# Exhaust Clicks, Rattles, and Buzzes... **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [May 19, 2006, 10:30am UTC](https://forums.speedlife.net/t/exhaust-clicks-rattles-and-buzzes/12262 "2006-05-19T10:30:39Z")\ **Posts on this page:** 1\ **Showing post:** 9
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [May 19, 2006, 4:03pm UTC](https://forums.speedlife.net/t/exhaust-clicks-rattles-and-buzzes/12262/9 "2006-05-19T16:03:52Z")
buzz / rattle is often caused by a broken spotweld inside the muffler, causing a baffle to move with the exhaust pulses. sometimes the baffle just hits the housing, sometimes it hits other baffles. this type of noise id RPM dependant clicking on cool down - usualy caused by any 2 hot pieces of metal that are touching. most often heard at a manifold connection, or around the converter. this type of noise most often is nothing to worry about. its simply caused by a difference in expansion / contraction rates of 2 items that are bolted together --- _[View the full topic](https://forums.speedlife.net/t/exhaust-clicks-rattles-and-buzzes/12262)._