SPONSORED LINKS

2000 BMW 320 ENGINE NOISE

Tiny
GUNNER34
  • MEMBER
  • 2000 BMW 320
  • 4 CYL
  • FWD
  • MANUAL
  • 97,500 MILES
I have a BMW 320D. The car is making a loud whistling sound when driving. It does not make noise when car is static just in motion. I think it might be a turbo problen but not losing power. Its very annoying. Any idea whats causing this or how to fix the problem?
SPONSORED LINKS
Saturday, December 12th, 2009 AT 9:59 AM

1 Reply

Tiny
DAYCLONE
  • MEMBER
  • 16 POSTS
Loud whistle is an indication of a vacuum leak. You could test it with a mechanics stethlescope to determine where the noise is coming from with a friend of course helping you out by having the vehicle in neutral and reving the car. Or you could perform a smoke test to determine where the leak is.

Most BMW E46's have a lower boot leak that is part of the cold air intake which cracks at the rear of the elbow boot, and causes a whistling noise, sometimes it could also be a fault of your idler control valve, or the cyclone valve. Its best to perform the tests above to ensure you narrow down the fault or have a professional mechanic look at it in person.

Best of luck.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, February 21st, 2010 AT 2:20 AM

Please login or register to post a reply.

Related Engine Noise Content

Engine Noises
GUIDE
Engine Noises
Today's car engines are designed with more complexity and moving parts than ever before. When you hear abnormal noises there is something wrong. Some high output engines...
VIEW MORE

Sponsored links