'87 ford van w/302 just died,no spark,replaced ign.mod. &ign.coil.still no spark.

first test for spark at ignition coil immediately after it dies a no spark can be a pick up coil or module.

check if the ignition coil is very hot . IF so replace it with the correct voltage unit for the engine.

is it fuel injected? if so you might have to bleed the system of air on the fuel rail there should be a vowel that looks like a tire one

Sounds like your crank position sensor went out.

I would check the wires from the battery to the distributin cap and also I would make sure that that your battery is charged
hope this will help you

yes, ign module.

ck all fuses and fusible links and relays

1996 GMC 1500 Pickup.
Replaced Coil, Dist cap/Rotor, Ign Mod & pick-up.
All showed to be bad with OHM meter.

20A ECM-B fuse keeps blowing out and I'm afraid to burn these new parts up....

ANY IDEAS OUT THERE???

If the car started and then stopped and if you have ruled out the fuel system(make sure you do have fuel pressure and your not chasing your tail) then it could be one of 2 items.
First i would replace the cap and rotor, I have had cars that ran fine then died and after replacing the cap and rotor have been perfect.
the other common issue with this model is water in the gas. The fuel filler drain gets clogged which allows water in teh gas tank, when the car sits it seems the mixture will allow the car to run then boom, it will die and not restart.
JP.

well you might have"bad ign wires" or bad ign coil!!!!O2 sensor wouldn't do that usually miss fires is wire ,coil, broken or crack porcelain on spark plug usually done on installing them!!!!!! I know the three spark plugs closest to fire wall are not easy to get at and some time spark plugs get cracked and over looked good luck