What to do if there is no pressure on the fuel pump?
If no pressure is present recheck the hose or adapter connection to avoid any false negatives, re-cycle the ignition switch to recheck. Still no pressure? suspect a bad fuel pump, fuel pump relay or fuse. Now start the engine so we can test the performance of the pump.
Is the fuel pump part of the fuel tank?
Servicing your fuel system is easy when you shop here because we have everything you need to do the job. The fuel tank is more than just a reservoir for fuel. On most vehicles it houses the fuel pump and it also may have valves and sensors for the EVAP system.
How to test the performance of a fuel pump?
Now start the engine so we can test the performance of the pump. While the engine is running, the fuel pressure should drop about 5 psi, from the static prime pressure (DPI) then snap the throttle, the fuel system pressure should jump up about 5 psi. this means the fuel pump and pressure regulator is working correctly.
What kind of fuel pump is used for direct injection?
Direct injection fuel systems can be both diesel and regular gasoline which is comprised of a primary pump in the fuel tank and a secondary “high pressure” pump which mounts and is driven by the engine. Regular pressure fuel injection system have just one main pump in the fuel tank.
What happens when the fuel pump goes out on a Nissan Pathfinder?
There are physical signs that you can feel when your Pathfinder’s fuel pump is going out. Before taking anything apart, check to see if your engine’s computer has any trouble codes saved in it. The engine may throw a P0087 trouble code. This trouble code detects that the fuel rail/system pressure is too low.
What does a bad fuel pump sound like?
A priming fuel pump sounds like a high-pitched whine for a few seconds and can be heard with a sharp engine right after the ignition key is turned, but before the starter is engaged. The symptoms of a bad fuel pump match a lot of other common problems that can occur in the Nissan Pathfinder.
Servicing your fuel system is easy when you shop here because we have everything you need to do the job. The fuel tank is more than just a reservoir for fuel. On most vehicles it houses the fuel pump and it also may have valves and sensors for the EVAP system.