2006 Jeep Liberty Sport RPM problems?

Sarah D

New member
I just purchased a 2006 Jeep Liberty Non Diesel Automatic. There is 35,000 miles on it. The RPM meter floats a lot between 500 and 2000 when I have it in cruise control at 30mph and it feels like I'm towing something. So I took it out on the freeway to test it out It gets to about 95mph and freaks. It try's to shift but it wont and the RP-Ms go crazy

Any suggestions on what it maybe? I took it to see if there were any codes that showed up but there isn't. There is also no lights on the dash as it does this.
Is there any performance tips for this model anyone has as well?
 
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