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Engine Knock please help

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  #11  
Old 02-05-2011, 08:46 PM
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try updating to the latest version 2.5.3
 
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  #12  
Old 02-05-2011, 09:09 PM
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2.5.1 is what it is right now
 
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  #13  
Old 02-06-2011, 05:04 PM
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My LBZ will knock when its really cold, even after engine temps are up, you still get a little injection knock/rattle
 
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  #14  
Old 02-06-2011, 07:10 PM
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Originally Posted by BriteWhiteRam
My LBZ will knock when its really cold, even after engine temps are up, you still get a little injection knock/rattle
This knock comes and go's,i have had the truck for 2 years and heard it knock cold and hot but this is totally different,like a rod but it cant be cause it comes and go's.
 
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  #15  
Old 02-06-2011, 09:46 PM
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how does the truck run otherwise?? low on power? extra smoke? smell of fuel? have you checked the oil?
 
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  #16  
Old 02-06-2011, 09:59 PM
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truck runs normal,no smoke ever,same power,no smell,oil was changed 1500 miles ago and stilll full,will hold 80psi plus cold and 40-60 warm
 
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  #17  
Old 02-06-2011, 10:04 PM
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still getting engine codes?
 
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  #18  
Old 02-06-2011, 10:06 PM
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have not checked but i dont think i will cause i have not had the BD on it an been really easy on it.
 
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  #19  
Old 02-06-2011, 10:24 PM
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the only next culprit that I can think of is maybe the CP3... but Im not sure, I wish there were more duramax guys on this site
 
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