Low humidity area,

I have not washed the truck ...ever
I did hose out the bed the other day after a few trips to the dump.

The corision was only on the coil and top coil wire, plugs and boots were fine.

On my trip to California in December I had a small incident where the truck wouldn't fire up after I stopped for gas on the way back home.

The other day I went to pick up some furniture at a ware house. The truck didn't fire after I loaded it. Both occasions I pulled the cap and adjusted the rotor by pulling the tab up and she fired right up.

That's why I decided to put new plugs and wires.

It seem like that corrosion may have been the problem all along.

I have driven in the rain a few times.

Yes . It is something to add to the check list.

Thanks