# 97' Mercury Mystic

**URL:** <https://community.cartalk.com/t/97-mercury-mystic/25026>\
**Category:** Maintenance/Repairs\
**Created:** [January 16, 2009, 5:44pm UTC](https://community.cartalk.com/t/97-mercury-mystic/25026 "2009-01-16T17:44:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![grejohn](https://avatars.discourse-cdn.com/v4/letter/g/6f9a4e/32.png) [@grejohn](https://community.cartalk.com/u/grejohn)\
**Post date:** [January 16, 2009, 5:44pm UTC](https://community.cartalk.com/t/97-mercury-mystic/25026/1 "2009-01-16T17:44:50Z")

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The car idles rough, like a vibration. It has 79,500 miles. What could be the problem please. I would like to fix the problem myself if I could.

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**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\
**Post date:** [January 16, 2009, 5:54pm UTC](https://community.cartalk.com/t/97-mercury-mystic/25026/2 "2009-01-16T17:54:19Z")

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She needs a fresh set of spark plugs, an air filter, and a fuel filter (if accessable).

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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:** [January 16, 2009, 6:37pm UTC](https://community.cartalk.com/t/97-mercury-mystic/25026/3 "2009-01-16T18:37:42Z")

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In addition to hellokit’s suggestions I would add cleaning the Idle Air Control valve.

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**Author:** ![grejohn](https://avatars.discourse-cdn.com/v4/letter/g/6f9a4e/32.png) [@grejohn](https://community.cartalk.com/u/grejohn)\
**Post date:** [January 16, 2009, 7:47pm UTC](https://community.cartalk.com/t/97-mercury-mystic/25026/4 "2009-01-16T19:47:10Z")

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Thanx to both of you. I will try those ideas.