Chrysler Repair: 2000 Dodge Gran Caravan 3.3L, lean mixture, exhaust gases

Question
Car has 109k miles, was running perfect. Fueled it up at gas station, drove to next destination 8 mile down. Parked it, came back tried to start it up...car turns over but won't start. I can hear gas pump running, I check sparks on spark plugs. What do you think it might be

Answer
Hi George,
My immediate suspicion is that your egr valve is sticking slightly ajar which will cause the engine to falter/stop at idle speed after slowing down. The valve is located near the throttle body air intake at the end of the engine, mounted in pipe that recirculates exhaust gas from the rear cylider bank exhaust pipe back around to the intake manifold. The exhaust gases have some fumes that can plate out a crud on the valve stem and thus keep it from closing tight when you are at idle. That makes for a too lean mixture so the engine stalls. The valve proper is mounted horizontally with the stem visible in a space between the body of the valve mounted on the pipe and the round top of the valve which is flanged and so if you look carefully you will see a metal rod (stem of the valve) with a slot around its circumference. You can take the tip of flat blade screwdriver and insert it in the slot and then lever the valve back and forth to check if it is moving freely (against spring action in one direction) or not. If it doesn't seem to close easily with the help of the built-in spring, then I would spray the base of the stem with solvent from a pressure can (such as WD-40 or carb cleaner) while moving the stem back and forth.  Then see if that solves the issue.
If not, then I would try to see if the engine controller has stored any fault codes in its memory: on-off-on-off-on and leave on with the ignition key (quickly, less than 5 seconds elapses) and then observe the odometer window to see if any 4-digit codes preceeded by a P appear. Let me know what they are.
Roland