351 no spark

frankensteinxj · 09-05-2012, 09:06 PM

Cross posting this from pirate.

We have a 351w out of an 88 f250 in our buggy.
Carbed.
Was wheeling it the other day and it just stalled out. No previous signs of stalling and was running fine up to the point when it quit running.

No spark from the coil.
We have replaced the icm box as these signs pointed to it.
Have seasrched and it seems to be a common problem but not a lot of definate answers besides the icm.
We have also replaced the coil.
We put a test light on 3 wires from distributor and 2 out of 3 have power.
rotor button is spinning when cranked as well.

At a loss here fellas, any help is appreciated. thanks

We have replaced the distributor, coil, and ignition control module without any better results.

test light on every ground in the system all working.
Both posts on the coil are hot when the ignition is on and when cranking.
It is NOT pulsing at the distributor wire while cranking.

09-05-2012, 09:06 PM	#1
frankensteinxj Join Date: Jun 2009 Location: Goshen Posts: 336	351 no spark Cross posting this from pirate. We have a 351w out of an 88 f250 in our buggy. Carbed. Was wheeling it the other day and it just stalled out. No previous signs of stalling and was running fine up to the point when it quit running. No spark from the coil. We have replaced the icm box as these signs pointed to it. Have seasrched and it seems to be a common problem but not a lot of definate answers besides the icm. We have also replaced the coil. We put a test light on 3 wires from distributor and 2 out of 3 have power. rotor button is spinning when cranked as well. At a loss here fellas, any help is appreciated. thanks We have replaced the distributor, coil, and ignition control module without any better results. test light on every ground in the system all working. Both posts on the coil are hot when the ignition is on and when cranking. It is NOT pulsing at the distributor wire while cranking. __________________ BYAAH!!!