Fass Fuel Systems

Category: Duramax Fass Pumps Why?

5 Reasons Why A Duramax Needs A Fass Lift Pump

September 28th, 2023

A FASS (Fuel Air Separation System) pump is beneficial for a Duramax diesel truck for several reasons, below is the most crucial top 5 reasons a Fass Duramax Lift Pump System:

1. Improved Fuel Filtration: FASS pumps come with advanced filtration systems that can remove smaller contaminants from diesel fuel. Fass fuel filters clean fuel down to 2 microns, thats about more than half better than most stock fuel filters. Ultimately leading to cleaner fuel entering the injection pump injectors and engine. This can help prevent injector clogs and fuel system damage.

2. Increased Fuel Flow: FASS pumps can provide a consistent and higher fuel flow rate to the engine, ensuring that the engine receives an adequate supply of fuel, especially during high-demand situations like towing heavy loads or performance situations.

3. Enhanced Fuel Quality: These pumps can eliminate air and vapor from the fuel, ensuring that the engine receives a more consistent and pure fuel mixture. This can improve combustion efficiency and reduce the risk of engine knock or damage. The Fass water separator is over 99% efficient at removing water and air from diesel fuel.

4. Extended Injector Life: By delivering cleaner fuel and maintaining proper fuel pressure, FASS pumps can contribute to extending the lifespan of the fuel injectors, which are costly components to replace in a diesel engine.

5. Increased Performance: Some Duramax diesel truck owners install FASS pumps to optimize engine performance, as they can help improve fuel atomization and combustion, potentially resulting in increased power and fuel efficiency.

It’s important to note that while FASS pumps can offer these benefits, one of the most important reasons to install a Duramax Fass Lift Pump is because all pre L5P generation trucks did not have a lift pump from factory. The stock injection pump is burdened by having to suck fuel from the tank instead of allowing the Fass pump to supply it. upgrading to a Fass Lift Pump takes the strain off the injection pump thus providing longer life of the entire fuel system.
Do I really need a lift pump on my Duramax?

October 21st, 2022

All generations of the Duramax diesel engine except for the L5P have a fuel system that does not use a lift pump. So many always ask what does a lift pump actually do and do I really need a lift pump on my Duramax?

We are going to answer those questions today. To start let us look at the benefits from installing a lift pump for Duramax diesel engines. Diesel engines work on high compression and fuel, so clean diesel fuel without any air bubbles is vital to keep the engine running smoothly. The factory Duramax fuel system is made up of 2 key components. The Duramax fuel injectors obviously deliver fuel to each cylinder, and the Injection pump. The Injection pump whether it be a CP3 or a CP4 is a high pressure pump that pulls diesel fuel from the tank using a vacuum action and then delivers the fuel to the injectors.

Air bubbles in fuel are terribly harmful to Duramax injectors and injection pumps, it’s always been common sense that dirty fuel is harmful but most do not understand how detrimental air is. Air bubbles in diesel will tear up your trucks fuel system and can be the most costly parts to get repaired.

Fass Duramax Lift Pumps deliver fuel to the injection pump to eliminate the need for any air bubble creating vacuum action. The delivery of the fuel without air alone should be enough to answer the question, Do I really need a lift pump on a Duramax. But the Fass lift pump goes even further cleaning and actually polishing fuel ridding of all dirt, debris and grime down to 2 microns. 2 microns of filtration is better than most all of factory fuel filters. Install a Duramax Fass lift pump is a key step in keeping your Duramax diesel pickup on the road for years to come.
Best Lift Pump For Duramax

September 15th, 2022

Choosing Best Lift Pump For Duramax

To understand which brand is the best lift pump for your Duramax Diesel engine first it is important to know why a lift pump is important for any Duramax diesel truck and its fuel system. Diesel fuel systems on trucks are the most vital pieces to keep healthy to keep your truck on the road and clear form heavy shop labor rates, so when its comes to a keeping your truck on the road and out of the shop its vital to use information and understand why its some important to choose the Best Lift Pump For Duramax engines.

The Duramax engine fuel system is ran by a very reliable CP3 injection pump in the earlier generations from 2001 to 2010. In 2012 the very unreliable CP4 pump was introduced. Both of these injection pumps mounted under the hood use vacuum to draw fuel from the tank to feed the fuel injectors.

Injection pumps like the CP3 and CP4 are very expensive and labor intensive to replace. So now let’s talk about choosing the best lift pump for Duramax engines. Water and air separation is the most important thing to protect the injection pump. No Duramax lift pump removed more air and water from diesel fuel than Fass. Fass Duramax lift pumps are equipped with the best in class XWS-3001 water separator filter that removes 99% of water over 165 gallons an hour. That itself being a key different form cheap Duramax lift pumps, some like the Air dog pumps water separator is only efficient up to 67 gallons per hour. So if you in a 100GPH or 165 GPH pump and you can not remove the water from fuel your causing more harm than good.

Fass has proven time and time again to be the best lift pump for Duramax engines no matter how old or new. Less than 2% of all Fass pumps ever fail, Fass lift pumps have a lifetime warranty, built better with no comparison right down to the last quick disconnect, and most importantly Fass Duramax Lift Pumps are going to deliverer more clean, waterless fuel to your truck for longer life, better fuel milage and performance.

Category: Duramax Fass Pumps Why?

5 Reasons Why A Duramax Needs A Fass Lift Pump

Do I really need a lift pump on my Duramax?

Best Lift Pump For Duramax