# Cadillac humming noise **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [June 15, 2009, 2:05am UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897 "2009-06-15T02:05:38Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![dartos](https://avatars.discourse-cdn.com/v4/letter/d/ecb155/32.png) [@dartos](https://community.cartalk.com/u/dartos)\ **Post date:** [June 15, 2009, 2:05am UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/1 "2009-06-15T02:05:38Z")
10 yr old, 100,000 miles, Cadillac Escalade developed a humming sound in the front when going 48 mph or faster. Sound is either on or off, and volume does not change with increased speed. Dealer shop thinks it drive train, but can’t find the cause. Any thoughts? Thanks ---
**Author:** ![Xebadaih](https://avatars.discourse-cdn.com/v4/letter/x/d07c76/32.png) [@Xebadaih](https://community.cartalk.com/u/Xebadaih)\ **Post date:** [June 15, 2009, 3:00am UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/2 "2009-06-15T03:00:49Z")
The top two causes of a steady hum at highway speeds are irregularly worn tires or wheel bearings. Does the sound change when going around curves? ---
**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\ **Post date:** [June 15, 2009, 3:08am UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/3 "2009-06-15T03:08:16Z")
It may sound simplistic but see if the noise goes away if you remove the radio antenna. ---
**Author:** ![dartos](https://avatars.discourse-cdn.com/v4/letter/d/ecb155/32.png) [@dartos](https://community.cartalk.com/u/dartos)\ **Post date:** [June 15, 2009, 11:07pm UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/4 "2009-06-15T23:07:32Z")
The tires are a little wavy, but OK. The noise will stop on a curve, but only if I slow down to 45 nph. Why do you ask about curves? ---
**Author:** ![dartos](https://avatars.discourse-cdn.com/v4/letter/d/ecb155/32.png) [@dartos](https://community.cartalk.com/u/dartos)\ **Post date:** [June 15, 2009, 11:10pm UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/5 "2009-06-15T23:10:37Z")
It does sound like wind sound. I’ll take off the anteanna and see. ---
**Author:** ![dartos](https://avatars.discourse-cdn.com/v4/letter/d/ecb155/32.png) [@dartos](https://community.cartalk.com/u/dartos)\ **Post date:** [June 16, 2009, 12:03am UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/6 "2009-06-16T00:03:55Z")
It’s not the anteanna. But that makes me think. They adjusted the hood latch, because hood would pop up an inch, then slam down, when I met an oncoming semi on a 2 lane road. Maybe the hood has a slight gap that makes the noise from the wind? If we get a windstorm in Peoria, I’ll see if that makes a difference. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [June 17, 2009, 7:18pm UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/7 "2009-06-17T19:18:55Z")
You say your tires are worn “a little wavy”? That’s all it takes to create road noise. Try switching the fronts with the rears and see if the noise changes. ---
**Author:** ![dartos](https://avatars.discourse-cdn.com/v4/letter/d/ecb155/32.png) [@dartos](https://community.cartalk.com/u/dartos)\ **Post date:** [June 17, 2009, 7:40pm UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/8 "2009-06-17T19:40:44Z")
I had them rotated twice, once by Cadillac dealer and once by my tire store. Noise didn’t change. Cadillac dealer had the car for the third time, and said they don’t know what it is, but all systems are GO, and I should not have any functional problem. I’ll take it on a 400 mile trip, and report back. Thanks for your input. dartos ---
**Author:** ![dartos](https://avatars.discourse-cdn.com/v4/letter/d/ecb155/32.png) [@dartos](https://community.cartalk.com/u/dartos)\ **Post date:** [June 22, 2009, 9:12pm UTC](https://community.cartalk.com/t/cadillac-humming-noise/31897/9 "2009-06-22T21:12:08Z")
Just drove 400 miles. Noise still there, but car functioned well.