Truck starts but then will run rough and shudder then stall.

[MCL169]

I have been having an issue latelly once in a great while where I will start my truck and sometimes it will idle and warm up then do this or right when I start it it will shudder and stall out like its not running on all cylinders. And it usually only does it when it is raining out.

[chris'2000psd]

check to make sure your windshields not leaking down in the drivers front corner and dripping onto your fuse panel, relays and pcm.

[goldgoose]

wait for a dry day start truck and slowly garder hose the truck from bottom to top front to back and make note when you get to an area where truck acts up.