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

LB7 tear down

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  #361  
Old 08-07-2014, 11:27 PM
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So are they doing injectors or are you ?

Sounds like you shoudl drive it and see how it does and then go crazy with parts .. just in case .. ya know .. you dont have real great luck ..
.. just sayin ... .. best luck to ya either way .. I have surgery in the morning .. keep us posted on the results ..
 
  #362  
Old 08-08-2014, 10:53 AM
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Originally Posted by Walker.B
injector #3 and#6 are both +15 at idle when you hit the fuel it hazes raw fuel and bogs and misses so looks like I'm going to warranty this set of injectors and put some more in
this would normally mean that these injectors are stuck shut or clogged so no fuel can come out. +15 is the max the ECM can adjust the flow rate by. if it is commanding +15 then it is not seeing the fuel it should be getting in those cylinders.

but from the thread i gather these have already been replaced.
 
  #363  
Old 08-08-2014, 12:30 PM
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it's coming come today ether on a wrecker or being towed with our suburban it's not drivable as when you hit the fuel it just starts sputtering and hazing raw fuel so is there anything I can do to try to unstick the stuck ones or just get it home and torn down to warranty them?
 
  #364  
Old 08-08-2014, 03:49 PM
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it's coming home Monday it Tuesday I got a free wrecker ride home
 
  #365  
Old 08-10-2014, 07:55 PM
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i was in town today i stopped and snapped some pics
http://i1020.photobucket.com/albums/af322/walker121796/mytruck_zps74f9657a.jpg
click where it says photobucket video it opens a picture
 
  #366  
Old 08-11-2014, 10:38 PM
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What a tease, so does it run ?
 
  #367  
Old 08-12-2014, 03:13 PM
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UPDATE!!!!! i found a rag in the intake stuck on the grid heater the dealer left in it i pulled it out it runs like new! i got some money back to and 3&6 went from +15 to 0.1!!!!!!!!:choochoo :


http://vid1020.photobucket.com/albums/af322/walker121796/IMG_2043_zpsb53a5341.mp4
 
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Old 08-12-2014, 07:57 PM
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Thats why I dont trust the dealership. You never know what they are doing. I think many make up problems just to fill their pockets.
 
  #369  
Old 08-12-2014, 08:11 PM
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i agree but i did needed a ECM so thats all i ended up paying for and let me say after it cleared its self out its a beast im seeing 28psi of boost at 1/2 pedal at about 2100 rpm it will throw you back for a stock truck any way im getting a tag monday then ill start planning to bomb it what should be first?
 
  #370  
Old 08-14-2014, 10:21 AM
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Efi Live, then a built transmission
 


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