# 99 suburban noise

**URL:** <https://community.cartalk.com/t/99-suburban-noise/9048>\
**Category:** Maintenance/Repairs\
**Created:** [January 5, 2008, 6:55pm UTC](https://community.cartalk.com/t/99-suburban-noise/9048 "2008-01-05T18:55:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kutman](https://avatars.discourse-cdn.com/v4/letter/k/5f9b8f/32.png) [@Kutman](https://community.cartalk.com/u/Kutman)\
**Post date:** [January 5, 2008, 6:55pm UTC](https://community.cartalk.com/t/99-suburban-noise/9048/1 "2008-01-05T18:55:31Z")

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I have a noise coming from my suburban. The noise starts at about 20mph. The faster I go the louder it gets. If I put on the cruise or stay on the throttle the noise is there, but as soon as I turn off cruise or let off the gas pedal the noise goes away after a couple of seconds. I replaced the u-joints on both shafts. I checked the fluids. I have no movement on the front shaft up or down. The back shaft moves up and down a little. Could the bearings in transfer case be bad?

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**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\
**Post date:** [January 6, 2008, 1:57am UTC](https://community.cartalk.com/t/99-suburban-noise/9048/2 "2008-01-06T01:57:46Z")

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Differential?

Which end of the vehicle is the noise coming from?

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**Author:** ![Kutman](https://avatars.discourse-cdn.com/v4/letter/k/5f9b8f/32.png) [@Kutman](https://community.cartalk.com/u/Kutman)\
**Post date:** [January 6, 2008, 2:44am UTC](https://community.cartalk.com/t/99-suburban-noise/9048/3 "2008-01-06T02:44:32Z")

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sounds like it is coming from the middle underneath.