Noisey 4X

Discussion in 'GM Powertrain' started by mountaindan, Nov 13, 2009.

  1. mountaindan

    mountaindan New Member

    Joined:
    Mar 8, 2009
    Messages:
    12
    Likes Received:
    0
    I have a 96 2500, when I engage the 4X it will go in, but once I get up around 25mph it starts to make noise and vibrate, It sounds like it is not locking up completely. I have installed a new actuator but have the same results. I have also engaged it with the actuator out and it does extend.
    I have 2 questions, 1st how far does the actuator extend when engaged?
    and 2, where can I get a detailed view of the differential? I would like to know exactly what goes on when the actuator extends to actually engage the differential.

    Thanks for the help!
    #1
  2. mountaindan

    mountaindan New Member

    Joined:
    Mar 8, 2009
    Messages:
    12
    Likes Received:
    0
    Help

    No one has had a similar problem? :shocked:
    #2
  3. ayaws

    ayaws New Member

    Joined:
    Sep 9, 2009
    Messages:
    7
    Likes Received:
    0
    Well, I have a 2005 Yukon that's in for front diff service now. When accelerating in 4 hi or auto 4x4, it will make a bit of a moaning and grinding noise. No noises in 2wd.

    They're replacing three bearings in the front diff (one to each side and the pinon bearing.)

    $500 of labor and $200 of parts.

    T-case and actuator are all fine. Evidently this is a common issue.

    (Mine's a Yukon, so it's a half-ton which may/may not apply to you.)

    HTH,
    Adam
    #3
  4. vncj96

    vncj96 New Member

    Joined:
    Feb 4, 2008
    Messages:
    3,390
    Likes Received:
    3
    Every 4x4 i have owned has made some noise when in 4, never had any issues though
    #4
  5. mountaindan

    mountaindan New Member

    Joined:
    Mar 8, 2009
    Messages:
    12
    Likes Received:
    0
    Thanks for the inut guys. I will probably have to take in and have it looked at, There is something definitely wrong, it's not a normal sound.
    I just dont know enough about the front Diff to be tearing it apart!

    Attached Files:

    #5

Share This Page