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cummins 5.9 turbo runs rough when cold

2137 Views 4 Replies 4 Participants Last post by  Steveo24
I recently bought my first diesel. It runs really rough when cold. Takes about 5 minutes before I can leave the driveway or it misfires badly. Is this normal? There are no check engine lights on.
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can we get a little more info on your truck? (year/trans mainly)

Sounds like maybe its got one or 2 holes with low compression that arent lighting right away. but thats just one of a million things that could be wrong.
 

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Discussion Starter · #3 ·
The truck is a 2006 5.9 liter with 56000 miles on it. Runs great when warm; just rough and hesitates/misfires when cold. It does not misfire when I start the engine and remain in "park." Just does not want to go up the street when cold.
 

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maybe the tranny fluid is too heavy to move when it's not all the way warmed up, so, try to slip it into neutral for a few minutes before ya drive off maybe...:thumbsup:
 

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You may have some codes that will pull with a scanner but will not set a CEL, I would have the codes pulled anyway
 
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