I read all the other smoke threads and I have the same problem. What I have not read is what any one as done to stop this red light smoke screen. I took it to the dealer and took it back from them when they told me that by changing the air and fuel filter they would fix it for a bargin price of 361.00, I changed both, and of course, still smokes at the drive through. tried another dealer and asked them to check the injectors. I was told they are fine. any one have a clue?????
Fill out your sig so we can see what year/model duramax you have. This will help us help you decide what is going on. LB7, most likely injector, LLY most likely reflash of the ecm. LBZ most likely glow plug controller. LMM haven't heard of any smoking yet(except the ones I've tuned)
__________________ 2007 LBZ Daily driver, single stock cp3, stock engine 11.70 @ 115mph on #2, 677 HP
23.5 MPG Diesel Power Challenge 2008
2002 LB7 Fun truck 9.801 @ 139+MPH on #2 fuel only
White smoke indicates bad injectors. Gm warranties teh LB& engine to 200k. I had hte same problem, finally took it to the dealer after getting varying recommendations. They replaced all injectors at no cost. There may be a $100 "deductalbe" but I wasn't charged. The warranty covers the LB7, apparently, 2001-mid 2004.
I'm getting the same problem with my truck, but it smokes when i "get on it" to pass someone on the highway, not at stop lights. should i be thinking that this is an injector problem as well. When i had the truck in the dealership 2 months ago for the instrument cluster they said everything was a-okay with the injectors when i asked them to look at them.
__________________ Bryan 03 GMC 2500HD LB7 4x4 CCSB 285/75/16 Hankook DynaPro on PYO 4" MBRP Cool Duals High Idle Switch Superchip Flashpaq Recon Line of Fire and Ice Recon Smoked LED 3rd Brake light Brite Box headlight mod High/Low and Fog Light
Toys-99 Civic Si-Turbo 490hp 11.820 @116 mph 1.797 60', 1995 Buell S2, 1988.5 Suzuki Samurai(wheeling rig someday) www.myspace.com/firejunky99
I read all the other smoke threads and I have the same problem. What I have not read is what any one as done to stop this red light smoke screen. I took it to the dealer and took it back from them when they told me that by changing the air and fuel filter they would fix it for a bargin price of 361.00, I changed both, and of course, still smokes at the drive through. tried another dealer and asked them to check the injectors. I was told they are fine. any one have a clue?????
Did either dealer do a computer print out for you which shows the injector performance? If not, get to another dealer. My computer printout showed all injectors were running rich and the dealer replaced them at no charge. Also, the injector warranty was extended to 200,000 miles by GM. If you got the letter about the extended warranty, take it with you. Though I am still worried about the future of my new injectors, I have not had any more smoking problems (Yet). Good Luck!
__________________ 2003 GMC 2500HD 4 door shorty Diesel:cool
Anybody had this problem with a LBZ? My 2006 Dmax recently started to blow white smoke recently...it's mostly in the mornings - about 1 minute after startup and it goes away after a little while.
__________________ MW
2007 Ram 3500 DRW "Lone Star" Cummins 350/650 QC Longbed 4x4, exhaust brake
2006 Silverado 2500 Duramax 360/650 CC Longbed 4x4, 265/75R16 Pro Comp All Terrain's
If it there is white blue smoke that is usually related to an injection timing issue. Now the Edge doesnt do anything until your coolant is at 85% of normal operating temps. So smoke when it is cold usually isnt going to be module related. Is it smoking only after it sits for a while? If it smokes after it has sat for a while that could be from a leaky injector.
Great advice Pat
__________________ 2001 Chevy 2500HD Quad cab
LB7 6.6 Duramax Turbo
Diablosport Predator with 65HP Tune
MBRP 4" exhaust with a 5" tip
G80 and GT4
Mike
TRC Supervisor
ARI Fleet Management
Do you really need to print this? Think Environmentally Friendly...
I had same problem. Blue smoke at idle. I added Redline Injector Cleaner about 5000km
ago. Havent had problem since. I also use a product called X-M5 with the fuel for lubricity. Helps a bit with milage too.
I believe the injectors are wearing out because they dont have enuf EP lubrication from the lack of sulfur in the fuel
Those injectors are doing several times a second what would have been regarded as flat earth ten years ago.... 26000psi is an incredible amount of energy to contain without lubrication that they were engineered to have in the medium (diesel). The greenies have come along and taken away a key component, so I believe that something must take sulfurs place, or we end up where we are right now.....
Remember late timing = white-blue smoke
and Low pressure can also mimick late timing
On really cold mornings (-0*F) I have noticed my LLY wiffing a very light but noticeable haze on high idle, but added a bit of lucas fuel treat and it went away.
I would have to try some things before coughing up the coin for new injectors.
Just my .02
__________________ DEATH BEFORE DISHONOR...GOD BLESS THE USA
06 Sierra SLT 2500 4x4 CC/SB/LBZ/Ally
265/75/16 Coopers on Eagles
Banks 6-Gun/Speedloader/PDA/Monster Duals/Ram Air
Installing: 325/80/16 Pro Comp Xterrains on PC 589's / 7.5" superlift in the box/ BW cut outs HARDCORE PERFORMANCE = AMSOIL DEALER
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Hmmm 
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