RPM lowers very slowly to Idle

Asked by thebigkc Oct 13, 2014 at 01:32 PM about the 2007 Jeep Liberty Limited 4WD

Question type: General

My 2007 Jeep Liberty PRM lowers to idle at a very slow rate. It takes 30 seconds or so to lower from 2500 to 600. Is this normal?

4 Answers
24,965

Mark answered 9 years ago

No, this is not normal. While in "park" As soon as you let off of the accelerator, the RPM's should drop to idle within a few seconds.

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thebigkc answered 9 years ago

The dealer where I bought it told me that since it is a four wheel drive vehicle, this is normal. Should I believe them? .....or should I get an opinion from the Chrysler Corporation? Thank you.

Mark helpful
24,965

Mark answered 9 years ago

Being 4 wheel drive would have nothing to do with your RPM's hanging. If you are in park, the engine is disengaged from the transmission/drivetrain and should not hang at 2500 RPM. It could be a mechanical throttle issue or throttle sensor/servo hanging up.

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