BAD VIBRATION only when applying gas.

[T2ae]

as the title states i recently purchased a 2007 a4 quattro that has a very bad vibration whenever trying to accelerate. The vibration is in the car not the steering wheel. if you let off the gas the vibration stops. if you push the clutch in the vibration stops. does not vibrate at idle. I have been reading towards the axles or possibly the dual mass flywheel. I am seeking any advice on finding out how to diag between the two. ive also rear about the motor mounts/ snub mount but i have checked those and seem to be fine. Thanks for any help guys

[Theiceman]

did it do it when you bought it ?

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[T2ae]

did it do it when you bought it ?

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Yes I bought it this way

[Theiceman]

oh boy ... likely dumped for this reason .. this could be a good one as im sure PO tried lots before dumping car...

dont forget the coupler underneath .. cant remember the name of it but someone will bring it up.. sound like that to me ...

[Jayz691]

I would check to see if PO installed aftermarket axles, be easy to check.
I tried a new Cardone axle ones, and its caused a tight vibration on acceleration.
Wound up rebuilding old one.


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[T2ae]

oh boy ... likely dumped for this reason .. this could be a good one as im sure PO tried lots before dumping car...

dont forget the coupler underneath .. cant remember the name of it but someone will bring it up.. sound like that to me ...

nothing looks replaced that i can see. still the factory axles as well

- - - Updated - - -

I would check to see if PO installed aftermarket axles, be easy to check.
I tried a new Cardone axle ones, and its caused a tight vibration on acceleration.
Wound up rebuilding old one.


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still the factory axles. i noticed the passenger front does have some up and down movement to it so i may try to just replace that one to start

[T2ae]

so update i pulled the passenger front axle out tonight and it is beyond bad. I know this will make a big difference. i noticed the passenger rear wheel also had some hop to it. getting a new axle tomorrow and will report back

[Jayz691]

so update i pulled the passenger front axle out tonight and it is beyond bad. I know this will make a big difference. i noticed the passenger rear wheel also had some hop to it. getting a new axle tomorrow and will report back

Buy quality.. GKN is OE

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