351W cutting out randomly

[dkm004 11]

Hey guys.

 

My 351W had picked up a bug the past few days. I will be driving along in traffic or idling and BAM, just like that it just shuts off. As soon as I hit the ignition it fires right back up again no problem and runs fine. Its only happened 3 times but I cant seem to source the cause. Any clues?

 

Cheers!

[Dave R. 85]

My friend had a '75 or '76 Cougar that did the same thing. Are you running an electronic ignition? His brainbox for the stock ignition was the culprit. Certainly sounds electrical.

Edited August 9, 2014 by Dave R.
added the last line.

[dkm004 11]

Im running a MSD. Did he need to replace it?

[LindenBruce 27]

Also, check your grounds inside of your distributor under the cap to make sure nothing has come loose. B.

[1969Fstback 58]

Also, check your grounds inside of your distributor under the cap to make sure nothing has come loose. B.

 

 

 

 

Had similar issue a few weeks ago. Running 50 the car shut off, then start right back up. Did it 4 time in a few miles. My coil wire was about to come off. Put it on right and no issues.

[Dave R. 85]

Im running a MSD. Did he need to replace it?

 

Yes. He did have to replace the box. It was a heat related problem inside the box.

[stangnet33 88]

I had a real funny one once with same sounding issue - the starter solenoid

[danno 128]

You have an intermittent wire connection somewhere. Myself and others have seen this in the coil. They can work fine, then just stop. It cools down and works fine again. Coils are cheap, I would replace it. If that does not solve the problem, you have a spare coil for when it does.

[dkm004 11]

You have an intermittent wire connection somewhere. Myself and others have seen this in the coil. They can work fine, then just stop. It cools down and works fine again. Coils are cheap, I would replace it. If that does not solve the problem, you have a spare coil for when it does.

 

Mine does it cold or warm, idle or running. Then will fire up again fine a second later. Im stumped! Has to be electrical, not fuel.

[1969vert 55]

I had a ready to run billet distributor in my convertible..key word HAD..it was cutting out..

removed the distributor and the lower bushing was gone... so much play the reluctor was hitting the pick-up...I dont know if MSD is having a problem with there distributors or not... replaced it with a old accel distributor that was only 25 years old..running good now..