Air or Electrical ? - Chevy and GMC Duramax Diesel Forum
04.5-05 LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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  • 3 Post By Hook'em_Horns!
 
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post #1 of 7 (permalink) Old 08-25-2019, 12:43 AM Thread Starter
 
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Air or Electrical ?

Hey Truck Techs, wondering if any have had this issue. Having a no start issue. Just up and happened about a month ago. I used the on board primer, 4-5 pumps had fuel, but also air. Engine started. Had to do this a few times, but not every time. Engine runs great when running and always has. I've heard about some wiring harness issues with this model. I did replace the in-tank fuel pump, engine started great and re-started great, three days later, no start until I primed again. Have also noticed letting off ignition switch quickly, IE letting off before hearing engine start, allows engine to start. Not seeing or smelling any fuel leaks is making me think electrical. Truck is a 2005 Silverado 3500 crew cab long bed, not a dually. And only has 95,000 miles. Love when this thing is pulling my 35' 11500# travel trailer, it walks the dog.. Any one experienced this issue before? Thanks
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post #2 of 7 (permalink) Old 08-25-2019, 03:23 AM
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Your filter head is leaking, losing prime.
Replace.
JimmyD, M.A.M. and rta1197 like this.

2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air...EFI'd by Rob
2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air

Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab
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post #3 of 7 (permalink) Old 08-25-2019, 05:20 AM
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The filter head seals can be replaced for less than $10. It's good to give that a try first before spending the extra for an entirely new filter head.

2005 LLY 3500 CCLB 215,000 miles
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post #4 of 7 (permalink) Old 08-25-2019, 06:14 AM
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Quote:
Originally Posted by Shibby6600 View Post
The filter head seals can be replaced for less than $10. It's good to give that a try first before spending the extra for an entirely new filter head.
You can get a new head complete with a new FF and WIF for around $100. A good and foolproof solution.

You can rebuild it but for the price the new head with the above is a much more cost/time solution.

2008 Silverado 2500HD CCSB LTZ Diesel
FASS 95 Lift Pump (with Baldwin filters), Edge Insight CTS Monitor on a Windshield Mount, Nicktane Fuel Filter Adapter w/ CAT 306-9199 UHE tertiary fuel filter, Bilstein 5100 Stock Height, MBRP Downpipe back 4" exhaust with muffler and FTE 30" resonator/muffler, Sinister EGR Delete, Tuned but wont say who did it, Bushwacker Bed Rail Caps, AMP Research Bedstep, Fumoto oil drain valve, Dorman PS Oil cooler, Pioneer AVIC 7200NEX GPS/Stereo, Air Lift LoadLifter 5000 Air Bags.
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post #5 of 7 (permalink) Old 08-27-2019, 04:33 AM
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$100 can be worth different things to different people. It's good to give options so someone doesn't think a new one is the only fix available.

2005 LLY 3500 CCLB 215,000 miles
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post #6 of 7 (permalink) Old 08-27-2019, 04:49 AM
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Quote:
is the only fix available.
Cheaper, if it works.
Not all potential leak areas are serviceable with the 6 seal set is all.

2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air...EFI'd by Rob
2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air

Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab
I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!"
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post #7 of 7 (permalink) Old 08-27-2019, 10:11 AM
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Quote:
Originally Posted by Hook'em_Horns! View Post
Cheaper, if it works.
Not all potential leak areas are serviceable with the 6 seal set is all.
Exactly.

Earlier this year my filter head began leaking. I bought a seal kit and installed it. Didn't stop it.

I had to go ahead and get the whole setup from XDP. Problem solved.

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LLY GMC CC SWB 2500 HD 4x4
Bully Dog intake (existing)
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