# 2004 Aveo intermittent misfire problem

**URL:** <https://community.cartalk.com/t/2004-aveo-intermittent-misfire-problem/87743>\
**Category:** Maintenance/Repairs\
**Created:** [October 20, 2014, 7:06am UTC](https://community.cartalk.com/t/2004-aveo-intermittent-misfire-problem/87743 "2014-10-20T07:06:55Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Idaho\_Jo](https://avatars.discourse-cdn.com/v4/letter/i/3be4f8/32.png) [@Idaho\_Jo](https://community.cartalk.com/u/Idaho_Jo)\
**Post date:** [October 20, 2014, 7:06am UTC](https://community.cartalk.com/t/2004-aveo-intermittent-misfire-problem/87743/1 "2014-10-20T07:06:55Z")

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My 2004 Chev Aveo has recently developed a strange misfire pattern. I am hoping to get some clues before I take it to a mechanic. It only misfires when at an idle and then again between 50 and 55 mph going up an incline. Above 55, it runs fine. Between 5 and 50, it runs fine. It has 109,000 miles and had the timing belt changed at 90,000. Any ideas of what would be causing this?

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**Author:** ![dodge330](https://avatars.discourse-cdn.com/v4/letter/d/ec9cab/32.png) [@dodge330](https://community.cartalk.com/u/dodge330)\
**Post date:** [October 20, 2014, 8:41am UTC](https://community.cartalk.com/t/2004-aveo-intermittent-misfire-problem/87743/2 "2014-10-20T08:41:56Z")

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It sounds like a coil pack problem or a spark plug wire issue.

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**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [October 20, 2014, 2:10pm UTC](https://community.cartalk.com/t/2004-aveo-intermittent-misfire-problem/87743/3 "2014-10-20T14:10:51Z")

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I agree. When was the last time the spark plugs were changed out?

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [October 20, 2014, 5:46pm UTC](https://community.cartalk.com/t/2004-aveo-intermittent-misfire-problem/87743/4 "2014-10-20T17:46:22Z")

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I concur with both comments. A good mechanic will find this problem rather quickly.

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**Author:** ![Idaho\_Jo](https://avatars.discourse-cdn.com/v4/letter/i/3be4f8/32.png) [@Idaho\_Jo](https://community.cartalk.com/u/Idaho_Jo)\
**Post date:** [October 20, 2014, 6:46pm UTC](https://community.cartalk.com/t/2004-aveo-intermittent-misfire-problem/87743/5 "2014-10-20T18:46:35Z")

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Thank you for the help. I’ll have it checked out. Plugs were changed at 90,000, but I don’t know about the wires.