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

Replacing Duramax LB7 Injectors 01-04 tips and hints

Old Jan 14, 2010 | 09:57 PM
  #51  
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i have a 03 duramax and he #7 injector is bad and they want to much at thedealer to replace so i am just gonna do it myself and just put all 8 new/rebuilt ones in and i was just wondering when im replacing the injectors do you recommed changing the cups to even if they dont come out when i pull the injectors
 
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Old Jan 15, 2010 | 07:18 AM
  #52  
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Originally Posted by kaz
i have a 03 duramax and he #7 injector is bad and they want to much at thedealer to replace so i am just gonna do it myself and just put all 8 new/rebuilt ones in and i was just wondering when im replacing the injectors do you recommed changing the cups to even if they dont come out when i pull the injectors


if they stay in leave them alone, if they come out you gotta clean them out, i used a red skotch-brite pad
 
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Old Jan 21, 2010 | 11:39 AM
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Great thread, my 03' is at the dealer as I write this.

Quick question, these prices that are being thrown around 200-300 plus for GM injectors, is that for brand new OEM, or rebuilt? And I assume this is the price with a core?




Thank you.
 

Last edited by stonehenge; Jan 21, 2010 at 01:36 PM. Reason: spelling
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Old Jan 21, 2010 | 11:45 AM
  #54  
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dealer price is 350 plus 100-150 core for each one iirc. so thats like 4k from the dealer at thier price. then core it would be a little less. either way theyre expensive as hell.

I do believe dynomite diesel does get them new too, i know when i got them from the dealer the box said reman, but the dates on the injectors indicated they were brand new
 
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Old Jan 21, 2010 | 12:08 PM
  #55  
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Thanks for the response. Im being told that warrenty in Cal is 200,000 7yr, and a year ago it would be an easy to cover, but now with GM (govt motors) i.e. cutbacks, etc, this type of stuff gets kicked back often and falls in the lap of the customer.



again thank you for your help.
 

Last edited by stonehenge; Jan 21, 2010 at 01:35 PM. Reason: spelling
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Old Jan 21, 2010 | 12:16 PM
  #56  
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ive always heard that the injector warrenty was 7 year/ 200k mile.

alot of 03 trucks cant get it warrantied since they were built in 02, but sold as 03's in back in 02.
 
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Old Jan 21, 2010 | 12:40 PM
  #57  
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Yea my bust 7/200,000

And just found out my pig was delivered 8/16/02 and as of 09/16/09 it was up. So my dealership has been hooking me up since Sept.


Oh well, bend over. Hopefully they will be gentle.


Thanks for the input.
 
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Old Jan 21, 2010 | 01:54 PM
  #58  
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if you can get that replacement warrantied
 
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Old Apr 12, 2010 | 07:31 PM
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Nice job. If someone is like me and has the dropsies then they will want to remove the skid plates.
 
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Old Apr 16, 2010 | 04:24 AM
  #60  
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great write up man!! im with K50 on this one to!! doesnt look nearly as intimidating as i thought i would be!! how long did it take you to do both sides? and how much did you pay for the new stock injectors? did they come with the cores also?
 
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