# Idle rev up and down

**URL:** <https://community.cartalk.com/t/idle-rev-up-and-down/28191>\
**Category:** Maintenance/Repairs\
**Created:** [March 23, 2009, 3:48pm UTC](https://community.cartalk.com/t/idle-rev-up-and-down/28191 "2009-03-23T15:48:55Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![cj5](https://avatars.discourse-cdn.com/v4/letter/c/cab0a1/32.png) [@cj5](https://community.cartalk.com/u/cj5)\
**Post date:** [March 23, 2009, 3:48pm UTC](https://community.cartalk.com/t/idle-rev-up-and-down/28191/1 "2009-03-23T15:48:55Z")

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NO VACCUM LEAKS.CHANGED IDLE AIR CONTROL VAVLE.DEALER TO MUCH MONEY.PLEASE HELP

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**Author:** ![UncleTurbo](https://avatars.discourse-cdn.com/v4/letter/u/e9a140/32.png) [@UncleTurbo](https://community.cartalk.com/u/UncleTurbo)\
**Post date:** [March 23, 2009, 4:04pm UTC](https://community.cartalk.com/t/idle-rev-up-and-down/28191/2 "2009-03-23T16:04:08Z")

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Can’t help, no info, no answer.

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [March 23, 2009, 4:17pm UTC](https://community.cartalk.com/t/idle-rev-up-and-down/28191/3 "2009-03-23T16:17:18Z")

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I think that’s

CAN’T HELP.NO INFO.NO ANSWER.

How do you know there are no vacuum leaks? Did you put a gauge on it? Do a smoke test? Check the IAC valve wiring.

Put a fuel pressure gauge on it as well.

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**Author:** ![wizard](https://avatars.discourse-cdn.com/v4/letter/w/a87d85/32.png) [@wizard](https://community.cartalk.com/u/wizard)\
**Post date:** [March 23, 2009, 4:29pm UTC](https://community.cartalk.com/t/idle-rev-up-and-down/28191/4 "2009-03-23T16:29:22Z")

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Model, Year, Milage would help.

Quit screaming, we are not deaf!

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**Author:** ![cj5](https://avatars.discourse-cdn.com/v4/letter/c/cab0a1/32.png) [@cj5](https://community.cartalk.com/u/cj5)\
**Post date:** [March 23, 2009, 10:52pm UTC](https://community.cartalk.com/t/idle-rev-up-and-down/28191/5 "2009-03-23T22:52:42Z")

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I had it check for vaccum n smoke test. check the wiring.