Question about 1998 Ford Expedition

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Recent replacement of transfer case and now have a sporatic metal scraping sound that varies in degree and sometimes sound crunching metal comming from rear

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  • pmcaul3609 Mar 12, 2011

    2wd and 4wd and again sound seems to come from rear

  • pmcaul3609 Mar 12, 2011

    yes to bumps but not always bump related and yes to used case

  • pmcaul3609 Mar 13, 2011

    not always neccessarily when hitting bumps and again these noise vary in degree... sometime minor other times uglier

  • pmcaul3609 Mar 13, 2011

    again not always related to bumps and noise has varying degrees of sound. sometimes nothing other times minor and than ugly

  • pmcaul3609 Mar 14, 2011

    SCRAPING, CRUNCHING, GRINDING, SOMETIMES MODERATE OTHER TIMES MORE PRONOUNCED

  • pmcaul3609 Mar 14, 2011



    WHATS GOING ON, I HAD TO CHANGE PASSWORD TWICE CAUSE I COULDNT GET ON

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I take it that it did not do this before you replaced the transfer case. does it make the noise in 2WD and 4WD? have you checked to make sure that wile replacing the transfer case that you did not damage a heat shield that now might be hitting the case or drive shaft? please reply and we will see if we can find this thing.

Posted on Mar 12, 2011

  • 3 more comments 
  • john nail
    john nail Mar 12, 2011

    does the problem come and go with hitting bumps? and did you take a look at the heat shelds? and was this a used transfer case?

  • john nail
    john nail Mar 13, 2011

    OK< a couple things to check 1st just make sure that nothing is loose and hitting when you go over bumps, that should be eazey to find out, then check the rear drive shaft, the slip joint is what might be going on is that when you go over bumps the rear end moves up and down and when this happens the drive shaft has to get longer and shorter if the slip joint is stuck then every time the rear end goes up it pushes on the drive shaft and could cause a loud clunk it can also brake the transmission mount and in real bad cases it can brake the tail housing on the case.

  • john nail
    john nail Mar 13, 2011

    is the noise a grinding or a clunk or a rumble like some thing turning?

  • john nail
    john nail Mar 14, 2011

    did you check to see if the slip joint is working and not stuck ? also could be that tou got a transfer case with a broken tail shaft bearing or race.

  • john nail
    john nail Mar 14, 2011

    i dont know, all i do is get to answer questions, i don't have a clue how this sight works, but i am glad it does.

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