I have a 2006 Grand Cherokee Laredo with issues with the transmission. It was working perfect and with no issues and after one day, I started the car and shifter is moving ok and selecting the right gear on the dashboard, but the car does not move. I thought it could be the cold weather but nothing changed after leaving the engine on for almost an hour... I checked the oil and its level is ok and visually looks ok. What it could be? Car is not showing any sign of anything else malfunctioning, or any noise prior to this.
Just to leave it clear.. Engine revs up, the shifter moves ok and the dashboard shows the correct selection, but the transmission feels like it is just in parked, no change in the acceleration or noise that lets you know that the gear has engaged... nothing!