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cummins smoke and hard start

3K views 4 replies 3 participants last post by  ambulancechser 
#1 ·
Have 4b in case smokes bad while running hard to start. Injector? Worse? Have too many 4b,s and they

are fighting me lately..
 
#2 ·
Check the air intake system first starting at the air filter going back to the engine. Remove the mouse nest if it's in there. Turbo engine? Check the turbo for proper functioning. Turbo piping, check for a cracked connection hose or a pipe with a hole.
 
#3 ·
color of smoke...?

white,black or grey...and the conditions under which they appear,will help a lot for trouble shooting.
 
#5 ·
engine hours? (or miles will help)

any blowby out the vent tube?
 
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