# Strange hum coming from front end

**URL:** <https://community.cartalk.com/t/strange-hum-coming-from-front-end/170307>\
**Category:** Maintenance/Repairs\
**Tags:** mercury, sable, noises\
**Created:** [September 23, 2020, 5:29pm UTC](https://community.cartalk.com/t/strange-hum-coming-from-front-end/170307 "2020-09-23T17:29:00Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![SpudMuffin](https://avatars.discourse-cdn.com/v4/letter/s/ce73a5/32.png) [@SpudMuffin](https://community.cartalk.com/u/SpudMuffin)\
**Post date:** [September 23, 2020, 5:29pm UTC](https://community.cartalk.com/t/strange-hum-coming-from-front-end/170307/1 "2020-09-23T17:29:01Z")

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Just replaced the front struts. Had an issue during the procedure with the right side axle intermediate. Had to replace the axle because I pulled it apart. I completed the job successfully but now when I get over 55 mph there is a cycling hum that’s coming from the front end and a slight humming vibration that transfers through the floor and steering wheel. When I turn slightly to the left it goes away. When I swerve to the right the hum gets somewhat louder. When I get down below 55 mph I can’t hear it any longer. Above 55 the pitch of the hum increases as I increase speed.

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**Author:** ![COROLLAGUY1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/corollaguy1/32/7575_2.png) [@COROLLAGUY1](https://community.cartalk.com/u/COROLLAGUY1)\
**Post date:** [September 23, 2020, 7:47pm UTC](https://community.cartalk.com/t/strange-hum-coming-from-front-end/170307/2 "2020-09-23T19:47:56Z")

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Did you check the wheel bearings?

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**Author:** ![SpudMuffin](https://avatars.discourse-cdn.com/v4/letter/s/ce73a5/32.png) [@SpudMuffin](https://community.cartalk.com/u/SpudMuffin)\
**Post date:** [September 24, 2020, 2:27am UTC](https://community.cartalk.com/t/strange-hum-coming-from-front-end/170307/3 "2020-09-24T02:27:16Z")

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Was thinking that… But not sure which side would most likely be the culprit. Also, it doesn’t have the usual grinding rumble… This is more of a 170hz sound.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [September 24, 2020, 2:53am UTC](https://community.cartalk.com/t/strange-hum-coming-from-front-end/170307/4 "2020-09-24T02:53:46Z")

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So what you’re saying is, you didn’t check if a wheel bearing is worn?

Tester

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**Author:** ![SpudMuffin](https://avatars.discourse-cdn.com/v4/letter/s/ce73a5/32.png) [@SpudMuffin](https://community.cartalk.com/u/SpudMuffin)\
**Post date:** [September 27, 2020, 5:41am UTC](https://community.cartalk.com/t/strange-hum-coming-from-front-end/170307/5 "2020-09-27T05:41:51Z")

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There is no play in them… However, in putting the swing arm back on I laid a 2x10 on the lug studs and hammered it… So, was thinking maybe I flattened some of the bearings…?

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**Author:** ![galant](https://avatars.discourse-cdn.com/v4/letter/g/77aa72/32.png) [@galant](https://community.cartalk.com/u/galant)\
**Post date:** [September 27, 2020, 5:54am UTC](https://community.cartalk.com/t/strange-hum-coming-from-front-end/170307/6 "2020-09-27T05:54:28Z")

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Bearing was the first thought, but, since you changed the axle, I will check and make sure everything is seated properly.