Finally, once the pressurized fuel enters the injector, it either gets sprayed directly into the cylinder to make a big boom, or if there is extra, it flows back to the tank through the injector return to start its journey all over again.Įvery one of those components can be found on just about every diesel pickup made in the US for at least the last 20 years, whether it’s an HEUI Powerstroke, a 12-valve Cummins, or even the old 6.5 GM Diesels.
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Most of the high pressure fuel inside the rail gets sent straight into the injectors, but there are some conditions like sudden deceleration or a drop in fuel demand which will cause a pressure relief valve to open up and send excess fuel from the rail back to the tank. Next, the fuel enters the injection pump, where it can go one of two places: it either gets pressurized and sent to the rail or goes back to the tank in a return line. Since diesel by nature is a dirty product, there is always at least one filter between the low-pressure pump and the engine to remove any dirt and contaminants, and likely there will be a water separator to remove any H2O which condenses in the tank. Depending on the model, you might have between 25 and 40 gallons of capacity, and on most trucks there is a low-pressure fuel pump which sits inside the tank and pushes the fuel toward the engine at a relatively low pressure. It all starts in the tank, which is where the fuel is stored whenever you fill up. There are many parts which make up the fuel system on a common rail diesel truck, and the path the fuel takes is like a choose your own adventure book there are many different options. It was a great powerplant and was the first of the big 3 to come equipped with common rail fuel injection, but there was one item missing which every other diesel pickup had before and since: a lift pump. One such automotive mystery was started in 2001, when GM introduced the Silverado HD’s powered by the 6.6-liter Duramax diesel V8. While there have been several theories, to this day nobody knows the answer to either.
![fass lift pump install kit duramax fass lift pump install kit duramax](https://m.media-amazon.com/images/I/817C5NurJ3L._AC_SL1500_.jpg)
There are many great mysteries which have remained unsolved over the years, ranging from what’s at the bottom of the Bermuda Triangle to what happened to D.B.
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#Fass lift pump install kit duramax series
The D-Max is well designed for stock trucks or budget minded shoppers, however its suggested that Duramax diesel owners install one of our Titanium Series pumps if you have several fueling upgrades or if you are looking for improved filtration and all the benefits that come with our top selling Titanium Series FASS Diesel Pumps. Since the D-Max Flow Enhancer is a "pusher" pump, all fuel is placed under pressure, helping prevent the introduction of air and vapor. The D-Max Flow Enhancer has been designed to provide your Duramax engine with a constant 8 PSI fuel pressure, aiding the injection system by reduce the amount of work your factory injection pump has to perform, extending its expected life and improving performance gains from aftermarket tuning products. When the factory CP3 injection pump pulls fuel under a vacuum it can introduce air and vapor into your fuel, which can lead to injector failure. FASS D-Max Diesel Fuel Pump Flow Enhancer GM | 01-10 Chevy 6.6L Duramaxĭuramax diesel engines do not come with a factory lift pump, this is why Duramax owners see such great performance and economy gains after installing an aftermarket diesel fuel lift pump.