Rattling engine noise
Well guys I'm still trying to track down this rattle noise from the front of the engine bay. It's only noticeable if you stand in front of the car or have the hood up; you cannot hear it from inside the car at all. I've just replaced all the pulleys w/ a new serpentine belt. Car has a brand new fan clutch and just had an oil change at the BMW dealership in town. At first I thought it was the VANOS unit but from what I've read it only happens at 2k-3k RPM's. I also had a friend check the water pump with a stethoscope and he said it sounded fine. So I'm at a loss at the moment. Hopefully somebody will be able to pinpoint the issue.
Edit: I also forgot to mention that I unplugged the DISA valve and it had no change on the noise.
Last edited by ryannel2003; 09-29-2012 at 07:43 PM.