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Thread: Occasional front end "popping"

  1. #1

    Occasional front end "popping"

    Hopefully the last noise diagnosis thread for me... I get an occasional pop (could also be described as a soft "crack") from the front left. The noise you get when you tap your knuckle against the window is a similar sound.

    This tends to happen mostly within the first couple minutes of driving after the car has sat for a while. While not consistently reproducible, it will often happen when I'm easing out of a parking garage (<1mph) right when the front left tire goes over the seam b/w parking garage and street. The noise will also happen as the car transitions from flat to going down while driving down through a parking garage. The noise doesn't seem to happen going over bumps.

    Struts, mounts, FCAs, FCABs, tie-rods, end-links etc. are all new. Everything should be tight.

    Ideas?

  2. #2
    Join Date
    Feb 2014
    Location
    Picton, ON
    Posts
    5,913
    what kind of FCABs?
    peter



    2005 BMW 330iT ZHP 6MT | obnoxious

    2007 BMW X3 3.0si M Sport 6MT | the X

    2009 BMW 335i M Sport 6MT | the next chapter

  3. #3
    OEM / Lemforder on FCAs and FCABs.

  4. #4
    Join Date
    Jun 2011
    Location
    VA/DC
    Posts
    14,216
    I replaced my front suspension bits and developed a knock several months later that was mostly noticed in parking garages. I was about to replace major parts again when I started disassembling I noticed one of the end link nuts had worked loose. (Hope yours is as easy to fix. )

  5. #5
    Thanks. I double checked all the nuts up front a few months back so, unfortunately, I don't think it's the end links. Was the noise you experienced pretty intermittent?

  6. #6
    Join Date
    Jun 2011
    Location
    VA/DC
    Posts
    14,216
    Quote Originally Posted by nsk040 View Post
    Thanks. I double checked all the nuts up front a few months back so, unfortunately, I don't think it's the end links. Was the noise you experienced pretty intermittent?
    Yes. We’ll only noticed at slow speed and occasionally.

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