I don't think my 95 Grand Cherokee is shifting into overdrive all the time. Can you tell me what the RPMs should be for it running 65 MPH?

70 mph at 3000 rpm - Ford Explorer and Ranger Forums "Serious ...

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May 13, 2003 - 19 posts - ‎14 authors
Elite Explorer members can change the forum "styles" to eliminate most ads, including the blue underlined links, and no ads on photos. Are my "rpms" too high?
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Why is my car running at 3000 rpm? ' Yahoo Answers

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Jan 28, 2010 - Most days when I am just cruising along at 65-70 mph my engine is at about ... However, some days it will be at 3000 rpm while only going 60-65 mph, ...into overdrive. it wont hurt your engine running that high, but you will get ... Why does my car run at 3000 RPMs going 70mph?
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run the fault codes to check for OD operation and TCM problems . IT could be a VSS sensor as well but this should show up in the codes.

I agree. It sounds like you are not going into overdrive or lockup.

sounds like a bad ground connection.. find and secure all you can and reboot...good luck

Keep an eye on you tachometer. When you are pretty sure it has shifted to the top "direct" gear, note the RPMs .Try to maintain the same MPH and then note when you think has shifed again. If the RPMs drop again, you then know it has gone into OD. Hope this helps you understand.
Thanks, Robert

I think I understand the question. These transmissions are known for the 4th speed shaft shearing off the splines. 4th being overdrive. This won't let it shift into overdrive and also no engine breaking when you are coasting. In other words, when you are coasting your engine rpms will drop down to idle speed. So when in 3rd or drive manual, you do have engine breaking and the rpms fall slowly. The transmission is gonna have to come out to be repaired. I hope this helps.

What engine size? 3.0?

A common problem with most overdrive units.Overdrive should only be used above 40 mph. With the mileage odds are that you need to have transmission looked at professionally.It maybe time to consider rebuilding it.I do not see a trans service of being a benefit.

You can retrieve the codes through the OBD dianostic connector with a scanner.

how high does it rev before it goes into 5th gear? if it's not too high, could just be a long gear, and completely normal, or otherwise you may have a bur on your shift valve causing it to not want to shift normally. for that case you have to pull the trans and grind the bur off, or if it's under warranty fight with the dealership until they agree to.