smoking problems

[brakeless]

ok about like 2 or 3 months ago i got my truck fixed it was sitting for about 4 years and it was fixed and wasnt smoking when i took it home from the shop but now its smoking and the smoke is white (if that helps any) what can i do to make it stop?? any help would be great

[79D50]

replace the head gasket and look for water in the oil.

[leonwold]

if the exhaust smells sweet its head gasket

[mxmikie]

replace the valve stem seals mitsubishi valve stem seals are junk

[smitty]

If your truck was sitting for about four years, and you just now got it out and started driving it, chances are you have a broken piston ring. If it didnt smoke at first, and all of a sudden started smoking, yes, it is very possible.