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

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  #1  
Old 12-01-2012, 06:54 PM
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Default 07 LBZ Problem

Hey all, my father-in-law has an 07 Classic with the LBZ. While driving down the road it just cut out and died, like starved for fuel. Fuel pump has previously been replaced not long ago. It started back up and drove for a bit and now it's happened again. It was just at a shop for an unrelated issue (this symptom happened at the same time) and supposedly didn't throw any codes. I'm not an expert by any means, so can anyone point me in the right direction? Father-in-law thinks it may be the primer on the fuel pump, but I've got no clue. Any help would be most appreciacted. Thanks in advance!
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  #2  
Old 12-01-2012, 08:14 PM
Diesel Wrench

   

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It is possible. An air leak can cause the engine to stall, it would likely hickup or stumble a little bit before cutting out unless it was during idle.

try replacing the rubber line coming out of the fuel filter with a clear hose and check for air bubbles.

2004LB7's Sig:2004 LB7 Duramax, EFI Live with DSP5 upgraded Tune
stage 4 SC transmission,5" exhaust
160 lift pump, homemade dual fuelers
water injection, 305/70/16 tires
all built up from a salvaged vehicle by me
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  #3  
Old 12-01-2012, 09:29 PM
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the primer can cause that.

diesel pap's Sig:Dodge Cummins Electric Blue Mega Cab
AFE Intake, Smarty, Edge Juice W/Attitude(for gauges), Mighty Diesel Head Bolts, 5" Magnaflow, Royal Purple & Mag-Hytec Deep Tranny Pan

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  #4  
Old 12-23-2012, 05:28 PM
Diesel Fan

   

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you replaced the fuel pump?? the CP3??? because that is the only pump you have unless it is a van which I am pretty sure it has a lift pump, try the primer rebuilt or the rubber lines from the drivers door to the Cp3, add a lift pump and vacume will never be a problem again

jevanb's Sig:06 LBZ CC 4x white Lt
downpipe to 4inch, reroute,blocked,100 Gal transfer tank, gauges ISS pro, Nicktane fuel filter adapter,AD2 165, PPE mod air box, DSP5 from ATP

wildcat 344QB,pullrite superglide
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  #5  
Old 12-25-2012, 02:58 PM
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Sry to bother you with a stupid question, but I'm new to the Forum websites. How do I post a question on a thread, or how do I start a thread?
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  #6  
Old 12-26-2012, 12:24 PM
Diesel Fan

   

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Originally Posted by TXDD 2009GMC View Post
How do I post a question on a thread, or how do I start a thread?
you all ready did.... but go to the area that you want to ?? in and start new thread
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