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Thread: 05 LLY How much Smoke?

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  1. #1
    Join Date
    Mar 2001
    Location
    Tolland,CT
    Posts
    118

    Post

    Can't complain about my 05 LLY. Great performance and very good fuel economy. Quick question though - how much smoke should I see. If I jump on it hard, I can see a very significant black cloud behind the truck. Doesn't fog the whole road but leaves a definite smoke pattern out the right side. I thought there was suppost to be very little or NO smoke. Truck is bone stock and never been to dealer except to check steering.

    Is this normal? Thanks for the input.
    2005 Regular cab, LLY Allison, new 7/05

  2. #2
    markrinker Guest

    Post

    I have never seen any 'black' smoke from my '05 LLY. However, I don't think I've ever 'floored' it from a dead stop, either. It does see short requests for full throttle under load, but rarely RPMs over 3K.

    While spanking a Ford Thunderbird 0-90mph the other night, I did see a haze in front of his headlights - but not black smoke as you describe.

    [ 01-15-2006, 10:02 AM: Message edited by: Mark Rinker ]

  3. #3
    fishhead1076 Guest

    Post

    I must admit my 04.5 LLy amazes me when I'm under heavy acceleration, it smokes like all get out! She's bone stock!

  4. #4
    WNFD Guest

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    Mine does the same thing. I didnt think the Duramax put that much out? It almost seems like it loads up and then when you punch it it cleans it right out.

  5. #5
    Join Date
    Mar 2000
    Location
    Mobile, AL U.S.A.
    Posts
    28

    Post

    Only see smoke a few time as getting on the big road and staying with the traffic.Don't always do it then.May just build up from around town driving
    and then blow it out.Never thought of it as a problem.
    2005 Chevy 2500 HD Duramax CC SB 30,000 miles.
    1994 GMC 2500 Suburban 6.5 TD 210,000 miles.
    1983 Mercedes 300 D Turbo Diesel 150,000 miles.
    1991 Holiday Rambler Aluma Lite XL 30 foot.

  6. #6
    Kennedy Guest

    Post

    I'd be curious how the smoke levels change with the latest "intake pop" calibration changes as they appear to decrease EGR psoitions/flow which may contribute.

  7. #7
    Join Date
    Mar 2001
    Location
    Tolland,CT
    Posts
    118

    Post

    Thanks for the replies. Guess this is one thing I won't be worried about.
    2005 Regular cab, LLY Allison, new 7/05

  8. #8
    Join Date
    Mar 2001
    Location
    Smith Center, KS
    Posts
    114

    Post

    Kennedy,
    Do you feel there will be a loss of power after the latest reflash to correct the turbo bark/pop?

    Thank You,
    ** ccole **
    Past Rides: 1978 Chevy 5.7 Dsl; 1982 C-20 6.2L Dsl; 1984 Chevy 6.2 Dsl; 1986 Suburban 6.2L Dsl; 1989 K2500 6.2L Dsl; 1994 F250 7.3L; (2) 1997 F250 7.3L; 2004 Duramax; 2005 Duramax; 2006 Duramax; 2007 Duramax; 1995 6.5 Non-Turbo; 1994 6.5 Turbo; 2001 F350 7.3L, 2005 GMC Duramax (Current)

  9. #9
    mark45678 Guest

    Post

    As far as I can tell there is NO loss of power with the new reflash! if fact it maybe a little more power on tap! I think if your guys are seeing gray smoke your fine, but if its black check your air filter! Boost stick will help with the black smoke also. Had mine refashed 12/23/05 , get yours done you will be happy you did.

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