Just took ownership of the 2006 4.7 and I'm noticing an idling issue. They inspected the car and it had a code for crank position sensor issue. But supposedly they checked the sensor and it was OK and they claimed it could be that the engine was wet from the clean-up. Anyway, I've had a similar issue in my WJ 4.7 and I changed the thottle position sensor and that didn't clear it up on that one, though it did get a little better.

I'm going to change the oil and filters along with the PCV and clean the thottle body the change the plug, we'll see what happens.

What do you think otherwise?