# 2004 Chevy Impala - Delayed Acceleration from Stop

**URL:** <https://community.cartalk.com/t/2004-chevy-impala-delayed-acceleration-from-stop/28945>\
**Category:** Maintenance/Repairs\
**Tags:** acceleration, start\
**Created:** [April 10, 2009, 2:46pm UTC](https://community.cartalk.com/t/2004-chevy-impala-delayed-acceleration-from-stop/28945 "2009-04-10T14:46:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ecal001](https://avatars.discourse-cdn.com/v4/letter/e/b3f665/32.png) [@ecal001](https://community.cartalk.com/u/ecal001)\
**Post date:** [April 10, 2009, 2:46pm UTC](https://community.cartalk.com/t/2004-chevy-impala-delayed-acceleration-from-stop/28945/1 "2009-04-10T14:46:38Z")

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I live in Phoenix, AZ and I have a 2004 Chevy Impala (90K miles) and I have noticed recently that in the mornings when I drive my daughter to school, I wait at a stop light close to my home and when it turns green, I accelerate and there’s no immediate response. After a couple seconds of nothing, it kicks into gear and begins accelerating. I recently had a new fuel regulator installed last fall so I am not sure if that has anything to do with it. The mornings and evenings aren’t freezing so the weather shouldn’t have an affect on its performance. Any help/suggestions?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [April 10, 2009, 2:52pm UTC](https://community.cartalk.com/t/2004-chevy-impala-delayed-acceleration-from-stop/28945/2 "2009-04-10T14:52:00Z")

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If you mean that when you step on the accelerator, the engine revs but the vehicle doesn’t move, and then it goes into gear and the vehicle starts moving, that’s a slipping transmission. Check the level and condition of the transmission fluid according to the owners manual.

Tester

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**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\
**Post date:** [April 10, 2009, 3:00pm UTC](https://community.cartalk.com/t/2004-chevy-impala-delayed-acceleration-from-stop/28945/3 "2009-04-10T15:00:06Z")

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If, on the other hand, you step on the accelerator and the engine rpm does not increase it’s a throttle problem. In this case I’d have the TPS (throttle position sensor) tested as a first step.