I have a commander 2006, 3.7L. It is slow to accelerate and at 60MPH it will not shift into a higher gear and runs at 3000RPM. Transmission guys serviced it and said the trans is good. After the transmission service she ran better but within a day or two the same thing started happening again. Here is the crazy part, if I pull over and shut down the jeep for 5 seconds and start it up, she works perfectly.
So I pull over everyday on my way to and from work and shut it down after a couple of miles. Any advice?