# Silverado Rumbling

**URL:** <https://community.cartalk.com/t/silverado-rumbling/10536>\
**Category:** Maintenance/Repairs\
**Created:** [February 11, 2008, 8:48pm UTC](https://community.cartalk.com/t/silverado-rumbling/10536 "2008-02-11T20:48:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![seamus](https://avatars.discourse-cdn.com/v4/letter/s/2bfe46/32.png) [@seamus](https://community.cartalk.com/u/seamus)\
**Post date:** [February 11, 2008, 8:48pm UTC](https://community.cartalk.com/t/silverado-rumbling/10536/1 "2008-02-11T20:48:58Z")

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I have a 2007 Silverado 1500 classic, 4x2, AT, V6. Sometimes at 40-45 mph I hear a rumble…like it needs to downshift.  
  
 Sound familiar to anyone? Should I be concerned?

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**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\
**Post date:** [February 12, 2008, 2:43am UTC](https://community.cartalk.com/t/silverado-rumbling/10536/2 "2008-02-12T02:43:01Z")

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Noises are very hard to diagnose on the Net.

What I would do is go to a dealer and test drive another identical truck and see for yourself.

It’s under warranty right?

Investigating and diagnosing strange noises, vibrations, etc. is foremost in preventive maintenance. Always be concerned to some degree.