I fixed a bad wiring harness that connected to the transmission intake sensor which fixed the problem of my 2003 caravan not shifting beyond 2nd gear. Well immediately after that problem was solved the van started wanting to surge while at stop lights, it is also bogging down when i push the excelarator pedal from a stop to go then takes off fine after 1 or 2 little bogs? Any thoughts on what problem is would be greatly appreciated!