A common product that is equipped or installed on diesel trucks is widely known as a Lift Pump. There are other names for this type of diesel fuel pump such as; Fuel Preporator, Fuel Air Separation System, or just Fuel Pump. Going back to the term lift pump, some might ask,”what is a lift pump? How does it work? Do I need a lift pump on my diesel pickup truck?”
Lift Pump definition -a suction pump that raises a column of liquid to the level of a spout out of which the liquid runs of its own accord. If your diesel pickup truck came equipped with an inline or in-tank fuel pump from the factory that this definition of a Lift Pump is all that it does.
The PureFlow AirDog Fuel Preporator does much more for your diesel fuel system, and this is how it works: There are some key actions that an AirDog II-4G Fuel Preporator (check out the 4G difference on our Blog) does that others do not, and there are some AirDog Lift Pump models that look differently than others, such as the Raptor 4G. However, in the simplest terms an AirDog Fuel Preporator is a diesel filtration system that separates air from the diesel fuel along with moisture/water and particulates. The AirDog Fuel Preporator’s other duty is to deliver the filtered diesel fuel at a set pressure to the CP3, CP4, or Injection Pump while eliminating cavitation and vapor. Some AirDog Lift Pumps have an adjustable regulator to help maintain positive pressure at idle and while increasing throttle levels.
Note:When adding an AirDog Lift Pump to a modified diesel truck maintaining positive pressure is key to keeping fuel in the lines and in the fuel rail under wide open throttle (WOP). That is why the team at ADLP always recommends running a PureFlow AirDog Lift Pump on all custom tuned diesel trucks, such as trucks running EFI Live Programming or other similar programs, and tunes.