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

LB7 tear down

Old Aug 7, 2014 | 11:27 PM
  #361  
4x4manonbroke's Avatar
Diesel Bomber
Joined: Jun 2010
Posts: 3,202
Likes: 143
From: Tacoma
Default

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 ..
 
Reply
Old Aug 8, 2014 | 10:53 AM
  #362  
2004LB7's Avatar
Diesel Bomber
Joined: Dec 2010
Posts: 1,190
Likes: 113
From: Fool's Golden State
Default

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.
 
Reply
Old Aug 8, 2014 | 12:30 PM
  #363  
Walker.B's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Jun 2013
Posts: 382
Likes: 19
From: Dadeville AL
Default

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?
 
Reply
Old Aug 8, 2014 | 03:49 PM
  #364  
Walker.B's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Jun 2013
Posts: 382
Likes: 19
From: Dadeville AL
Default

it's coming home Monday it Tuesday I got a free wrecker ride home
 
Reply
Old Aug 10, 2014 | 07:55 PM
  #365  
Walker.B's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Jun 2013
Posts: 382
Likes: 19
From: Dadeville AL
Default

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
 
Reply
Old Aug 11, 2014 | 10:38 PM
  #366  
4x4manonbroke's Avatar
Diesel Bomber
Joined: Jun 2010
Posts: 3,202
Likes: 143
From: Tacoma
Default

What a tease, so does it run ?
 
Reply
Old Aug 12, 2014 | 03:13 PM
  #367  
Walker.B's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Jun 2013
Posts: 382
Likes: 19
From: Dadeville AL
Default

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
 
Reply
Old Aug 12, 2014 | 07:57 PM
  #368  
2004LB7's Avatar
Diesel Bomber
Joined: Dec 2010
Posts: 1,190
Likes: 113
From: Fool's Golden State
Default

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.
 
Reply
Old Aug 12, 2014 | 08:11 PM
  #369  
Walker.B's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Jun 2013
Posts: 382
Likes: 19
From: Dadeville AL
Default

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?
 
Reply
Old Aug 14, 2014 | 10:21 AM
  #370  
2004LB7's Avatar
Diesel Bomber
Joined: Dec 2010
Posts: 1,190
Likes: 113
From: Fool's Golden State
Default

Efi Live, then a built transmission
 
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 09:10 AM.