What Causes White Smoke

[thechevyhdman]

Everytime it rains my truck screws up bad. It will knock and scream (sounds like Pilot Inj. shutiing off) Sounds like its going to throw a rod....Its one of two things....My juice box... or my truck is sucking in water. Its bellows, I mean bellows, white smoke bad. If the motor sucks in water it will screw up an injector and cause a rod knock right? But what causes the tons of white smoke. Juice Box and all plugs do not look wet at all...Air filter I cant really see if thats wet. Any thoughts or input? Thanks Bill

[technician]

ChevHD,

My 86 poured white smoke when I installed a new injector pump. I checked timing and it was retarded.... a lot.
I would have to say you have a breach in one of your connector seals check them out or worse your box may not be weather tight. Check for cracks in the seals. I'm not juiced (yet) but if memory serves your box is sealed in expoxy. Maybe the expoxy is cracked? Better find it. If its a connector soon the wonderful green goo will take over.
Good Luck!