351 no spark

[frankensteinxj]

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.

[Redriverranger]

Are you/they using duraspark ignition with the control box on the fender or did you go another route?

[frankensteinxj]

Yeah. He has the Computer (ignition control module) mounted on the firewall.

There is a 100$ reward for anyone who fixes it.

Bounty jeep. 10$ to come out and try and 100$ if you fix it.

I believe he is taking it to houks jeep parts tomorrow noon-afternoon so he can look at it.

we'll see what houk can do. If anyone wants to come and give it a shot in the mornig your more than welcome to lol.

[Tool Man]

Originally Posted by frankensteinxj

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 moUhdule 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.

I had the same issue it was the internals in the distributor it cost $18.00 at autozone hope this helps