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engine smokes

  1. White smoke

    911 Problems Forum
    Hey all!! So here's my gig. 2002 Chevy 2500 HD duramax diesel 6.6 lb7 crew cab, short bed all stock showing white smoke at idle and black smoke when pressing the accelerator. Read the code and came up as intake air heater relay, changed it out and it is still smoking?? while doing that also...
  2. Really need some help here guys..

    911 Problems Forum
    I have a 2004.5 lly GMC 3500 4x4 truck that I have been struggling with for 3 weeks to figure out what is wrong. It will only start when I put a few drops of gas in the port. And after it starts it idles good, but with acceleration has heavy black & white smoke, and has a miss/skip. Flushed...
  3. Blue smoke at idle after taking to dealership

    01-04.5 LB7 Duramax Powertrain
    Hey guys, Im new to this site and need some advise and opinions. My 02 LB7 silverado was broke into the week before new years. They broke out the passager window and screwed up the ignition and only managed to steal the aftermarket radio. The security light needed to be re-set by dealer here in...
  4. whitish color smoke

    01-04.5 LB7 Duramax Powertrain
    i have a 01 duramax that is blowing whitish colored smoke from the tailpipe it has been doing it for probably 20-30,000 miles. It has a real strong smell of exhaust fumes also. I think the injectors were replaced at 120000 miles along with the head gaskets. If you guys have any ideas what...
  5. 07 lbz smoking at idle

    911 Problems Forum
    My 2007 lbz slightly smokes greyish at idle. Mods are in my sig. Any advice. It runs good no problems
  6. white smoke @ high altitude

    911 Problems Forum
    Took a trip to Yosemite. Towed My 32FT 5th wheel with my '04 Chevy HD 2500 w/ Duramax. No problems, good mileage, power etc. Unhooked at camp and went into Yosemite Valley. While circleing the valley in heavy traffic I started smoking profusely. White stinky smoke billowed the whole time...
  7. 2003 duramax smoking on cruise

    911 Problems Forum
    My truck has ran great until a few days ago. Now it smokes terrible just cruising down the road. Smoking black smoke. Has 218000 miles on it. Thanks for replies
  8. black n white smoke

    911 Problems Forum
    Whats up I have a 2004 dmax and after about 1hr to 1hr and 20min the black smoke upon throttle turns white for awhile, no check engine and the truck has plenty of power...any thoughts?:confused:
  9. Traveling problems help please

    911 Problems Forum
    Well I just made it to south Texas with the travel trailer but I am in a jam. Fir most of the trip the truck would smoke off and on, black smoke. I didn't think much of it, then on the last leg of the trip it became more constant and I noticed a loss in power. Then it would do a slight surge/cut...
  10. 2005 Blown Up... Warranty Cover?

    911 Problems Forum
    I got friend of a friend who I think blew up his 05 chevy duramax 3500 flatbed. It has 92,000 miles on it. Driving it, lost power, oil pressure dropped, and lots of black smoke. I don't know much more about the truck, like if it has a tuner or any other mods done to it. If it is pure stock...
  11. white smoke/leaking coolant

    911 Problems Forum
    I have a 2003 LB7 and it has started smoking white smoke on start up when warm, but once driving it disappears. Also it is using a ton of coolant! I have read a lot of threads and done some research. I brought it to my mechanic and he checked it out and put a pressure test on it over night. Set...
  12. Injector Leak???

    911 Problems Forum
    Another injector thread... Here's the deal. - White smoke at idle...lots. - Put a dye in the fuel and it did not show up in oil. - Oil level normal and does not smell like diesel. - No noticable loss of power. - Put an additive in to kill any bacterial growth in fuel. - Coolant level has...
  13. duramax smoking

    Alternative Fuels Diesel Additives Lubricants
    my 2004 duramax, with 115,000 miles on it, has begun to smoke while idling. about 40,000 miles ago i upgraded to a bully dog programmer and put it on the fuel efficient setting. mileage improved a couple of miles to the gallon and all has been well. is this something to do with the program or...