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

LB7 tear down

Old May 19, 2014 | 08:58 AM
  #231  
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well I talked to the diesel mech this morning before work he said $145-$300 for full diagnostics I told him to do it
 
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Old May 19, 2014 | 07:53 PM
  #232  
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so far...... 3 bad glow plugs which i already knew and under the fuse box under the hood he found a squirls nest and it ate the covers off a few wires he said none of this should be the issue but hes suggesting replacing the 3 bad glow plugs and im off tomorrow so im gonna swing by and see how its going
 
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Old May 19, 2014 | 08:31 PM
  #233  
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well, thats some progress ..... does it run yet ??? LOL
 
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Old May 19, 2014 | 08:48 PM
  #234  
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hes doing like a 5 part deal hes not even done with part 1 haha im just hoping i can make it out of there with my arms and legs LOL!
 
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Old May 19, 2014 | 11:15 PM
  #235  
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Oh i hear that , I think that each time I have to call Car Quest for more dang parts too !!

But hey , Its only money right ???
 
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Old May 20, 2014 | 12:11 AM
  #236  
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at this point i just want my truck running.........
 
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Old May 20, 2014 | 03:09 PM
  #237  
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he said i have to replace the 3 bad plugs before he can move on he said it could be the issue i personally dont think thats the issue but i will replace them so he can continue so far CP3 is drawing well within desired vacuum and is primed hes saying the issue will most likely be glow plugs or injectors or computer related $345 in so far
 
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Old May 20, 2014 | 09:30 PM
  #238  
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well, could be something real simple, fmic is more than likely
 
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Old May 20, 2014 | 10:15 PM
  #239  
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he said "it being a Cali emissions truck the glow plugs work differently and light longer and stay lighted till the engine reaches a set temp then the shut off its to help burn cleaner and reduce unburned fuel when cold or during warm up of the engine and it is possible that with 3 failed its putting the trucking into default mode and not firing the injectors we can not move on with the diagnostics till we rule out the failed glow plugs"

i highlighted what i think is B.S
 
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Old May 21, 2014 | 08:57 PM
  #240  
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looks like the ECM is trashed this is my VIN 1@@#$%%^^&@WEZT43_(* it wont reflash or rest at all when he tried to do anything it said failed to receive signal from ECM
 
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