# 2005 Toyota Tundra 2WD Truck - Noise after cats

**URL:** <https://community.cartalk.com/t/2005-toyota-tundra-2wd-truck-noise-after-cats/153415>\
**Category:** Maintenance/Repairs\
**Tags:** toyota\
**Created:** [November 23, 2019, 8:33pm UTC](https://community.cartalk.com/t/2005-toyota-tundra-2wd-truck-noise-after-cats/153415 "2019-11-23T20:33:24Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![JeffersonKing](https://avatars.discourse-cdn.com/v4/letter/j/dbc845/32.png) [@JeffersonKing](https://community.cartalk.com/u/JeffersonKing)\
**Post date:** [November 23, 2019, 8:33pm UTC](https://community.cartalk.com/t/2005-toyota-tundra-2wd-truck-noise-after-cats/153415/1 "2019-11-23T20:33:24Z")

</div>

Since the repair shop replaced the 4 catalytic converters on my truck so it would pass the smog test, a vibration noise that sounds like it coming from the exhaust pipes occurs (when I’m stopped at a red light). However, if I put it in neutral, the noise goes away. What do you think the problem is?

---

<div class="post-metadata">

**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:** [November 24, 2019, 9:36pm UTC](https://community.cartalk.com/t/2005-toyota-tundra-2wd-truck-noise-after-cats/153415/2 "2019-11-24T21:36:17Z")

</div>

It sounds like an exhaust component is coming in contact with the frame/body of the truck.

Tester