2002 Escalade SUV front diff noises
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, 2002 Escalade SUV front diff noises in Cadillac Escalade Forums; New guy here, not new to GM trucks but new to the Cadillac world. I just bought an 02 Escalade ...
  1. #1
    Justind1203 is offline Cadillac Owners Member
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    2002 Escalade SUV front diff noises

    New guy here, not new to GM trucks but new to the Cadillac world.



    I just bought an 02 Escalade with 140k on it, needed a transfer case when I got it. We did a t case, then I noticed a slight vibration and noise from the front front diff, I had my mechanic do bearings in it, it doesn't have any vibration now ( I can't feel it in the wheel anymore) but now I have a humming noise..... he said it is pinion noise, he said most GM AWD trucks do it? Even if it is "normal" is there a better gear oil to run in there to keep it quiet? I think he only did the carrier bearings in the diff, should I have him take it apart and do the pinion bearing too? Damn noise drives me nuts!!


    Thanks
    Justin

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  3. #2
    chacho44 is offline Cadillac Owners Member
    Automobile(s): escalade esv
    Join Date
    Dec 2011
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    Re: 2002 Escalade SUV front diff noises

    While the unit was out and torn apart you should have changed the bearings, races, seals. I just did this to my 03 but I had a bad carrier bearing. I also changed the all the u joints too.

  4. #3
    Justind1203 is offline Cadillac Owners Member
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    Re: 2002 Escalade SUV front diff noises

    We did change carrier bearings and seals as well as all the u-joints on the truck, I think the noise I have is pinion noise? I did drive my buddies Yukon Denali XL and it had a similar noise but not as pronounced. The noise just drives me nuts and I'll more than likely pull the whole front diff and swap it out for another complete unit.

  5. #4
    Justind1203 is offline Cadillac Owners Member
    Join Date
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    Re: 2002 Escalade SUV front diff noises

    Put about 1000 miles on the truck so far, no issues at all, I love driving it!!!

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