# 2017 Nissan Altima plastic on metal rattle sound only on large bumps **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** nissan, noises\ **Created:** [February 16, 2021, 5:10pm UTC](https://community.cartalk.com/t/2017-nissan-altima-plastic-on-metal-rattle-sound-only-on-large-bumps/175114 "2021-02-16T17:10:50Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![mmolkentin98](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@mmolkentin98](https://community.cartalk.com/u/mmolkentin98)\ **Post date:** [February 16, 2021, 5:10pm UTC](https://community.cartalk.com/t/2017-nissan-altima-plastic-on-metal-rattle-sound-only-on-large-bumps/175114/1 "2021-02-16T17:10:50Z")
Hello, For the past few weeks I’ve been hearing this loud rattle sound coming from the rear right when that wheel hits a large bump. It definitely sounds like something plastic hitting something metal. I drove around with my dad driving while I was in the trunk to try to find where the noise is coming from and couldn’t find it. And it only happens when there is a large bump and when the right rear wheel hits it. Sometimes it’s only one rattle other times it’s a few really quick. We looked online and the most common theory for a rattle is the trunk torsion bars but they’re secure and even when I was in the trunk I held onto them and the noise still happened. It’s a very annoying noise and if someone has an idea that they’d like to share that would be awesome! Thank you! Max ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [February 16, 2021, 5:47pm UTC](https://community.cartalk.com/t/2017-nissan-altima-plastic-on-metal-rattle-sound-only-on-large-bumps/175114/2 "2021-02-16T17:47:00Z")
Bad shock top mount, or bad shock is my first guess. A wild guess…'cause I can’t hear it in person, and no, a video won’t help… I need to hear the direction of the sound and feel it with my hands. Could also be something under the car that is loose or worn out- stabilizer bar links, bushings ect. Get the car on a lift so you can look underneath and find the issue. Or pay a shop to do that. They have cool tools that can help isolate noises. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [February 16, 2021, 6:00pm UTC](https://community.cartalk.com/t/2017-nissan-altima-plastic-on-metal-rattle-sound-only-on-large-bumps/175114/3 "2021-02-16T18:00:00Z")
Just as a caution if the vehicle were to be rear ended by another vehicle riding in the truck would be one of the last places a person should be . ---
**Author:** ![mmolkentin98](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@mmolkentin98](https://community.cartalk.com/u/mmolkentin98)\ **Post date:** [February 16, 2021, 7:29pm UTC](https://community.cartalk.com/t/2017-nissan-altima-plastic-on-metal-rattle-sound-only-on-large-bumps/175114/5 "2021-02-16T19:29:37Z")
Sweet! Thank you! I’ll definitely check those things out ---
**Author:** ![mmolkentin98](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@mmolkentin98](https://community.cartalk.com/u/mmolkentin98)\ **Post date:** [February 16, 2021, 7:30pm UTC](https://community.cartalk.com/t/2017-nissan-altima-plastic-on-metal-rattle-sound-only-on-large-bumps/175114/6 "2021-02-16T19:30:17Z")
Yeah we made sure to be careful and to use side streets that weren’t busy