Originally Posted by pmacky00
Does anyone know if there is a module that can be purchased so I don't have to hit the overdrive switch? Just to make it automatic?
Try driving in 3rd and see if you get the same clunk. Could it be the torque converter locking up?
Here's how your transmission works
as its fluid temperature changes. This may give you some insight into what you are hearing. Also worthwhile looking at your Owner Manual to see what it says about shifting.
You can go to the jeep.ca or jeep.com sites and download an Owner Manual in .pdf format. Makes for easier searching.