# Jerking and Jumping

**URL:** <https://community.cartalk.com/t/jerking-and-jumping/50551>\
**Category:** Maintenance/Repairs\
**Tags:** suburban, gmc\
**Created:** [June 19, 2010, 3:12pm UTC](https://community.cartalk.com/t/jerking-and-jumping/50551 "2010-06-19T15:12:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mjsurfs](https://avatars.discourse-cdn.com/v4/letter/m/a88e57/32.png) [@mjsurfs](https://community.cartalk.com/u/mjsurfs)\
**Post date:** [June 19, 2010, 3:12pm UTC](https://community.cartalk.com/t/jerking-and-jumping/50551/1 "2010-06-19T15:12:59Z")

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My 1995 GMC Suburban recently had a tune up and after a couple weeks is now giving me an odd problem. The problem is when stopped or driving at low speeds the car will jerk, shake, and jump. At higher speeds it does fine. What could be the problem?

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**Author:** ![ignoramus9](https://avatars.discourse-cdn.com/v4/letter/i/d07c76/32.png) [@ignoramus9](https://community.cartalk.com/u/ignoramus9)\
**Post date:** [June 19, 2010, 5:40pm UTC](https://community.cartalk.com/t/jerking-and-jumping/50551/2 "2010-06-19T17:40:29Z")

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A vacume line may have come loose durring the tuneup.