Car: 1995 318IS
Issue: When I accelerate and I hit roughly 3-4K RPM I get a vibration under the car (center console area + rear wheels). It sounds like something is knocking, and its jumpy .
If I slow down, this vibration lessens or goes away. It does not matter how short or long I've been driving before this vibration occurs.
Possible answers: I did read up on some forums. I see that it may be issues with the CV Joint/Axle/Boot. Either replacement or just need to remove old grease and add fresh new grease. Also read that it may possibly be a failing or busted: "U joint," differential, engine/tranny mount, drive shaft, guibo(big maybe), center bearing, half shaft, wheel bearing, sway bar being loose.. etc
I need your help. Please
*** Yes I am sure its RPM/HIGH RPM related. Its whenever I accelerate. I could be in 3rd gear going up a hill OR 4th gear on highway going up a slope OR even flat ground going in 2nd gear over 4K. Once I give it gas maybe pass 3-4K it vibrates in the center console area, and rear of car. ***
VIDEOS: BEST EXAMPLE IS VIDEO 4 OF 4 OMGvst - YouTube