Results 1 to 4 of 4

Thread: Stupid n00b question.

  1. #1
    Join Date
    Aug 2014
    Location
    Alabama
    Posts
    4
    My Cars
    2004 325i

    Stupid n00b question.

    Okay, so I have a dumb question. I'm fairly new to the bmw world. I drive a 2004 325I, and as I'm driving down the road, between 2000-2500 rpms it makes a light rattling noise from what sounds like the motor, but goes away after I surpass 2500 rpm, or go below. What's weird is it only makes the noise under load, it doesn't make it while free revving. I'm used to owning Japanese cars so this is my first bmw I've owned. I'm kind of stumped so far.
    Last edited by Onespud; 08-26-2014 at 07:00 PM.

  2. #2
    Join Date
    Jun 2009
    Location
    McKean township Pennsylva
    Posts
    10,542
    My Cars
    1999 M3 , 1999 328is
    You might be best to ask this on the e46 subforum here: http://forums.bimmerforums.com/forum...2006-%28E46%29

    I would take a guess that something is hitting a resonance.

    Is the car a manual or automatic?
    Current fleet:
    1999 BMW e36 M3
    1999 BMW e36 328is with rotary valve engine head
    1999 Oldsmobile Eighty Eight
    1990 Jeep Comanche Eliminator
    1962 Austin Healey Sprite

  3. #3
    Join Date
    Aug 2014
    Location
    United States
    Posts
    5
    My Cars
    2003 BMW 325XI
    how many miles are on the car? it could be the Vanos system timing. try a bottle of bars main bearing seal.
    what is also good is Lukes motor Oil 1 quart works wonders.
    or it could be exhaust guards you have to pin point where the sound is coming from.

  4. #4
    Join Date
    Aug 2014
    Location
    Alabama
    Posts
    4
    My Cars
    2004 325i
    @Pizzaman09 , thanks, I'll give it a shot, and it's an auto

    @Kenny , it's got 144k miles on it, I was thinking that it was a guard rattling but I keep second guessing myself, it's hard pinpointing the exact area it's coming from since it only makes the noise under load. Its hard figuring it out with my head out of the window lol

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •