When it rains my 300 6 cyl dies. Now, I replaced the cap and rotor twice. Just recently I again changed the plugs, wires, cap and rotor. Low and behold it rained the other day as I was driving home and the truck died. Any suggestions??

 

Ive seen a 300 6 cyl with a rubber jacket around the distributor to I suppose stop this from happening, Im not sure if it does the job?

 

the rubber boot came stock on alot of ford engines.....i had this prob all the time on my 85 with the tfi. I replaced about everything on that darn ignition system under the hood and each time it ran a little better. mine ended up being a prob where someone probed the harness to the tfi and just a small whole cause the wores to corode and loose connection when raining or wet snow. i replaced the tfi plug in and the 6 inches of harness with a new one then replaced the whole thing with ds2