In Reply to: Re: Funky sound between 2500 and 3500 RPMs posted by Jeff on October 04, 2000 at 14:46:05:
After 50K of hard driving, my engine just started exhibiting the same problem. Mine was linked to excessive backlash in the vanos system.
1) Begining at 2500 RPMs and tailing off at 3500 RPMs, I hear a rattling noise from the engine. It does not seem to significantly change whether the engine is hot or cold.
I only hear this noise if I'm applying gas -- nothing if I'm just coasting in that RPM range.
Any ideas? Thanks,