Vibration problem

[advocate]

ok guys i upgraded my 02 b6 to sport 17'' wheels setup, installed the 08 sport shocks and h&r springs the the ride quality is excellent and handeling is great i did this upgrade about 4 weeks now, Heres the problem about 4 days ago i started feeling this vibration at idle and then at slow speeds and night before it went to being unbearable the front was really shaking and vibrating while driving.
So i changed the 2 engine mounts today the vibration has subsided a lot however its still there at slow speeds my mechanic wants to dyno the car sunday to see if its the axcel is jumping or causing this vibration, now tell me what you think woud be causing this problem? why all of a sudden this problem appeard form nowhere ? would going to the dyno make a difference? i am at a lost please help

[advocate]

help

[jessefrank]

You don't have a CEL right (if so probably a coil pack).

Did you check the other two mounts (Snub/Trans mounts)?
It could be that your mount(s) started to go and the rest went as well due to the extra strain...you repalced 2 (the engine mounts), but the other two could also be bad, hence still getting some vibration. I'd also make sure you have the mounts tightned down correctly.

Do you have a Manual or Auto trans?
If you are getting vibration at idle it probably has nothing to do with your new suspension setup or even your drivetrain; but most likely the engine/engine mounts. When you aren't moving sitting there in P or in neutral no power is being sent to your trans and to the rest of the drivetrain...so any vibration is coming from the engine.

[CyberPMG]

Scan for codes just to make sure there isn't any misfiring going on (bad coils). Also, when was the last time you had the spark plugs changed? New coils/plugs makes for a much smoother ride.

[advocate]

thanks for the feed back guys , but the car is not throwing any coded you are actually feeling the vibration more on the passenger side of the car when running at slow speeds my mechanic thinks is axle but he is not sure.
no we have not cheked the other mounts if after the dyno tommrow we rule out axle problem then i will change the other 2 mounts keep the feed back kcoming guys thanks much

[martini]

have you checked the CV boots on the axles to see if they are broken?

[advocate]

ok dynoed the car today inner cv boot burst and iner cv running bent or leaning down and not straight so we are gonna attempt to take it down tommrow and see wats going on