06 JGC-L Hard Down Shift and Crazy Idling
I have a 2006 4.7L V8 that has started to shift very hard when slowing down. The RPM's have also started to jump around when in park, actually causing it to shut off. The check engine light came on a couple of weeks ago and I figured it was the transmission. Had the code read and was told it was actually an Engine code...something about a vacuum leak. A week later, took my jeep in to a mechanic and they cleaned the throttle body...said there was a lot of buildup do to the mileage (103,000). Drove great for a week or so but it just started idling funny again and has down shifted very hard twice. Any suggestions would be greatly appreciated. Thanks.