First what motor is in the van? Than tell me what it does before it stalls or you put it in gear. There many different possiables that it could be.
what causes a boat motor 40 hp to stall when it is put in gear
Check your fuel pressure first then go from there.
it sounds like the neutral switch
Try putting up the kickstand
THE TIME A RAN IN TO THIS WAS THE INTER WALL OF EXHAUST COLLISED
Kick stand switch??
NO
You start by diagnosing it to determine the cause of the issue, then repair it accordingly.
Because its a Chevy corsica not a ford corsica!!!!!
60ml
check your fuel filter and also your spark plugs.