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high rpms

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Old Oct 16, 2010 | 02:47 PM
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Default high rpms

Hey wondering if I could get some advice about my Jeep I recently bought a 04 Cherokee and the engine has had a loud humming when driving well I let a friend drive and he pointed out my Rpms were way too high (4000 rpms at 70 MPH) what could cause this?

Last edited by marz; Oct 16, 2010 at 02:49 PM.
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Old Oct 16, 2010 | 08:29 PM
  #2  
ol"blue's Avatar
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From: Tenn. and Mich.
Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
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Originally Posted by marz
Hey wondering if I could get some advice about my Jeep I recently bought a 04 Cherokee and the engine has had a loud humming when driving well I let a friend drive and he pointed out my Rpms were way too high (4000 rpms at 70 MPH) what could cause this?
It's not engaging Overdrive. Does the O/D light in the cluster come on when the button on the side of the shifter is pushed?
And Welcome to CF.
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