Faulty fuel pumps
There can be a number of tell-tale signs that a fuel pump may be failing. Some of the obvious symptoms include a loud electrical clicking or whining noise when the engine is running even at idle. If the starter motor performs normally, but the engine is hard to start, especially for the first time of the day, the pump may be struggling to get sufficient fuel to the engine. Experiencing any misfires or sudden decreases in power while driving can be another indication that the fuel pump is not functioning correctly. With most modern cars it doesn’t take much of a change in the air-fuel ratio for any misfire to occur. In more severe cases the engine may cut out when idling at traffic lights, for example. Other symptoms can range from sluggish acceleration to an increase in fuel consumption. Continually driving with low fuel levels can also lead to premature wearing out of the fuel pump. As well as acting as the combustible element in the cylinder of your car’s engine, the fuel also helps to provide lubrication and cooling for the pump itself. Keeping fuel levels lower for extended periods of time can lead to parts of the pump drying out and breaking and/or cause it to overheat and potentially fail.If the fuel pump isn’t working at all don’t just presume that the entire unit is broken. Another reason could be a faulty relay that is causing it not to function correctly. Loose or corroded connections can also be a cause of intermittent or faulty fuel pumps. If the pump isn’t getting the right current flow through a poor grounding or interference, then its operation will be affected, but pinpointing these may not be entirely straightforward.
Fuel system cleaners
Giving your vehicle’s fuel system a thorough clean out can have just as much of a positive impact as servicing the engine. This can be done by adding a fuel system cleaner to your vehicle’s fuel tank and working it through the system. The first thing this formula will do it help clean the inside of the fuel tank itself. Over time it can be common for contaminants to build up, often settling on the bottom of the fuel tank (and is a good reason why you shouldn’t always run your vehicle to empty) and potentially being sucked up by the fuel pump. This can also help remove any build-up of water from the tank. As it makes its way through the fuel system, the fuel lines will also be cleared, and this should result in even amounts of flow to each of the injectors and cylinders. This solution adds extra lubrication to the valves, cylinder, injectors and rings, and any carbon or dirt build-up in the combustion chamber will be softened up and broken down by the cleaning agent. By breaking down this residue, which may have developed over many years, will lead to the engine running more smoothly and should also result in slightly improved fuel economy. If you’ve purchased an older vehicle and you’re unsure of its service history, doing such a service can be beneficial in the long run.
Automotive Fuel Systems
The fuel system of a car is responsible for pumping fuel to the engine where the fuel is ignited. Fuel efficiency has become a hot topic over the last couple of years with the raised gas prices. Keeping your fuel system clean is one good way to optimize your gas mileage. This can be accomplished by always buying quality gasoline, and having your mechanic make sure all of the system’s parts are clean and working properly.