2013 a6 2.0

[3g_bishi]

Sorry if this is wrong spot to post this. I have a 2013 Audi A6 2.0 and recently it has started shake really bad at idle, the motor mounts are good. I put new spark plugs new intake gasket new crankcase valve new ignition coils! It does not have a engine light but when I hook up my scanner it has pending misfire but they never get confirmed. Any idea what It can be? I even replaced the ecm! Someone told me it was a balance shaft chain but no way it's only 3year old car! The car runs so smooth like new but has a very slight hesitation sometimes when throttled, and at idle it shakes so bad it shakes the whole dash and the hood. Feels like a bad motor mount but it's not.


Sent from my iPhone using Audizine

[Sanjman]

G28, g40 sensors? Did you check for boost leak? Did you check if your PCV has failed? Try this:

Unscrew oil cap, start car, try to pull the oil cap off. If it's sucking the cap in, then your PCV most likely failed or you have a vacuum leak

[3g_bishi]

Thanks for the reply. I did put. New pcv valve twice, but the oil cap still hard to take off, and I checked checked and checked no vacuum leak


Sent from my iPhone using Audizine

[3g_bishi]

Bumppp


Sent from my iPhone using Audizine

[3g_bishi]

It was the freaking motor mount at 80k miles 3 years old fml


Sent from my iPhone using Audizine