Question about 2003 Cadillac Escalade

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2003 differential whine/noise

Vehicle has 70 k miles, all whell drive. The gears were replaced a year ago. Over the past 3 months we notice that when the vehicle speed is 35-40plus, and you take your foot off the gas, the front end whines. As soon as you give it gas again, the sound, while still faintly there is hardly noticable. he same shop who replaced the gears suggests that cadillac told him it was a normal sound to have the hum/whine from the front end. I do not recall hearing it until recently.
Is this normal????

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  • Anonymous Feb 09, 2009

    I have gear whine or hum! When taking foot off of gas the sound gets more pronounced. For a Cadillac that rides smooth and quiet this is annoying! Cadillac dealer says front differential bearing is going out and should be replaced soon. Cadillac is expensive for this repair anybody else does this repair at a more affordable price and reliable?

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The last time I had a hum coming out of the area of the differential it was an inside axle bearing going bad. In my case there were four bearings (one on each end of each axle). It was a Toyota. We changed one bearing after listening very carefully and guessed right. I don't know if Cadillac is built similar in this regard but I'm thinking it may be. It was a speed sensitive hum sound like you describe.

Posted on Dec 27, 2008

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I have the same problem with my 03 escalade and was told that I need to change differential. Used is about $1100 so I'm still confused what to do. Can it be rebuilt??

Posted on Feb 02, 2011

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I have an 03 with the same problem. At 38k the dealer replaced the gears, bearings, seals, etc. Now the vehicle has 68 k and the gears are shot again. This seems to be an inherent problem with the front axles. I guess thats what I get for buying a Cadillac

Posted on Oct 10, 2010

  • Robert Wright Oct 10, 2011

    our 2003 escalade has had the front differential replaced three times. The last two times, there was only 17k additional miles between changes. Another 27k miles since the last change-out and it is whining again. I think Cadillac needs to fix this at their cost, and come-up with a permanent fix.

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