# RPM Surge

**URL:** <https://community.cartalk.com/t/rpm-surge/50626>\
**Category:** Maintenance/Repairs\
**Tags:** impreza, subaru\
**Created:** [June 21, 2010, 2:26am UTC](https://community.cartalk.com/t/rpm-surge/50626 "2010-06-21T02:26:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Impreza](https://avatars.discourse-cdn.com/v4/letter/i/9fc29f/32.png) [@Impreza](https://community.cartalk.com/u/Impreza)\
**Post date:** [June 21, 2010, 2:26am UTC](https://community.cartalk.com/t/rpm-surge/50626/1 "2010-06-21T02:26:43Z")

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My son has a 2004 Impreza WRX. Recently, he’s been having a problem when he gets into a stop and go driving situation. The RPMs will surge and the car temporarily has a drop in power. While driving along at normal highway speeds, everything is fine.

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**Author:** ![Goldwing](https://avatars.discourse-cdn.com/v4/letter/g/e68b1a/32.png) [@Goldwing](https://community.cartalk.com/u/Goldwing)\
**Post date:** [June 21, 2010, 3:03am UTC](https://community.cartalk.com/t/rpm-surge/50626/2 "2010-06-21T03:03:56Z")

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Is the engine misbehaving or is it the transmission? Manual or automatic tranny?