Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

How many here have had a head gasket failure?

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  #21  
Old 09-07-2011, 10:18 AM
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Where is a good place to order my hg's ? Do I have to replace my injected seals as well?
 
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geatgavi (01-27-2015)
  #22  
Old 09-11-2011, 01:39 PM
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I got a dmax with 170000 bone stock with a k&n. I have had no problem other that a alternator, and some u joints. I also use it as a snow plow truck so its been ran good. I think the key to getting this trucks to run forever is to leave them stock. Yea i know that's boring and that's why i have begun my upgrading by ordering exhaust.
 
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geatgavi (01-27-2015)
  #23  
Old 10-06-2011, 11:43 PM
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Default BLOOOOOWN

215000 miles when I bought it and the gaskets are just barely blown, I figured it out when I tried to check the coolant in the morning and it came gurgling out like there was a big bubble of compressed gas in the engine.
Dang it!
 
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geatgavi (01-27-2015)
  #24  
Old 01-22-2015, 09:37 PM
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Just had mine done 137000,Headgaskets and waterpump,5 grand at the stealer,Hurt like a SOB,But ya gotta do what ya gotta do
 
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geatgavi (01-27-2015)
  #25  
Old 01-26-2015, 11:30 AM
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Default Head gaskets done at 125k

I went round and round with the dealer that my head gasket was blown and they kept telling me that there tests say they are fine. One monday morning a buddy of mine helped me tear into it,found 4 of the 8 cylinders were failing right around the ring of the cylinder.I gave him a few bucks and still had almost 3k into it. Oh that included the water pump.Back up and running wednesday after noon.
 
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geatgavi (01-27-2015)
  #26  
Old 02-06-2015, 02:02 AM
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this thread is so old
 
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geatgavi (04-07-2015)
  #27  
Old 02-10-2015, 12:30 AM
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Default head gasket

anyone take the front fenders off to change the head gaskets
 
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geatgavi (04-07-2015)
  #28  
Old 04-06-2015, 12:15 PM
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136k and I'm just about to replace mine.
 
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geatgavi (04-07-2015)
  #29  
Old 04-06-2015, 03:11 PM
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The gaskets don't really blow out, they just move around due to aluminum heads, then they start leaking. Even unmodified engines will do it.
 
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geatgavi (04-07-2015)
  #30  
Old 03-21-2021, 11:16 PM
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So....
 


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