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

01 LB7 Head Gasket Issues need help

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  #21  
Old 09-29-2014, 02:51 PM
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Oh okay so no need to really do that then. Are the cylinder heads interchangeable through out 01-04.5 on the Lb7
 
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  #22  
Old 09-29-2014, 03:43 PM
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01-04. and yes
 
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  #23  
Old 09-29-2014, 03:48 PM
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Okay ill be getting my heads done soon. What do you think about my fuel Injection Pump? or my Fuel Pressure Regulator?
 
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  #24  
Old 09-29-2014, 04:54 PM
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have you prssure tested the pump?
 
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  #25  
Old 09-30-2014, 09:02 AM
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I think so but im not to certain. What are the stock specs ill be looking for?
 
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  #26  
Old 09-30-2014, 09:19 AM
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Its just really weird. Before we tore down the truck the first time it was running perfect and once we put everything back in and started it up it started running like this.
 
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  #27  
Old 10-01-2014, 12:13 PM
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it should be abel to generate 23kpsi at idle. u can unplug the fpr and watch the rail pressure and what it goes up to.
 
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