# Rattle from engine when holding same speed

**URL:** <https://community.cartalk.com/t/rattle-from-engine-when-holding-same-speed/152732>\
**Category:** Maintenance/Repairs\
**Tags:** toyota\
**Created:** [November 13, 2019, 10:37pm UTC](https://community.cartalk.com/t/rattle-from-engine-when-holding-same-speed/152732 "2019-11-13T22:37:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dogtroscious\_159777](https://avatars.discourse-cdn.com/v4/letter/d/ebca7d/32.png) [@dogtroscious\_159777](https://community.cartalk.com/u/dogtroscious_159777)\
**Post date:** [November 13, 2019, 10:37pm UTC](https://community.cartalk.com/t/rattle-from-engine-when-holding-same-speed/152732/1 "2019-11-13T22:37:31Z")

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I have a Matrix with 150,000mi on it, and it runs just perfectly, but makes a rattle sound when I hold at any speed, in gear. It doesn’t rattle when idling in neutral, with clutch depressed, or accelerating decently. Only holding at a certain speed, AND it can do it when I start in first. Any ideas?

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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:** [November 13, 2019, 10:41pm UTC](https://community.cartalk.com/t/rattle-from-engine-when-holding-same-speed/152732/2 "2019-11-13T22:41:38Z")

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A loose exhaust heat shield can start to rattle at a certain frequency.

Tester

.