My idle drops to 500 RPM when I come to a complete stop causing it to vibrate & shake.
The dealer has been giving me the run around. No one seems to want to help. I've had it 4 months & have taken it back 6 times within a 2 month period. Totaling 7 full days.
I have had the same problem almost from day one on my 2001 Durango. My vehicle also stalls out about 50% of the time when this happens. Pretty dangerous when you are about to merge into traffic and the car goes dead! Other times it attempts to correct itself and will rev up to almost 2000 RPM while sitting still. If I don't have my foot on the brake hard enough it will lurch forward about a foot or so. So far I have not rear ended anyone or lurched into traffic. The service department cannot duplicate the problem. However, I am now on my 3rd gas tank. The gas tanks keep getting a bow in them and releasing bad emissions. They have told me that they are stumped and that they have been told to run some new tests to see what is causing this "suction" on the tanks. My car is in the shop as I type this for this very problem. Maybe, and it's a big maybe, the RPM problem will be fixed along with the gas tank problem! One can only hope.
It seems many dodge cars have this problem.
Replace your throttle positioning sensor approx. $20
If that doesn't work it's probably the computer.
My Dodge Durango (2001 4.7 with 95000 km) had started to shake and vibrate at the stoplight. I added 1 STP fuel injector cleaner on 3/4 tank of fuel and this problem went away. the rpm would not go to 500, as it did before, it idles at about 600-650 now.
Dave.