# 2007 Subaru Forester - Knocks **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** subaru\ **Created:** [October 19, 2019, 8:43pm UTC](https://community.cartalk.com/t/2007-subaru-forester-knocks/151098 "2019-10-19T20:43:13Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![David111](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@David111](https://community.cartalk.com/u/David111)\ **Post date:** [October 19, 2019, 8:43pm UTC](https://community.cartalk.com/t/2007-subaru-forester-knocks/151098/1 "2019-10-19T20:43:13Z")
Engine knocking during acceleration. ---
**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\ **Post date:** [October 19, 2019, 8:57pm UTC](https://community.cartalk.com/t/2007-subaru-forester-knocks/151098/2 "2019-10-19T20:57:01Z")
Are you using the proper gasoline ? ---
**Author:** ![David111](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@David111](https://community.cartalk.com/u/David111)\ **Post date:** [October 19, 2019, 9:23pm UTC](https://community.cartalk.com/t/2007-subaru-forester-knocks/151098/3 "2019-10-19T21:23:15Z")
I tried high test but it did not affect the knocking. ---
**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 19, 2019, 11:49pm UTC](https://community.cartalk.com/t/2007-subaru-forester-knocks/151098/4 "2019-10-19T23:49:28Z")
Ok, then you have a rod knock and the engine is about to seize up solid. Pretty scary diagnosis… but you didn’t tell us any information about the car, its mileage, condition, anything about the knock. If you want a better guess, give us better information.