just bought a 93 b250 mark 3 conversion. It has a 3.9 v6 and 150,000 miles. Stalled a couple of times when I stoped, but started back up with now problems. Stalled again had to get towed. thought it could be fuel pump, gague wasn't working, so changed fuel pump and ran fine for 5miles, towed again. Then changed fuel filter and plugs, but now she don't start at all. Don't realy know squat about dodge vans. Where shoould I start to look. I'm getting fuel to fuel rails, but I don't seem to be getting spark.

 

Im in the same boat Ive been systematiclly changing parts on mine trying to figure it out.
At first i thought it was just out of gas and running on fumes cause the gas gauge says half but thats NOT the case. I did ADS relay,I changed the black part under the cap and rotor with the wires ,my batt is good, I have fuel, when it died I sprayed starters fluid in the tb while trying to start it ...nothing..so now im to the Coil and if thats dosen't work im going to try the sensor on the tranny.

 

i just changed coil, and so far it's running strong.

 

Worked for me too Maz4lif .... thats the ticket. I went to Napa & got me a coil $ 30.00 all is good

 

Ha haaaa now the Creepy Green van can roll

 

Im back out of the game again back to NOT starting , It did start once in Neutral but never again

New Hall effect pick up
New cap and rotor
New wires
New air filter
New fuel pump relay
New coil

sprayed starters fluid and no start/I will check once again for spark /could it be the crankshaft sensor ? Ive got a new one,I just haven't put it in yet .

 

wow went back outside to check and it started rite up...what in the Hell...this thing is Haunted lol anybody within 50 miles of Tampa that can help ?????
Also i noticed the steering wheel won't lock sometimes ????

 

The engine won't start or the starter won't turn?

 

Engine ...the starter is good motor turns over but it wasn't catching

 

Oh, I asked because the neutral safety switch will only keep the starter from turning, it doesn't disable the ignition. So if the starter turns there's nothing wrong with the NSS.