Van Wont Start Then Start's

Check the air filter?

clean the battery cables or tighten them.

Engines need three things to run. Air, Fuel, and Spark. If you can verify the air cleaner is clear, and fuel is available at the carb, then the ignition timing must be the issue. Check to see if the distributor, and cap that you installed, are still tight. Check for spark by removing one spark plug boot, insert one of your old spark plugs, and have someone crank the engine for you to see if you have spark. Air, Fuel, and Spark, its one of this three.

just a guess but check if you have the right spark plugs for you van. spark plugs have a heat range. the right plugs for your van are AC R 43TS If you have a V6 engine. Also check your plug wires or just replace them. I would also check distributor cap and rotor. these parts are inexpensive, I would just replace them and see if that fixes the problem. if you did this already I don't know what to tell you know I will research my owners manual if I find something else I will pass info to you.

ADVANCE AUTO HAS A MACHINE TO TEST MODULES.. BUT IF I WENT THROUGH THE HASSTLE TO REMOVE IT I WOULD REPLACE IT..YOU ARE DOING WHAT IS CALLED SHOTGUN REPAIR..REPLACING PARTS ON A GUESS..NEED TO FIND OUT WHAT YOU ARE MISSING SPARK,,, FUEL,, COMPRESION...GET BACK WITH ME

i know alot of crysler/dodges had a crank sensor i had 1 go out on mine check see if you got 1 chances are thats it when mine went out it would turn over but no spark

vacuum leak at throttlebody,check dist.cap wires, bad spark plugs also check vacuum hoses

Have the drive gear on the distributor checked, these are known to wear and cause a timing issue.

yes, new pump inside tank

Engine Cranks But Will Not Start

For an engine to run, you need three things to happen inside the engine. Compression, fuel and ignition, without any one of these components the engine will not run.
Basic Checks:

A. Test Fuses. Test both under hood power distribution center and the fuse panel under dash. This is done with a test light tool. The test light should illuminate on both sides of the fuse, if not the fuse has failed and needs to be replaced.
B. Testing Fuel Pressure Test for proper fuel pressure with a test gauge on the fuel rail, most throttle body injection cars (TBI) are between 13 psi and 17 psi. and most (DPI) direct port inject systems are between 40 psi and 55 psi. If no or little fuel pressure is observed and there is 12 volt power present the fuel pump, the fuel pump needs replacing.
C. Checking Timing Belt Test for compression by removing a spark plug and insert a compression gauge. Crank the engine over about 5 seconds the gauge should read between 125 psi and 165 psi, if no compression is observed remove front engine cover to inspect timing belt or chain. Crank engine to observe cam rotation, if the cam does not rotate the timing belt or chain has failed. (note: if the timing belt drives the water pump it is best to replace the water pump at this time)
D. Test for Injector Pulse Remove injector connector to insert injector test light (node) or volt meter. Observe light flash or gauge pulse while cranking. If light/voltmeter doesn't respond, an ignition distributor/crank angle sensor (CKS) or an ignition module is most likely your problem.
E. Test for Ignition Spark Remove spark plug wire, insert an extra spark plug into end of wire, rest spark plug next to a ground source then crank engine. You should observe a blue spark between the spark plug gap and ground source. If no spark is observed, an ignition coil, ignition rotor or spark plug wires might have failed. (always keep hands away from engine when cranking)