# Rough idle

**URL:** <https://community.cartalk.com/t/rough-idle/35283>\
**Category:** Maintenance/Repairs\
**Tags:** millenia, rough, mazda\
**Created:** [August 19, 2009, 5:34pm UTC](https://community.cartalk.com/t/rough-idle/35283 "2009-08-19T17:34:10Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![lovefiat](https://avatars.discourse-cdn.com/v4/letter/l/e99b99/32.png) [@lovefiat](https://community.cartalk.com/u/lovefiat)\
**Post date:** [August 19, 2009, 5:34pm UTC](https://community.cartalk.com/t/rough-idle/35283/1 "2009-08-19T17:34:10Z")

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my car is non turbo it idles rough, I changed the plugs had the timing belt and all other belts were replaced. before i go and replace the wires is there something that I am missing. had

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [August 19, 2009, 5:41pm UTC](https://community.cartalk.com/t/rough-idle/35283/2 "2009-08-19T17:41:14Z")

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Has anyone checked the motor mounts?

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**Author:** ![lovefiat](https://avatars.discourse-cdn.com/v4/letter/l/e99b99/32.png) [@lovefiat](https://community.cartalk.com/u/lovefiat)\
**Post date:** [August 19, 2009, 5:44pm UTC](https://community.cartalk.com/t/rough-idle/35283/3 "2009-08-19T17:44:14Z")

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Thank you, my brother said the same thing I will do that this weekend, but would that affect the RPMs as well?

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**Author:** ![lovefiat](https://avatars.discourse-cdn.com/v4/letter/l/e99b99/32.png) [@lovefiat](https://community.cartalk.com/u/lovefiat)\
**Post date:** [August 19, 2009, 5:49pm UTC](https://community.cartalk.com/t/rough-idle/35283/4 "2009-08-19T17:49:33Z")

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Thank you, my brother said the same thing I will do that this weekend, but would that affect the RPMs as well?

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [August 19, 2009, 5:50pm UTC](https://community.cartalk.com/t/rough-idle/35283/5 "2009-08-19T17:50:36Z")

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It could, depending upon just how bad a condition the mounts are in.

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<div class="post-metadata">

**Author:** ![lovefiat](https://avatars.discourse-cdn.com/v4/letter/l/e99b99/32.png) [@lovefiat](https://community.cartalk.com/u/lovefiat)\
**Post date:** [August 19, 2009, 6:02pm UTC](https://community.cartalk.com/t/rough-idle/35283/6 "2009-08-19T18:02:41Z")

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Thank very much, could it be possible that the mounts would go with only 86,000 miles on it?

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<div class="post-metadata">

**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [August 19, 2009, 7:23pm UTC](https://community.cartalk.com/t/rough-idle/35283/7 "2009-08-19T19:23:34Z")

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Absolutely. I had to replace the “dogbone” front motor mount on a Chevy with only about 60k on the odometer.

And, if the engine ever had a serious oil leak, that makes it even more likely for the rubber in the motor mounts to have deteriorated by 86k. Is there a lot of oil on the engine and other areas under the hood?