# I'm bouncing in my F150

**URL:** <https://community.cartalk.com/t/im-bouncing-in-my-f150/15472>\
**Category:** Maintenance/Repairs\
**Created:** [June 17, 2008, 5:06pm UTC](https://community.cartalk.com/t/im-bouncing-in-my-f150/15472 "2008-06-17T17:06:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![beegswim](https://avatars.discourse-cdn.com/v4/letter/b/59ef9b/32.png) [@beegswim](https://community.cartalk.com/u/beegswim)\
**Post date:** [June 17, 2008, 5:06pm UTC](https://community.cartalk.com/t/im-bouncing-in-my-f150/15472/1 "2008-06-17T17:06:41Z")

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I have a 1999 F 150 with 130,000 miles. Without notice the backend began to “bounce” at about 40 MPH, no problem below or above 40 MPH. What is happening?

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**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, 2008, 5:12pm UTC](https://community.cartalk.com/t/im-bouncing-in-my-f150/15472/2 "2008-06-17T17:12:51Z")

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If these are the original shocks, they are WAY overdue for a change. The good news is that they’re shocks and shocks are far cheaper and easier to change than struts.

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**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\
**Post date:** [June 17, 2008, 10:27pm UTC](https://community.cartalk.com/t/im-bouncing-in-my-f150/15472/3 "2008-06-17T22:27:46Z")

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Check for a big lump on one of your tires