Fuel Pump, Fuel Injection & Fuel System Repair
 The fuel system of a vehicle functions to store and deliver fuel to the engine's cylinder chamber where it can be mixed with air, oxidized and burned to generate power. The major components of the fuel system include the fuel tank, fuel pump, fuel filter, fuel injectors and carburetors. Fuel, either gasoline or diesel is stored in the fuel tank. The fuel pump draws fuel from the tank and feeds it via fuel filter to the fuel injector or carburetor, then finally to the cylinder chamber for combustion.
Fuel pumps come in two types: electric and mechanical. Most carbureted vehicles use mechanical fuel pumps operated by the engine's camshaft while fuel injected vehicles utilize electric fuel pumps. New automobile models typically have the fuel pump inside the fuel tank. When the key is turned, current is immediately directed to the pump to ensure constant pressure on the system, which allows for quick starting. Fuel pumps are rated based on pressure and volume output, so when testing fuel pump operation, both variables should be inspected and specifications met.
Fuel injection systems are simpler and more efficient than carburetor systems. Even so, they require repairs or replacement to ensure optimum performance of the vehicle. Most fuel-injection systems today are either throttle-body or multiport. The former is comparable to a carburetor but the amount of fuel is regulated electronically while the latter controls the fuel distribution electronically through one or more fuel rails to every cylinder's fuel injector. Any problem with your vehicle's fuel injection system depends largely on which type is installed. In any case, fuel injection systems are complex. You can opt to make the repair at your own risk. It would be a better idea to call on the experts when dealing with problems concerning fuel systems. They have the expertise and the tools to get the job done within a reasonable time and cost.