# What causes power loss in my 2006 Subaru Forester? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** forester, subaru\ **Created:** [June 3, 2020, 11:14am UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250 "2020-06-03T11:14:19Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Herman17](https://avatars.discourse-cdn.com/v4/letter/h/8e8cbc/32.png) [@Herman17](https://community.cartalk.com/u/Herman17)\ **Post date:** [June 3, 2020, 11:14am UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250/1 "2020-06-03T11:14:20Z")
what causes lost of power when climbing hills? ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [June 4, 2020, 10:27am UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250/2 "2020-06-04T10:27:04Z")
You need to tell us more. Is the transmission down shifting appropriately? Is the CEL on? ---
**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:** [June 4, 2020, 11:17am UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250/3 "2020-06-04T11:17:59Z")
Because you aren’t downshifting your manual transmission. ---
**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\ **Post date:** [June 4, 2020, 11:28am UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250/4 "2020-06-04T11:28:45Z")
I would say OP feels car is not driving like normal. Why? Who knows ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [June 4, 2020, 12:18pm UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250/5 "2020-06-04T12:18:04Z")
> [@Purebred](#): > > You need to tell us more. > Is the transmission down shifting appropriately? > Is the CEL on? Plus… How many miles are on the odometer? Has the vehicle been maintained at least as well as is specified in the mfr’s maintenance schedule? For example… when were the spark plugs last replaced? ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [June 4, 2020, 9:01pm UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250/6 "2020-06-04T21:01:32Z")
More info is needed as right now none is provided. It could be an engine performance issue or could be slippage in the drive train. First meaning a clogged converter, etc and second could be a slipping manual trans clutch or slipping clutches in an automatic transmission. Check Engine Light on or anything? Worst case scenarios are a worn out engine or worn out automatic transmission. Or both. ---
**Author:** ![PvtPublic](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/pvtpublic/32/13089_2.png) [@PvtPublic](https://community.cartalk.com/u/PvtPublic)\ **Post date:** [June 4, 2020, 9:39pm UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250/7 "2020-06-04T21:39:38Z")
It’s just trying to tell you it is old and tired, and has had enough of this hill climbing garbage. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [June 4, 2020, 9:40pm UTC](https://community.cartalk.com/t/what-causes-power-loss-in-my-2006-subaru-forester/165250/8 "2020-06-04T21:40:53Z")
> [@PvtPublic](#): > > It’s just trying to tell you it is old and tired … or it has not been adequately maintained… or… ?