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?

  #11  
Old 08-15-2011, 08:47 PM
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Is your truck stock
 
  #12  
Old 08-16-2011, 11:53 PM
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ive done a set while in the truck, not fun
 
  #13  
Old 08-17-2011, 07:22 PM
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Originally Posted by 2500HeavyDuty View Post
ive done a set while in the truck, not fun
Mine were done in 20hrs, just need to know the right people, they are a pain in the butt, however its gotta be done
 
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  #14  
Old 08-26-2011, 05:53 AM
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Default Head gasket

Originally Posted by ZX10Aviator View Post
Doing the HG's on my 05 now, Ive had the rig for 5500 miles Curious how many others have gone through this.
I'm getting ready to have mind done if it fails the pressure test. Im loosing coolant out my overflow. It doesn't leak while its running but as soon as I shut I down it starts to purge through the over flow. It wont stop until I open the overflow cap.

---AutoMerged DoublePost---

My mileage just turned over 100,400 .
 

Last edited by fireman-1781; 08-26-2011 at 05:53 AM. Reason: Automerged Doublepost
  #15  
Old 09-02-2011, 06:53 PM
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Default Head gaskets

I had to do mine just after it turned 100k.I had a buddy of mine help me and we had it done in about 20-22 hrs. Before i did mine I had it to the dealers twice and they said they didnt find any thing. But then why did it keep pushing antifreeze out of the resivore and the upper hose would feal like a steel pipe after it sat for about 4hrs. When pulled apart we found that the ring around the cylinder on four of them were failing.
 
  #16  
Old 09-02-2011, 07:02 PM
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Originally Posted by BriteWhiteRam View Post
Mine were done in 20hrs, just need to know the right people, they are a pain in the butt, however its gotta be done

did mine on my own with a bad back, next time if i have to do it id pull the engine out, or lift the cab off.

the biggest annoyance is that damn lb7 downpipe, i broke two 12 point sockets trying to get that thing out. some shops drop the trans because its that much of a pain in the ***.
 
  #17  
Old 09-03-2011, 10:37 AM
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Originally Posted by 2500HeavyDuty View Post
did mine on my own with a bad back, next time if i have to do it id pull the engine out, or lift the cab off.

the biggest annoyance is that damn lb7 downpipe, i broke two 12 point sockets trying to get that thing out. some shops drop the trans because its that much of a pain in the ***.
when I did mine I didnt even pull the turbo, we were able to sneak the intake bolts out, BARELY I didn't say that it wasn't a PITA but its much easier to do in the truck than a powerstroke
 
  #18  
Old 09-03-2011, 04:00 PM
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Originally Posted by BriteWhiteRam View Post
when I did mine I didnt even pull the turbo, we were able to sneak the intake bolts out, BARELY I didn't say that it wasn't a PITA but its much easier to do in the truck than a powerstroke

i didnt pull the turbo out either, but the downpipe isnt a vband clamp on the new models, lb7's have some pain in the *** bolts in them. i pulled the head off with the exhaust and intake manifold on
 
  #19  
Old 09-04-2011, 01:51 AM
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durn LB7's gotta be the difficult ones ehhhhh???
 
  #20  
Old 09-05-2011, 07:58 PM
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mine just blew its a common problem
 

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