Welcome to the next part of our series on car malfunctions that your ears can detect. The previous article on diagnosing malfunctions by hearing focused on the car exhaust system.

In today's article, we will look at another part of the car: the car's chassis and brake system.

In today's article, we will examine how various braking system malfunctions manifest themselves and how they can be eliminated. The braking system is the most important part of the car in terms of safety.

This system has a decisive impact on driving safety, as it serves to stop, slow down the car, or secure it while the car is parked.

A seized engine is one of the most serious, if not the most serious, and costly malfunctions that may affect your car's engine.

There are two main causes of a seized engine: a lack of engine oil, which causes insufficient lubrication of moving parts, or an insufficient amount of coolant, which causes the engine to overheat.

There are malfunctions that even an experienced motorist cannot detect without equipment. However, such malfunctions can also be detected in time without any equipment.

You will simply need only your senses, or more precisely, one which is your hearing.

The mass flow sensor measures the air that flows through the intake manifold into the combustion engine. It can usually be found in the intake manifold, behind the air filter, and in front of the throttle valve.

If the sensor measures the air pressure in the intake manifold, it is denoted by the abbreviation MAP - Manifold Air Pressure. On the other hand, if it measures the mass of the consumed air, it is denoted by the abbreviation MAF - Mass Air Flow.

The throttle valve controls the air supply to the engine. It is used by gasoline engines but also by some modern diesel engines. The throttle valve is located in the intake system and is mechanically or electronically connected to the gas pedal.

When the gas pedal is pressed, the throttle valve opens. In the case of a mechanical control system, the damper reacts immediately. In contrast, the electronic control is the responsibility of the ECU (Engine Control Unit), which controls the throttle valve based on the position of the gas pedal.