# Idle Way Too High Upon Starting

**URL:** <https://community.cartalk.com/t/idle-way-too-high-upon-starting/1457>\
**Category:** Maintenance/Repairs\
**Created:** [July 9, 2007, 2:23am UTC](https://community.cartalk.com/t/idle-way-too-high-upon-starting/1457 "2007-07-09T02:23:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![caroliver](https://avatars.discourse-cdn.com/v4/letter/c/c2a13f/32.png) [@caroliver](https://community.cartalk.com/u/caroliver)\
**Post date:** [July 9, 2007, 2:23am UTC](https://community.cartalk.com/t/idle-way-too-high-upon-starting/1457/1 "2007-07-09T02:23:01Z")

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Hello, or maybe I should start by saying: HELP! My 2004 Jeep Grand Cherokee, 6 cylinder, has started idling at 2,000 RPM when I first start the car. I can literally put the car in gear, and without stepping on the gas, away I go. What’s going on here? I’ve never encounted this problem before. Help! (Sometimes after a few seconds it will slowly go back to a normal idle, other times it will slow down, but not back to a normal idle even after drivng several mles.)

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**Author:** ![gwhiteva](https://avatars.discourse-cdn.com/v4/letter/g/50afbb/32.png) [@gwhiteva](https://community.cartalk.com/u/gwhiteva)\
**Post date:** [July 17, 2007, 10:20pm UTC](https://community.cartalk.com/t/idle-way-too-high-upon-starting/1457/2 "2007-07-17T22:20:46Z")

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I know next to nothing about Jeeps, but the last time this happened to me was on a Toyota Avalon. I wasted gallons of expensive gasoline. It turned out to be one of the oxygen sensors. My “check engine light” was on but since I had just replaced an oxygen sensor, I thought it should have been OK. Turns out the mechanic had replaced the wrong sensor. Find a good mechanic, and support him/her!