2003 Audi A4 Shake during acceleration

BOBBYA4

MEMBER
2003 AUDI A4
6 CYL
AWD
AUTOMATIC
44,000 MILES

Hello.'03 Audi A4 V6 3.0 44,000 miles - When I begin accelerating, the car begins to vibrate noticeably around 20mph. It gradually becomes more of a shaking as speed increases. It is at it's worst between 50-60mph. When I let up on the gas pedal, the shake goes away. Depress the pedal and the shake comes back. There is also a very faint knocking that I can hear when the radio is off and I can feel the knocking through my feet. Ever heard of this? Thanks, guys!

2 Replies

DENNISTHEMENACENY

MEMBER
1 POST

I have my mechanic trouble shooting that same issue on my BMW 325xi today.

He has thinks that there may be a reburn of the pcm that may fix it, and will also check the following:

- Check wheel bearings for speed vibration
- Check the flex guibo disc (a little rubber thing that connects your tranny to your drive shaft - you have to drop the exhaust to get at the flex disk)
- Check Lug centric spacers
- Check some of the fittings in the rear of the car - specifically the bolt that keeps the diff from moving around
- Check Center support bearing
- Check Transmission mounts
- Check Rear main diff. Bolt
- Check Front Drive
- Check For Upper and Lower Ball Joint Wear
- Checking Idler Arm and Tie Rod Ends
- Check Motor Mounts
- Check Rims and Balance