wrong , had a few good ideas from the boys and girls on here all checked and all came back ok .

    will let you all know what vauxhall say . . . . . . . feels weird not having a car though

  2. #2
    Ex-Staff Full Member John LE's Avatar
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    Vehicle : Facelift Insignia/Corsa D

    Trim : LE/VXR

    Engine : 2.0 cdti/1.6 Turbo

    Year : 13/07

    Default

    What engine?

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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

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    When you kept restarting it - how frequently did you try it - every 1-2seconds?

    Gazza4

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    Gazza4 - He's having the same problems as I was having.

    Throttle body re-solder should fix it IMO.

    Worked for me

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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

    Default

    Quote Originally Posted by RichyA View Post
    Gazza4 - He's having the same problems as I was having.

    Throttle body re-solder should fix it IMO.

    Worked for me
    I know m8 he is but restarting the engine within every 1-2seconds when the plate shuts (that's the result of the fault) keeps the vacuum in the inlet manifold which effectively causes the plate to 'seal' off the manifold - making restarting the engine impossible. It also gives the impression the car is dead, but if you hold of for about for 10seconds then restart is will in all likely hood start no problem as the vacuum has disappeared by this time.

    Gazza4

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    OK. He lives near me so, if it is a fix on the throttle body and he needs a hand, we'll arrange a time and I'll drop by to help.

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    Gazza , we tried starting every few seconds, then minutes then held the ignition on for a good few minutes all it did was just keep trying to start , eventually battery died sowe put jump leads on . Its in vauxhall now so just gonna wait and see what they say .

    Richie , pm sent , thanks for advice and if vaux say needs new throttle body then I will try solder first.

    This car will not beat me , I will not let it

  8. #8
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    Default

    Quote Originally Posted by john.robertson2 View Post
    What engine?

    its an 05 1.9cdti auto 150

  9. #9
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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

    Default

    Quote Originally Posted by RichyA View Post
    OK. He lives near me so, if it is a fix on the throttle body and he needs a hand, we'll arrange a time and I'll drop by to help.
    I say that as it could be the throttle plate has jammed shut and may be giving the impression the car is dead. The real operation of this valve is to control emissions (EGR flow) and limit the 'shake' effect when you switch off the engine.

    As my understanding has it - under normal driving it will vary it's pitch when in part load and under full load it opens up (WOT). When you switch the engine off the valve closes momentarily, then opens again. The valve is spring loaded in the 'open' position (Normally Open Valve) and needs electrical current you close. This electrical current is controlled via signals from the ECU - which is using data from MAP, MAF and pedal positions sensors - to control the EGR flow into the manifold. One of the other signals it will recieve is one in which the engine is switched off, when the power to the TB is cut, there is a signal to close over the valve, hance when this signal disappears the valve opens up again.

    The EGR valve as I believe in the CDTI's is either fully closed or fully opened - and hence requires the throttle plate to change the pressure difference in the manifold. Opening the valve increases inlet manifold pressure which reduces the pressure difference between the two manifolds. closing it reduces manifold pressure and increases the pressure difference between the two manifolds. The CDTI has a two EGR valve so has no position sensors within it, however the ECU uses the MAF sensor to detect EGR flow. This means blanking the EGR valve will produce the management light still, as opening the EGR valve will cause a reduction in MAF readings which is what the ECU will look for under 2,000rpm.

    But I ain't 100% it's months of DD's posts, links and others on here which I have came to this conclusion.

    Sorry for the rambling and it is not fact just the conclusion I have come to.

    Gazza4

  10. #10
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    I understand what you are saying with regard to the valve open and close position.

    When I removed the throttle body to clean and repair it, the valve was in the open position so I cleaned it and moved it to make sure it was moving freely.

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