# 2004 Buick Park Avenue - Thumping Gear Engagement

**URL:** <https://community.cartalk.com/t/2004-buick-park-avenue-thumping-gear-engagement/151721>\
**Category:** Maintenance/Repairs\
**Created:** [October 29, 2019, 5:32pm UTC](https://community.cartalk.com/t/2004-buick-park-avenue-thumping-gear-engagement/151721 "2019-10-29T17:32:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![artlong](https://avatars.discourse-cdn.com/v4/letter/a/858c86/32.png) [@artlong](https://community.cartalk.com/u/artlong)\
**Post date:** [October 29, 2019, 5:32pm UTC](https://community.cartalk.com/t/2004-buick-park-avenue-thumping-gear-engagement/151721/1 "2019-10-29T17:32:56Z")

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there is a thump when down shifting to first gear and when put in reverse at times

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**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:** [October 29, 2019, 6:39pm UTC](https://community.cartalk.com/t/2004-buick-park-avenue-thumping-gear-engagement/151721/2 "2019-10-29T18:39:00Z")

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You should have that looked at by a mechanic. Could be engine mounts, cv joints, a transmission problem… really a lot of things.