My car makes a low blowing noise intermitently.

Tiny
ANONYMOUS
  • MEMBER
  • 2001 BMW 320I
  • 100,000 MILES
My car makes a low blowing noise intermitently whilst driving and the revs drop when the noise occurs
Thursday, January 3rd, 2013 AT 3:48 PM

1 Reply

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
VANOS, cyclone separator, the list for what might be the source is very long, lets narrow the search. Is the check engine light on? Has the live data been investigated? What are the fuel trim numbers?
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Saturday, January 5th, 2013 AT 5:25 PM

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