Tag: Duramax LB7 Lift Pump

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.
Duramax LB7 Lift Pump

October 5th, 2022

A common question we are going to answer today is, should I put a lift pump on my LB7 Duramax?

Duramax LB7 Diesel Engine

To properly answer why you should put a lift pump on a LB7 Duramax is to first understand why a Duramax lift pump is important and what does the lift pump actually do? The stock LB7 Duramax fuel system is made up of 2 key components. The injection pump, also known as the CP3 pump, operates at high pressure and draws fuel from the fuel tank to feed the injectors. The injectors receive the fuel from the Duramax CP3 and deliver diesel fuel into the engine cylinders.

The stock Duramax LB7 fuel system has no water air separation which is a major benefit when switching to a Duramax LB7 lift pump because the lift pump system removes water and air from fuel. Water and or air in diesel fuel is extremely detrimental to the costly LB7 CP3 pump and all Duramax fuel injectors.

Speaking of dangerous air in diesel fuel, because of the way the Duramax injectors are feed by the CP3 drawing fuel from the tank using vacuum, there is no way to eliminate the air from the fuel without a LB7 lift pump. The Fass Duramax LB7 lift pump is a electric fuel pump that feeds the CP3 with a constant flow of clean airless fuel, cutting out the vacuum actions that allows air to enter the fuel system. The Fass Duramax lift pump also filters fuel down to 2 microns while untiring a water and air separation filter that removes 99% of water from fuel.

In order to truly maintain a clean fuel system that contains little to no air or water, a Duramax LB7 lift pump is one of the best LB7 upgrades anyone can preform.

Tag: Duramax LB7 Lift Pump

5 Reasons Why A Duramax Needs A Fass Lift Pump

Do I really need a lift pump on my Duramax?

Duramax LB7 Lift Pump