LB7 Performance Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines Related To Performance And Longevity

How to diagnose/repair leaky injectors?

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Old 07-12-2012, 02:10 PM
Spurrit's Avatar
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Default How to diagnose/repair leaky injectors?

So, the truck I'm getting sounds like it has the typical D-max issues, with the leaky injectors causing a blown head gasket. Is there any way to fix the injectors, or find out which one was leaking?
 
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Old 07-12-2012, 11:52 PM
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remove the glowplugs and the FCIM fuse. crank the engine over, the glowplug holes that fuel sprays out of are the ones
 
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Old 07-13-2012, 10:01 PM
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leaky injectors cause blown head gaskets?

whats leads you to believe your gaskets are blown?
 
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Old 07-23-2012, 11:24 AM
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Originally Posted by 2004LB7
remove the glowplugs and the FCIM fuse. crank the engine over, the glowplug holes that fuel sprays out of are the ones
if the injectors are stuck open that method will work.

there are a few other tests that can be done, like a balance rate test using a scan tool like efi live, or a snapon can tool.



why do you think your head gasket is blown?
 
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