Chevy/GMC Duramax 06-07 LBZ Discussion of Chevy and GMC Trucks with LBZ Duramax Turbo Diesel Engines

Wont start after sitting for a few days...any ideas????

Old Aug 31, 2009 | 01:54 PM
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Edge33's Avatar
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Default Wont start after sitting for a few days...any ideas????

So the truck has an unusual problem, after it sits for a few days it wont start, it cranks but takes a bit to fire. It doesnt throw any codes either. Im assuming im getting air in the fuel system some how. The drive way has a slight angle but nothing drastic. Any suggestions? Thanks.


The dealer said its not uncommon !!! hmmm i have to disagree
 
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Old Aug 31, 2009 | 02:18 PM
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Sounds like your fuel filter is leaking down. I've seen 4 or 5 do it.
I would change the filter and O-rings, and then look towards the rest of the supply fuel system!
 
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Old Aug 31, 2009 | 03:10 PM
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also look at the water in fuel sencer at the bottom of the fuel filter the drain has been knowen to leak...sometimes it wont leak on the ground but just anuff to let in air...hope this helps!!
 
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Old Sep 1, 2009 | 05:05 PM
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Thanks guys ill check into both...
 
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Old Sep 7, 2009 | 12:32 PM
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even just not getting the fuel filter tight enough will do it, also, try to reprime the system and see if that helps
 
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Old Sep 7, 2009 | 03:46 PM
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If it's more than a filter, it could be a CP3
 
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