Do I need a lift pump? - Page 2 - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 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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post #11 of 18 (permalink) Old 01-26-2020, 03:58 PM
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Originally Posted by Jwaggonersr View Post
I put a FASS Titanium signature on mine but there are plenty of good cheaper options. I wanted the extra filters though. I also removed the filter under the hood and used a Fass filter delete. I drive a 03. Right off I noticed better idle and better throttle response, nothing on fuel economy though. I would not do the sump kit unless your fuel tank has the gauge issue's some have towards the empty mark. I simply hate the spot where the stock filter was. For plug and play the though The Fass was awesome and easy to put on. The Tuner Im looking at is a Edge, but like you I dont want to blow my truck up or Head gaskets so I would only use the economy and towing tune. I do like the thought of being able to see the injector tables, and changing the ratio for tires. Its a tool bottom line I guess. One thing i am doing really soon is Im going to make a protection plate for the fuel pump do to being so exposed to the rear fender wheel and the ground. Right now the filters are wrapped with a old mudflap to protect them from flying rocks that the rear left tire picks up.
I also put a FASS Titanium on my 03 Lb7 and when I did I had looked around many different options and what I wanted with the install. After checking other lift pumps and looking to build my own with the dual filters I found that the savings was minimal so I bought the Fass which includes everything I needed in one box. I am happy with the install and I also put the Beans feed and return sump on and couldn't be happier. I watched a lot of different videos on installing these items and stuck to the basics but made changes to my install that I thought made it look more professional and feelings of satisfaction with the job done well.

2003 Silverado Fass 165, 45% over injectors, Banks big head, Banks 6 gun, Banks Exhaust and filter. Bed Carpet, Pace Edwards electric Tonneau Cover. 122000 miles
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post #12 of 18 (permalink) Old 01-26-2020, 06:30 PM
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it is EXTREMELY unlikely.
And yet, it happens and does occur. Even following your list of things to do, it occurs. Rampant and end of the world common, probably not...but it only takes once to potentially ruin your day.

Just parking your vehicle for a long period of time with only a partially full fuel tank, thru daily temp cycles, condensation will form in the tank.

Spending $100 on an adapter, so one can run a filter designed for secondary use (no water protection), with a lesser micron filtration rating than if you'd just run a quality filter designed to fit the stock mount in the 1st place....not necessarily prudent.
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post #13 of 18 (permalink) Old 01-26-2020, 11:35 PM
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I always add some fuel additive with each tank its just cheap insurance, always run a filter or filters as well. Only takes one bad batch of fuel. Tanks will heat and cool as well and cause condensation in the fuel system. I use NAPA gold or wix but filters are whatever you prefer, I like a water drain on the filter though. This is just my view and choice.

2003 2500HD LB7,Fass Titanium.
Leveled with Zone Offroad C32N 3" Adventure Series (UCA) Lift System With Black Nitro Shocks.
Magnaflo 5" Welded. Fleece Airhorn.K&N with stock airbox.
Center-Lok Overhead 2 Gun Rack. Rear window 2 Gun rack.
B&W Goose Neck Hitch. Ranch hand Brush guard.
Behind the rear seat 2 gun rack. (Yes I have lots of guns), Fass Filter delete under the hood.
Nerf Bars. PPE Boost Valve.
Stock wheels with 265/75R16 (soon to be replaced)!
Wheels ordered!
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post #14 of 18 (permalink) Old 01-27-2020, 06:02 AM
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Originally Posted by briandude View Post
Thanks for the info guys! I'll check into all this stuff and get myself up to speed.

As far as water in the fuel, I can tell you that I'm not too concerned about that... I'm 50 years old, and I've been around diesel engines and tractors and trucks and filters with water separators ever since I was old and tall enough to step on a clutch, and I've been around in-ground and above ground fuel storage tanks (diesel and jet fuel and gasoline) and the fuel supply chain from pipeline to service pump for many, many years... and I can tell you from near lifelong experience, that the chances of getting water in your diesel fuel from the filling station are almost nil, especially if you get your diesel fuel from a station that does a good amount of regular business. There are water detection systems in place in the storage tanks that will shut down the filling station pumps long before there is ever enough water in the bottom of those storage tanks to get picked up by the suction lines for the pumps. So, I don't believe there is any need worry yourselves too much about water in fuel... if you ever do happen to get water in your fuel, it is much more likely to be a problem with the individual piece of equipment, and not the fuel supply. I'm not saying that it can't happen, but in my experience, it is EXTREMELY unlikely. Frankly, I'd be much more concerned about bacterial growth in the fuel system, than water.
It only takes ONCE...............it is like playing Russian Roulette with a pistol with 1000 chamber cylinder.........it is extremely unlikely you will lose..............but if you do...........NOT GOOD!

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, 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 #15 of 18 (permalink) Old 01-30-2020, 08:34 PM
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I put an airdog 4g 165 on. Their customer service has been great. Takes the strain off the cp3 gear pump. Added filtration for peace of mind. And if the pump quits for any reason there is a check ball inside that will allow fuel to flow like normal. I believe the Fass is the same way and haven't heard much bad about either brand.
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post #16 of 18 (permalink) Old 01-31-2020, 05:40 AM
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Originally Posted by charlie brown View Post
I put an airdog 4g 165 on. Their customer service has been great. Takes the strain off the cp3 gear pump. Added filtration for peace of mind. And if the pump quits for any reason there is a check ball inside that will allow fuel to flow like normal. I believe the Fass is the same way and haven't heard much bad about either brand.
I have never had my FASS quit on me but I did want to know if it was truly a "Flow Thru". To that endI unplugged the Add a Fuse that provides power to the solenoid.

It ran for a week without the LP, about 40 miles a day or so back and forth to work. No issues at all.
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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, 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 #17 of 18 (permalink) Old 02-15-2020, 06:20 PM
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Cp3 may be needing replaced. When mine got weak it would set the check engine
light even with a lift pump.
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post #18 of 18 (permalink) Old 02-24-2020, 12:55 PM
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https://fassride.com/shop/product/fu...-6l-2001-2010/ Got a flyer in my inbox this is about as cheap as i have ever seen them.

2003 2500HD LB7,Fass Titanium.
Leveled with Zone Offroad C32N 3" Adventure Series (UCA) Lift System With Black Nitro Shocks.
Magnaflo 5" Welded. Fleece Airhorn.K&N with stock airbox.
Center-Lok Overhead 2 Gun Rack. Rear window 2 Gun rack.
B&W Goose Neck Hitch. Ranch hand Brush guard.
Behind the rear seat 2 gun rack. (Yes I have lots of guns), Fass Filter delete under the hood.
Nerf Bars. PPE Boost Valve.
Stock wheels with 265/75R16 (soon to be replaced)!
Wheels ordered!
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