Question about Cars & Trucks
You don't mention anything about make and model... but I would check the rear end grease level first. If that is empty, you may have scored some gears or burned some bearings. I hope this helps you, and that you have not damaged anything. This is why we service cars regularly, so that we discover problems before they cause difficulty. Good luck.
Posted on Mar 28, 2014
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Posted on Jan 02, 2017
check your rear end and make sure it has plenty of gear oil..if full then there is friction in it somewhere and it is probly getting ready to go out.
Posted on Dec 02, 2008
SOURCE: 2003 differential whine/noise
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
i had the same problem with shifting in too gears I changed the trans filter and oil with off brand from the parts store
then went to dodge dearl got the right one and right oil it works fine now . but now i have the sound coming from the rear end too I thinking its coming from the inner bearing ..
Posted on May 19, 2009
Yes, and it probably is your wheel bearing. Hearing a sound like a chain dragging is classic. You may also hear a clicking noise or chain dragging noise when turning to the left or right.
Look under the car and see if the rubber boots that surround the axle near the tires are cracked and leaking grease. If so, it is almost a certainty that the bearings are bad as you have lost grease and thus lubrication to the bearings.
Posted on May 28, 2009
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