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Fuel System

Photo of La Palma Mobile Mechanic making a service call to Cerritos, CA, and replacing the car's fuel injectors.

Lap Palma mobile mechanic service team members have wide-ranging experience on all the components of a vehicle’s fuel system. A vehicle’s fuel system is designed to get the fuel from its storage location, the fuel tank, to its final destination, the cylinder. The cylinder is where the ignition from the spark plug creates the explosion that powers your engine. The fuel system is comprised of several components that make that process happen smoothly. Those include the fuel tank, fuel pump, fuel lines, fuel filter, fuel injectors, or the carburetor. When there is a problem with any of those subcomponents fuel can’t reach the cylinder and your car won’t run properly. You’ll often get a warning either in the form of a warning light on your dashboard or sometimes it’s just the driver noticing that the car is not running properly. Vehicle owners should have the components of the fuel system checked out during routine maintenance checks.

The components of a vehicle's fuel system are:

Fuel Tank

Fuel tank: The fuel tank is where the fuel for the vehicle is stored. Some later model vehicles have emission control devices as well as the fuel pump located inside the tank. On some vehicles, access to the fuel pump can be difficult. That can make the repair or replacement of the fuel pump a time-consuming job.

Fuel Pump

Fuel pump: The fuel pump move the fuel to the fuel injectors or the carburetor. In addition to fuel pumps being located inside the fuel tank, some auto's fuel pumps are attached to the engine and can be powered by some of the internal engine parts.

Fuel Lines

Fuel lines: The fuel lines are merely tubes where the fuel travels from the fuel tank to the carburetor or fuel injectors.

Fuel Filter

Fuel filter: Internal combustion engines need clean fuel, free of any contaminants, to be able to operate at the highest efficiency. Fuel filters block dirt, debris, and contaminants that might be mixed in with the fuel. A clogged fuel filter will starve an engine of fuel and make the engine not run properly. It’s always a good idea to replace your fuel filter when conducting routine maintenance.

Fuel Injectors

Fuel injectors: The fuel injectors in late-model vehicles are computer-controlled. They inject a tiny amount of fuel directly into the internal combustion chamber. The fuel spray at the injector is metered by a valve and electric sensors that control the amount so that your car's engine runs properly. The computer that controls the metered fuel delivery is very sophisticated and can account for environmental factors like temperature, humidity, and barometric pressure so that your car or truck will run right even at various altitudes.


Carburetor: Carburetors work by mixing the fuel with air that is sucked into the cylinders by way of an intake manifold through vacuum pressure. Most newer vehicles utilize computer-controlled fuel-injected systems.

No matter the fuel system related issue you may be experiencing, La Palma Mobile Mechanic can help you to identify it and then get it corrected so that your travels will be pleasant and so you won't be worried about possible break-downs. Give us a call with any fuel system problem or if you think your vehicle problem is from the electrical system or if you're in need of other engine repairs.