Hey everyone I bought a 93 7.3 idi turbo (139k an old man owned it so it wasn't beat on) it sat for two years! I was wondering why this thing smokes so bad? It had a dam near full tank I dumped some k100d in it changed the all filters it's getting better. What should I try next to stop the smoke

 

What color is the smoke?

White Smoke - unburnt fuel that has not combusted in the exhaust. Causes - broke lifters, bent pushrods, bent valves, stuck injector etc...

Blue Smoke - usually oil being burned in the cylinder. Causes - Low compression, cracked/pin holes in piston, worn rings, cavitation, etc...

Gray/Black Smoke - Partially burnt fuel. Causes - insufficent air, overfueling, the truck is chipped.

 

well i doubt it is chipped, unless there is a bag of em under the seat.

do need to know what color the smoke is.

 

 

well it is chipped a dorito programer .... any ways it starts and blows some white at idle, and after it warms up a bit it is black/white

 

Could be injector seals...

 

Correction... after it warms it stops billowing smoke but when i rev it up it blows black and white smoke... it did sit for two years could it be the fuel? im sure it could use a good beatin to blow the cobwebs out

 

Your still running the same fuel that was in it when you parked it? If so that could be some of the issue, but for the most part it will smoke some on start up and when your romping it's very common for some blackish smoke as well. I'd make sure the check all the fluid levels. Top them all off and keep an eye on them to make sure it isn't eatin oil or water. Run a few tank fills threw and keep an eye on it.

 

what he said, minus the injector seals part. we aint got them. probly the old fuel, but could be injectors also.

 

I'd fill your fuel filter with ATF and then drive it like you stole it.