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  1. #1

    Default Chevy Silverado 2010 Differential Sound

    Hi,

    I own Chevy Silverado 2010 LT, Auto transmission.
    For last few days im hearing a humming sound from the front differential when the car is in auto.
    When i put it on 2WD there is no sound.

    What can be the problem. i checked the fluid level its ok.

    Any Suggestions?

  2. #2
    Legend

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    Default

    as the vehicle ages you will get some sound from the front diff when in auto or 4wd. also a slight vib .

    do not use this vehicle in any 4wd selection on dry solid pavement. this will cause damage to the drive train. only use 2wd high .

    also be sure to rotate the tires often 10-13K miles to ensure they are all at the same wear .

  3. #3

    Default

    Thanks J. Cat for the suggestion, I have new tires and I'm not a off road guy. The car is on 78,000km.

    Any other thing which I can change and fix the problem?





    Quote Originally Posted by j cat View Post
    as the vehicle ages you will get some sound from the front diff when in auto or 4wd. also a slight vib .

    do not use this vehicle in any 4wd selection on dry solid pavement. this will cause damage to the drive train. only use 2wd high .

    also be sure to rotate the tires often 10-13K miles to ensure they are all at the same wear .

  4. #4

    Default

    Quote Originally Posted by Majed View Post
    Thanks J. Cat for the suggestion, I have new tires and I'm not a off road guy. The car is on 78,000km.

    Any other thing which I can change and fix the problem?
    You can change the fluid in your front diff. You have about 50000 miles on it, so now would be a good time. I have an 05 with a new front diff and new transfer case. I get the same noise you describe in auto and in 4wd. I only use 4wd, I never use auto. I only use 4wd when there are 6+ inches of fresh snow.

    1995 Silverado 4x4
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  5. #5
    Legend

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    the drive train fluids should be checked at every oil change for level and color.

    when my silverado was new I had to replace the front diff fluid every 5,ooo miles 3X then the oil stayed clean. I was getting a discoloration of the oil. after that I replace at the 40,000 mi mark with just normal light duty trucking..

  6. #6

    Default

    The vehicle the OP has is still under the 5 year 100K mile powertrain warranty. Take it to the dealer and let them look at it.

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  7. #7

    Default

    I changed the fluid but still the same...

    I will take it to the dealer but it will cost me fortune just to have checked up. :(

  8. #8

    Default

    Quote Originally Posted by Majed View Post
    I changed the fluid but still the same...

    I will take it to the dealer but it will cost me fortune just to have checked up. :(
    If you are under 100,000 miles it will be covered under power train warranty as @j cat mentioned.

  9. #9

    Default

    sure i will give a try from the dealer.

  10. #10
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    Quote Originally Posted by Majed View Post
    sure i will give a try from the dealer.
    my guess is this is normal. have the dealership go with you for a short ride and most likely this will be just a normal sound with this in 4wd....

    If your from canada you may have to pay .. with your mileage what drive train fluids have you replaced ? did you have the rear diff cover removed cleaned and the oil replaced .

    normal hum from the rear diff is also the norm.... replacing the rear diff fluid and cleaning out the box/magnet causes the rear diff to work faster and more efficiently.

    good luck ...

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