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Heavy smoke at startup....

Discussion in '1982-Present GM Diesel' started by Can Can, Jan 24, 2002.

  1. Can Can

    Can Can Pusher Man Staff Member Super Moderator

    Feb 17, 2000
    Likes Received:
    Cochrane, Alberta, Canada
    I know that diesels generally smoke more when cold, but lately my 6.2 smokes WAY too much out of the passenger side exhaust when I start it up. The smoke stays pretty thick for a couple of minutes, then slowly disappears. I don't have a connector pipe joining the two exhaust pipes, so I can be pretty sure that the problem lies on the passenger side of the motor.

    I know that a plugged injector can cause smoke, but I was under the impression that a clogged injector will ALWAYS cause an overly-smoky exhaust. Do these symptoms sound like they are injector related? If so, is it best to change ALL the injectors out at the same time?

    <font color=red>DIGGING AND DIGGING AND DIGGING</font color=red>
  2. Danno

    Danno 1/2 ton status

    Aug 4, 2001
    Likes Received:
    Rockford, IL
    My driver's side exhaust did this when it got cold, until I changed out my glowplugs. I just had one or two cylinders that weren't quite firing until the truck ran for about 20-30 seconds.

    What color is the smoke?

    1984 K5 Blazer 4x4 Silverado
    6.2L diesel, 700R4, 3.42 gears, 31x10.5" tires
  3. René

    René 1/2 ton status

    Mar 14, 2002
    Likes Received:
    Michelbach, Germany
    Can it be that some injection nozzles drip?
    Perhaps it becomes better, if you adjust the pressure
    (1900psi), or you overhaul the nozzles.

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