How to diagnose a faulty mechanical fuel pump?
Crank the engine and watch how the fuel flows from the line. If you see steady, strong spurts, then the pump works. If you see a weak stream or nothing at all, then you could have a failed pump, a blocked fuel line, a clogged fuel filter, or an empty gas tank. Check the fuel pump pressure.
What can cause a mechanical fuel pump to fail?
Fuel System Leaks Most mechanical fuel pumps have a weep hole on the bottom of the unit. When the internal diaphragm leaks, fuel escapes through the weep hole to notify the vehicle owner of a malfunction. This is one of the more common fuel pump problems found in classic cars that are between 30 and 60 years old.
What happens when the fuel pump goes out on a Mazda B2200?
The fuel pump in a Mazda B2200 delivers fuel to the engine from the gas tank. When the fuel pump goes out, the gasoline in the tank has no way to get to the engine, and the truck won’t be able to start. Fixing the problem involves a lot of work, including dropping the gas tank just to get to the fuel pump itself.
How do you replace gas tank on Mazda B2200?
Place the wood block onto the head of the jack. Lift up the jack until it contacts the bottom of the gas tank. Unbolt the straps holding the tank in place using the 3/8-inch ratchet, extension and sockets, then lower the tank from the vehicle with the jack.
How do you replace a fuel pump on a Mazda?
Unplug the wiring from the assembly and carefully pull the assembly out of the gas tank. Pull the fuel filter off of the bottom of the fuel pump. Disconnect the hose clamp securing the fuel hose to the fuel pump and unplug any connections.
The fuel pump in a Mazda B2200 delivers fuel to the engine from the gas tank. When the fuel pump goes out, the gasoline in the tank has no way to get to the engine, and the truck won’t be able to start. Fixing the problem involves a lot of work, including dropping the gas tank just to get to the fuel pump itself.
Place the wood block onto the head of the jack. Lift up the jack until it contacts the bottom of the gas tank. Unbolt the straps holding the tank in place using the 3/8-inch ratchet, extension and sockets, then lower the tank from the vehicle with the jack.
Unplug the wiring from the assembly and carefully pull the assembly out of the gas tank. Pull the fuel filter off of the bottom of the fuel pump. Disconnect the hose clamp securing the fuel hose to the fuel pump and unplug any connections.