Fass Dodge Fuel Lift Pump Kit - Pump Up The Power - Diesel Tech

With the fuel tank out of the truck, Evans installed the fuel return manifold into the factory fuel filler hose.

The return manifold is spliced into the fuel filler hose and then secured using hose clamps. The FASS lift pump uses this manifold to return agitated fuel back to the fuel tank much like a dry-sump oil pump does in a race engine.

After sealing the fuel tank with the factory sending unit, the tank was ready to be reinstalled. A transmission jack was used to lift the tank back into place.

Evans reconnected the fuel lines and wired them to the sending unit while Hunt bolted the tank cradles into place to secure the tank.

With the fittings of the fuel supply and return installed in the tank, Evans installed the brackets that mount the FASS fuel pump assembly.

The FASS pump required three fuel lines to hook it up. The blue hose shown is the fuel supply line that was connected to the pick-up in the fuel tank. On the opposite end of the FASS pump were two other fittings-a fuel return line that was connected to the manifold in the filler hose and an injection pump supply line that was connected to the CP3 injection pump on the engine.

The FASS pump required three fuel lines to hook it up. The blue hose shown is the fuel supply line that was connected to the pick-up in the fuel tank. On the opposite end of the FASS pump were two other fittings-a fuel return line that was connected to the manifold in the filler hose and an injection pump supply line that was connected to the CP3 injection pump on the engine.

Evans ran the injection pump supply line from the FASS pump along the frame rail underneath the truck up to the CP3 injection pump. Here Evans removed the stock fuel supply line and replaced it with a new line from the FASS pump.

With the installation of all the mechanical parts completed, all that was left to do was connect the wires from under the hood to the FASS pump. This step was fairly easy thanks to the wire harness that is included in the FASS kit. Kelley plugged in the supplied harness to the FASS pump and ran the wires along the frame rails to the engine bay. The factory lift pump power source was disconnected and the FASS harness connected. A relay was also installed and connected to the battery using ring terminals. One final check was made to make sure all fuel lines and wires were routed out of the way of any moving parts. Kelley got inside the truck and turned the key to the "On" position without starting the engine to feed fuel to the injection pump. After a couple of key cycles, the truck started without hesitation.