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Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

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OK I Have an 02 LB7 Duramax it white smoke at idle.. My severe engine light came on for glow plugs could that make it white smoke??... JOIN NOW TO REMOVE TRACER

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  #1  
Old 12-29-2010, 11:48 PM
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Default 2002 Duramax White smoke Help!!

OK I Have an 02 LB7 Duramax it white smoke at idle.. My severe engine light came on for glow plugs could that make it white smoke??
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Old 12-30-2010, 09:01 AM
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It's probably your injectors.

02LB7DURAMAX's Sig:02 lb7 cc/sb recon led lights, custom running lights, 8000k hids, 4" tb exhaust w/5" tip, EFI LIVE w/DSP5, 20% tint on front 0% on rear, 8" brow on windshield, ranch hand rear bumper, dual pillar gauges, kenwood touch screen head unit, 10" sub, BDS 4 1/2" lift, 17" atx mojave wheels, 35.12.50 Toyo m/t's. Soon to come, built trans, 06 tow mirrors.
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  #3  
Old 12-30-2010, 09:42 AM
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My buddy had an 02 that would idle a little white smoke then blow out a nice puff when he took off... Injectors

Smoke 'em's Sig:2002 Dodge 24v ext cab lwb, 4x4, S&B intake, Quad ADR 4k, 3250 SB clutch, 100 hp SDX injectors, 4" turbo back exhaust w/ 6" tip, muffler MIA 5 spd manual tranny, egt and boost gauges, 2.5 leveling kit w/ 35's, replacement bumpers front and rear, blacked out windows, fass fuel pump
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Old 12-30-2010, 01:54 PM
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agreed, get your injector balance rates checked out

BriteWhiteRam's Sig:2006 Chevrolet Silverado LT 4x4 Crew, LBZ/ALLISON, PPE airbox mod, EGR blocker, EFI Live Tuned by me & Duramaxtuner
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Old 01-02-2011, 07:51 PM
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when i drive no white smoke its black??
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Old 01-02-2011, 08:43 PM
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You have a programmer or any other mods that would make it smoke black? My friends was bone stock so no black smoke, just white
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Old 01-05-2011, 01:54 PM
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nothing its all stock i've had two duramaxs and they smoke black i'm going to have it checked out
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Old 01-06-2011, 07:17 PM
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mine did what your is doing when my 3rd set of injectors went out. White smoke at idle and grey/black when running down the road. Installed 8 new ones and that fixed that.

I'm on my 4th set of injectors (including the factory set) and just about every time they went out, it did something a little different.

1st time it filled my oil pan with diesel and the oil pressure gauge was reading 0.

2nd time very little smoke but my mpg's dropped about 4-5 mpg.

3rd time I looked like a train smoking at stop lights and going down the road.
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Old 01-07-2011, 11:32 PM
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i agree... i currently have the same prob with my 03... its my #2 injector causing the problem... white smoke at a idle, but driving down the road nothing unless i get on it then black smoke... but if you are looking for 8 new injectors go to duramaxonly.com mike there has great prices on stock injectors... while you are at it, i would change out your glow plugs too... just to save trouble... im doing the same thing... hope this helps

brettdfny19's Sig:2003 LB7 banks intake and 4'' cat back exhaust, ranch hand front bumper, ppe economy tuner, tough country leveling kit, banks 6 gun w/ speed loader, 50hp injectors...
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