Recent models of cars rely on computerised systems to regulate how different vehicle components, such as the engine, work. However, a problem in one of the inputs, such as diesel, can affect the smooth operation of the vehicle to the extent that its fuel economy will suffer or the vehicle will break down. This article discusses some of the signs that may alert you that the diesel in your vehicle has a problem.
Black smoke may be emitted from the exhaust pipe of your vehicle if something is wrong with the diesel in your car. For instance, sludge from the bottom of the fuel tank may have been sucked into the engine due to a defective fuel filter. That sludge is usually composed of heavy particles that cannot be burnt during the combustion process within the engine. Consequently, the incomplete combustion of the constituents of the diesel in your car will cause black smoke to emerge from the exhaust pipe.
However, you should also remember that other factors could cause black smoke to be emitted from your diesel vehicle. For instance, a clogged air filter may be unable to deliver sufficient oxygen to the engine. It will therefore be hard for the diesel to be burnt if not enough air is available to mix with the clean fuel in the engine.
A diesel engine may stall as you drive if the diesel is contaminated. For instance, water may enter the engine. That water will prevent the fuel/air mixture from burning inside the combustion chamber. The engine will then stall because it has no power to keep moving. However, the engine may also stall because clogs in the fuel filter have stopped diesel from reaching the engine of your car.
Try removing the fuel filter from your car in case you suspect that the fuel may have a problem that is causing your vehicle to lose power. Observe and smell the fuel that drips from the filter. Normal fuel is usually clear and smells like a solvent. Contaminated fuel is usually cloudy in appearance, especially if it was contaminated by water. Microbes can cause that diesel to have an unusual smell, such as the smell of a mould growth. Degraded fuel darkens in colour. Diagnose the problem based on your observation and rectify that problem accordingly. For instance, have all the fuel drained out in case you find that it is cloudy.
As you can see from the discussion above, different factors can cause the symptoms that can manifest when the diesel in your car has a problem. It is therefore prudent for you to ask a diesel service professional to check the vehicle so that an appropriate diagnosis and solution is found.