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02-13-2013, 02:16 PM
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#1 (permalink) |
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Diesel Specialist
 
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@#%*ing Fuel Filter Head
History:
-At approximately 135,000 miles I installed a Nicktane CAT adapter on the stock filter head. At this same time I installed new o-rings in filter head as preventative maintenance, since I was in there already. This was all done towards the beginning of 2012. -In July 2012 I installed an Airdog II 165 -October 2012 my filter head starts leaking fuel everywhere, but only randomly it seems. It's bad enough that it covers the frame rail below the filter. I took the filter head apart and examined it to look for damaged o-rings. I found nothing and put it all back together. Everything is peachy for about a month then bang it starts leaking again. -So over Christmas while I was installing new injectors I put another rebuild kit in the filter head thinking I must have damaged one of the o-rings. Problem: Everything had been fine since Christmas till now. It has started leaking all over again. I can't for the life of me imagine why this thing just randomly decides to start spewing fuel. Everytime I rebuilt it I checked to make sure it held a vacuum and all seals were replaced. When it leaks the entire top of the filter head is covered in fuel and then runs down the filter and onto the frame rail. There is no performance drop or any symptoms of it leaking on than the soaked frame rail I see when I walk by my passenger side. Any ideas? Could the Airdog be pressurizing too much and pushing fuel past the o-rings? this is getting really frustrating. I hate a leaky vehicle. Thanks for any help.
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Brent 2005 Chevrolet Silverado Crew Cab 2500HD LLY 4x4 EFI Live V2 DSP5 tuned by Idaho Rob (ATP) Edge Insight CTS w/ ebay backup camera,EGR Blocker Plate, LBZ MP, PCV Reroute, Pump Rub Upgrade Transgo SK, swap over to TranSynd, Earl's Temp-A-Cure Transmission Cooler, MBRP 4" Turbo Back Aluminized Exhaust (no CAT), BD Full Bore Exhaust Manifold, Insynerator DSL 3" Down Pipe Banks 3" Monster Boost Tubes (Driver & Passenger sides), Banks Ram Air Intake for LBZ w/Super Scoop Nicktane 2 micron CAT filter adapter, AirDog II 165, PPE Shim Kit, All 8 Ice Picked Ford Taurus Efans mod Currently in the process of sound deadening  2005 GMC Sierra 1500 4x4 (2008-2011) 1997 GMC sierra 1500 4x4 (2004-2008) 1988 Toyota Pickup 4x4 (1998-2004) |
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02-13-2013, 05:58 PM
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#2 (permalink) |
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Diesel Technician
Join Date: Sep 2010
Posts: 308
iTrader Score: 0 reviews
SoCal Diesel Trucks Member Armed Forces Club Member |
Just delete the factory filtrr head completely and put a CAT 1R 0751filter on the airdog.
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James 05 LLY CC/SB EFI Live, ML Trans/Converter, ADII 165 and some little mods. Coming soon: Home made up pipes, 3" Y bridge and HD bumpers. |
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02-13-2013, 06:59 PM
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#3 (permalink) |
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Supporting Vendor
 
Join Date: Jul 2010
Location: St. Louis Metro
Posts: 3,101
iTrader Score: 0 reviews
Illinois Diesel Power (IDP) Member Midwest Smokers Member |
Filling up at the same fuel pump each time?
Biodiesel will cause seals to swell, while #2 will cause them to shrink. If you're bouncing back and forth between fuels that might be the culprit.
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2005 D-max w/5-Speed Ally 2WD Chevy Silverado 2500HD, CC/SB LS - EGR Blocker Plate & PCV Re-Route - 2" Drop Shackles - Aluminum Fuel Filter Bleeder Screw - Kool Vue Extendable Towing Mirrors (Leveled) - 20" Wheels w/275/55/20 XL Hancook Ventus AS tires - Auto Meter Phantom 45 PSI Boost & EGT Gauge - Carter 4601HP 100GPH @ 18PSI Lift Pump w/Quick Fuel Regulator @ 10.5PSI, Napa 4770/3528 Base/Filter - MBRP 4" Exhaust w/All Season Diesel Performance 3" Down Pipe - Kitty Died - LBZ Turbo Mouthpiece - 5DSP EFI Live by Danville Performance (338/392/417/498 & 338 w/Lope HP Tunes) w/Edge Insight CTS - 20.1 MPG @ 392 HP @ 70 MPH - 16.8 MPG City @ 392 HP (Hand Calculated) - Pioneer AVH-P3400BH through Bose Amp/Speakers - Bilstein Shocks 24-186735 & 24-186742 (5100s) 
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02-13-2013, 09:35 PM
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#4 (permalink) |
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Diesel Master
Join Date: Jun 2007
Location: Huntington Beach, CA.
Posts: 1,390
iTrader Score: 12 reviews
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Same thing happened to me. I removed the OEM fuel filter head and installed a Nicktane Billet Aluminum Filter Head.
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2006 LBZ/Allison 4WD CC LB LT-2 Born 10/20/06~ SoCal Diesel Stage 2 Motor with Billet Main caps, crower rods and 70 over injectors ~ Kryptonite Front end www.DMAXSTORE.com ~ Stage 5 by MikeL.~RDL Cast-Flow Manifolds and PPE up-pipes. Compound Turbos 483 double batmo over GT4094VA 
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02-13-2013, 11:19 PM
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#5 (permalink) |
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Diesel Specialist
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Have you checked the filter head for a crack?
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Silver Birch Metallic 2004.5 GMC K2500HD with 265/75's Banks super scoop, tubing, intercooler, and cat back with the IQ on the Window (for now). BD driver side Exhaust manifold. Airdog 150 on frame rail. Amsoil synthetics for lubrication, and dual Amsoil filters on the driver frame rail. PPE centrifuge install. EGR blocked. PCV rerouted. Resonator blocked (reinstalled for looks). Bladerunner installed. Dead kitty by MBRP (front pipe) and down tube replaced with the MBRP (heat wrapped from the turbo down to the front pipe). Mike L transmission. Original had 152,000 on it and was still running OK but had been limped several times  . Performax Gauges by ISSPRO in pod over mirror and overhead console (console pod by PPE). ----Looking to do an onboard air with a set of truck air horns. Want Nathan K5LA's but not in the budget at the moment.---- Added to my Dmax Fleet is 06 LBZ. Banks intake and exhaust, PROFAB downpipe and MBRP dead kitty replacement pipe. More to come.....
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02-14-2013, 12:34 AM
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#6 (permalink) | |
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Diesel Specialist
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I have thought about removing the filter head, but want to keep the airdog filters and CAT.
I do fill at the same station every time. Quote:
I did check the head for cracks, none that I could find.
__________________
Brent 2005 Chevrolet Silverado Crew Cab 2500HD LLY 4x4 EFI Live V2 DSP5 tuned by Idaho Rob (ATP) Edge Insight CTS w/ ebay backup camera,EGR Blocker Plate, LBZ MP, PCV Reroute, Pump Rub Upgrade Transgo SK, swap over to TranSynd, Earl's Temp-A-Cure Transmission Cooler, MBRP 4" Turbo Back Aluminized Exhaust (no CAT), BD Full Bore Exhaust Manifold, Insynerator DSL 3" Down Pipe Banks 3" Monster Boost Tubes (Driver & Passenger sides), Banks Ram Air Intake for LBZ w/Super Scoop Nicktane 2 micron CAT filter adapter, AirDog II 165, PPE Shim Kit, All 8 Ice Picked Ford Taurus Efans mod Currently in the process of sound deadening 2005 GMC Sierra 1500 4x4 (2008-2011) 1997 GMC sierra 1500 4x4 (2004-2008) 1988 Toyota Pickup 4x4 (1998-2004) |
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02-14-2013, 12:35 AM
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#7 (permalink) | |
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Diesel Specialist
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Quote:
__________________
Brent 2005 Chevrolet Silverado Crew Cab 2500HD LLY 4x4 EFI Live V2 DSP5 tuned by Idaho Rob (ATP) Edge Insight CTS w/ ebay backup camera,EGR Blocker Plate, LBZ MP, PCV Reroute, Pump Rub Upgrade Transgo SK, swap over to TranSynd, Earl's Temp-A-Cure Transmission Cooler, MBRP 4" Turbo Back Aluminized Exhaust (no CAT), BD Full Bore Exhaust Manifold, Insynerator DSL 3" Down Pipe Banks 3" Monster Boost Tubes (Driver & Passenger sides), Banks Ram Air Intake for LBZ w/Super Scoop Nicktane 2 micron CAT filter adapter, AirDog II 165, PPE Shim Kit, All 8 Ice Picked Ford Taurus Efans mod Currently in the process of sound deadening 2005 GMC Sierra 1500 4x4 (2008-2011) 1997 GMC sierra 1500 4x4 (2004-2008) 1988 Toyota Pickup 4x4 (1998-2004) |
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02-14-2013, 07:43 PM
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#8 (permalink) |
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Diesel Master
Join Date: Sep 2010
Location: Maritimes, Canada
Posts: 2,373
iTrader Score: 0 reviews
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What line pressure (psi) are you running on the Airdog?
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2005 Silverado EC/SB, LLY, 4WD, EFI DSP5 V2 (Idaho Rob at ATP), Edge CTS w/ EGT probe, LML Exhaust Manifold, PPE shimmed FPRV, Banks LBZ Ram Air Intake, RDL EGR Delete, LBZ Turbo Mouthpiece (w/ blocked resonator & rerouted PCV), Kennedy twin lift pumps w/ megafilter, Corsa 4" Turbo Back 304 SS Exhaust, Mike L tranny cooler, EXAXT Steering System, Redhead Power Steering Box w/ Amsoil PS fluid, Green Torsion Keys, Allison Deep Pan w/ Suncoast Filterlock and Transynd ATF, Bilstein 5100's (Norcal), Cognito UCA's, 17" NBS alloy rims, 265/70R17 Michelin LTX M/S2's, Pioneer AVH-P3200BT, CubbyCam Backup Camera, Pop & Lock Power Tailgate Lock, Extang Solid Fold Tonneau Cover, Tekonsha P3 Brake controller, Alphatherm AT-38OD Washer Fluid Heater 2011 Forest River Surveyor 235RKS |
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02-14-2013, 08:04 PM
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#9 (permalink) |
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Diesel Master
Join Date: Sep 2007
Location: So. Calif.
Posts: 3,764
iTrader Score: 1 reviews
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Where is it leaking from-??
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2004.5 LLY - EC-LB- LT - 64 gallon Aero tank, CAI, de-badged, fender vents, MikeL-6 spd-Transgo, tow mirrors, gauges- Putnam XDR, shell, BU camera, Cabin Filters, GPS, Bluetooth, Sirius, PPE, LBZ-MP, Head gaskets 
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02-14-2013, 08:09 PM
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#10 (permalink) |
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Diesel Fanatic
Join Date: Mar 2006
Location: Canada - eh
Posts: 85
iTrader Score: 0 reviews
Alberta Coal Rollers Member |
if I may jump in
I have/had the same issue, mine was seeming from the thin O-ring under the plunger. No damage to the o-ring
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05 - K2500 ext.cab - RIP  07 classic K2500 ext.cab Mr Duck http://dmaxstore.com/ http://www.alligatorperformance.com/ |
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