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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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I would like to check the balance on my '03 lb7. can anyone explain the process or link to one. Thanks for the help.... JOIN NOW TO REMOVE TRACER

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  #1  
Old 09-07-2011, 11:33 AM
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Default Checking Injector Balance

I would like to check the balance on my '03 lb7. can anyone explain the process or link to one. Thanks for the help.
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  #2  
Old 09-07-2011, 01:33 PM
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You cannot do it yourself without the proper scanning (read: actual diagnostic equipment) tools that support the Duramax drivetrain.

The balance rates (as they are displayed on a scan tool) are data that the PCM displays and uses to create a smooth idle.
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  #3  
Old 09-07-2011, 01:39 PM
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Many thanks, what is a fair price to pay to have it checked out?

bwellard10
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  #4  
Old 09-07-2011, 04:30 PM
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Typical shops (and I'd only recommend a dealer) will charge a minimum of an hour even though it takes 5 minutes with a warm truck to check the balance rates (and check out the fuel pressure regulator while it's there).

So whatever the shop charges per hour is what you'd be looking to spend at a maximum to just have those two things checked. You may be able to find a shop that will only charge you the time they have into it.
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  #5  
Old 09-07-2011, 05:00 PM
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I have noticed an increased amount of smoke 25k miles after installing OEM remanded injectors. Could this be something other than injectors?
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  #6  
Old 09-07-2011, 11:34 PM
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Originally Posted by bwellard10 View Post
I have noticed an increased amount of smoke 25k miles after installing OEM remanded injectors. Could this be something other than injectors?
what colour of smoke? black or white?

BriteWhiteRam's Sig:2006 Chevrolet Silverado LT 4x4 Crew, LBZ/ALLISON, PPE airbox mod, EGR blocker, EFI Live Tuned by me & Duramaxtuner
TOTALED:2005 Dodge Ram 3500 Laramie 4x4 quadcab, Cummins/modded 48re, edge/juice/attitude
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  #7  
Old 09-08-2011, 12:34 AM
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Hello and thanks for the replies.
I bought the truck with bad injectors and it was puffing out white smoke for sure. Now it appears to be dark gray or black.
Thanks again
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  #8  
Old 09-08-2011, 07:09 PM
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have you checked your air filter or MAF sensor lately?
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  #9  
Old 09-08-2011, 07:22 PM
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Air filter yes, MAF "No" , Easy stuff first right!
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  #10  
Old 09-18-2011, 12:12 AM
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Originally Posted by bwellard10 View Post
Many thanks, what is a fair price to pay to have it checked out?

bwellard10
shop i went today did it for FREE, I'M sure they knew i'd be back for mods tho.

Leftovahs's Sig:You can sleep in your truck, but you can't race your house!!!
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