major white smoke - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 10-02-2008, 06:49 PM   eBay Motors  #1 (permalink)
 
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major white smoke

I have an 03' with a banks tuner, and a 5" exhaust, everything else is stock. I have had a little white smoke for sometime and was told it could be an injecture. But recently it has started smoking really bad with a tick in the motor and was told that it was a fuel knock meaning the injectures are bad. but i have smoke coming out a hose in the front of the motor near the bottom i have chased it to both valve covers. It is putting out smoke constanly. I dont have any fuel in the oil though. Does any one have any idea what might be going on. Thanks
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Old 10-02-2008, 10:25 PM   eBay Motors  #2 (permalink)
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Welcome to the forum!

Usually white smoke means either head gaskets or injectors. It could be pushing to much fuel into the cylinders. Did you change the fuel filter lately? Gonna be hard to diagnose. You might have take it in to the shop!
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Old 10-06-2008, 09:21 PM   eBay Motors  #3 (permalink)
 
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yea i changed the filter what puzzles me is why the smoke is coming out the vent tube
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Old 10-06-2008, 10:13 PM   eBay Motors  #4 (permalink)
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They do weird things when the injectors go out. ach truck is different. If you dont smell coolant take it to the dealer for injector replacement.

Does it start hard??
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Old 10-07-2008, 03:58 PM   eBay Motors  #5 (permalink)
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Possible blown piston, rings???
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Old 10-08-2008, 06:31 AM   eBay Motors  #6 (permalink)
 
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it actually starts easy i have it scheduled for the injecture swap. i hope that solves it. if it does need rebuilt does antone know of some aftermarket companys selling rebuild kits. if i got to rebiuld it i might as well beef it up. Thanks
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Old 10-08-2008, 03:53 PM   eBay Motors  #7 (permalink)
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Take off all programmers before going to dealer!!!!!!!!
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Old 10-08-2008, 07:31 PM   eBay Motors  #8 (permalink)
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^^^ unless you have a cool dealer like mine.

So you wanna beef up your LB7.

Well heres a few numbers to toss around. These are from my buildup.

Mahle Pistons w/remachined bowls, thermal coating and lubricty coating:$2,300
Carrillo Rods $3,125. There are cheaper rods though too. The cheapest being about $2,400
Billet Main Caps $600
Billet Injector Clamps $400
Injector Studs $180
Head studs $660
ATI Super Damper $440
Banks Flex Plate $??

and then all of the seals, the new water pump, the new oil pumps, and all of the machine work.

It aint cheap to beef up a duramax.
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Old 10-10-2008, 05:01 PM   eBay Motors  #9 (permalink)
 
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Well we just recently done a compression test and #7 cylinder failed. So time for a rebuild. I have a banks tuner now am gonna sell it and beef my motor but am looking for the right tuner any suggestions? PPE hot 2 is what i am looking at. Also looking for suggestions on tranny mods any info would be appreciated? Thanks
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Old 10-10-2008, 07:19 PM   eBay Motors  #10 (permalink)
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If you have a ticking noise then it is likely an injector, how many miles are on your truck?
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