Help Me Diagnose Driveline Noise
I have been trying to diagnose a oscillating noise from my driveline. I have a 2001 325i Auto and the sound increases proportionally with increasing RPM's. (More RPM's, the faster the repetition of the noise) It happens in P,R,N,D so I doubt it has to do with the wheels or suspension components. For example, when I start the car up, in P, I can hear a ticking noise coming from under the passenger seat side of the car. It is not coming from the front of the engine for certain. In my opinion it could be anything from the rear of the engine all the way to the rear of the car. Transmission is fine. No slips, no gear failures that I know of, and I just got my transmission fluid changed the correct way, with the correct fluids from ZF and etc etc back in July.
What could this be? Hopefully the guibo.