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Dodge Cummins Experts - Need your HELP!

Discussion in 'Trucks and Trailers' started by A1 Grass, Apr 5, 2003.

  1. A1 Grass

    A1 Grass LawnSite Senior Member
    Posts: 330

    Just bought a 1992 Ext cab Cummins Turbo Diesel - Great shape - 150k miles. Here's the problem.

    I get a rumbling sound when I go around a corner or curve (feels like grinding - kinda). Just did new rear brakes - will check the fronts tomorrow. Feels like grinding, but doesn't sound like brakes. I assume it is happening at higher speeds, but I only notice it at lower speeds. It also happens if I coast around a corner or curve in neutral. Could this kind of thing be a transmission or drive shaft problem? The auto-trans shifts smoothly through all gears.

    Any ideas?????
  2. HOMER

    HOMER LawnSite Gold Member
    Posts: 3,183

    I have a 2000 but don't have that problem.

    Could it possibly be a wheel bearing? Sounds like your putting a load on something when the wheel is turned and the weight shift or loads up on that side.

    Tires not rubbing is it?
  3. Nozzleman

    Nozzleman LawnSite Member
    Posts: 225

    Is it 4WD or 2WD. My first guess would be wheel bearings also and With that many miles if they are the factory bearings it would be a good time to change them anyway. Now, if your truck is a 4X4 then it could be a few other possibilities such as a front differential problem but I would try the Wheel bearings first.

    Don't worry though because that Cummins has at least double that mileage left in her. I hope to keep my '03 Cummins that long or at least keep for a few years after it's payed for.
  4. mag360

    mag360 LawnSite Silver Member
    Posts: 2,446

    A1---that is the ultimate work truck---glad you stuck with dodge.

    Check if your truck has a limited slip rear---if it does the inside tire will skip a little when making turns---especially right turns (at least thats what mine does)

    So when do we see some pics?
  5. wjb

    wjb LawnSite Member
    from NJ
    Posts: 6

    Do you have oversized tires? They could be rubbing in the wheel wells when you turn.
  6. jsr2741

    jsr2741 LawnSite Senior Member
    Posts: 392

    A-1, since you now own the best diesel truck made, I would suggest you go to www.turbodieselregister.com, pay $30 bucks and become a member. Then ask that question on that site and I'll gurantee you you'll get the answer real quick.

    But based on the limited info you gave I would say wheel bearing.
  7. A1 Grass

    A1 Grass LawnSite Senior Member
    Posts: 330

    It's a 2wd.

    It does kinda feel like a wheel bearing.
  8. Lawnworks

    Lawnworks LawnSite Fanatic
    from usa
    Posts: 5,407

    The turbodieselregister has saved me alot of MONEY!!! Well worth the $30!!
  9. Nozzleman

    Nozzleman LawnSite Member
    Posts: 225

    I am also a TDR member and it is a invaluable source of information.
  10. Randy J

    Randy J LawnSite Bronze Member
    Posts: 1,124

    I vote for limited slip also. Whenever I service my (truck's) rear end, if I don't add a little friction modifier, I get that grinding/binding action you're talking about. If no limited slip, then I would guess wheel bearing.
    Good luck with the truck. Other than the rough ride, those are my favorite.


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