Defective symptoms of the sound sensor + mechanical solutions

• On the flywheel
• Inside the cylinder block on the engine tree (especially in Ford and Opel)
• On the engine tree from the front of the engine compartment, together with the actuators for additional units (in Jaguar, BMV, Vaz and others)

2. Defective tree speed sensor: causes

In order to observe the main causes and the methods of resolving a defective turning point speed sensor, see the following table:

The rotation sensor of the engine rarely fails, which is why a car owner will not be able to diagnose a failure. Some do not know where the sensor itself is. Therefore, it is advisable to carry out an annual technical inspection, in a service in which you trust.

2.1. Symptoms of the defective speed sensor

If the motor rail rotation sensor is defective, the car can have the following symptoms:

• The engine does not start when it is cold and, most of the time, it does not overheat;
• High speed in the ranks: this is the most common feature of a defective speed sensor;
• A significant reduction in the power of the engine and the deterioration of the response to the acceleration flap;
• Detona occurs during operation under load and during the same;
• When acceleration is pressed, marmalad, diving and jagging appear;
• There is a mobile speed in the ranks;
• When you change speed, the engine stops spontaneously;
• The power of the engine decreases, the dynamic disappears;
• It is possible to overheat the engine;
• number RPM (rotations per minute) jumps during the leadership, so that the arc of rpm changes arbitrarily.

The most common symptoms claimed by the drivers of service mechanics are:

OR High speeds

OR The inability to curb the engine

OR It shakes while the release of the accelerator pedal

OR Decrease in engine power

OR Increase fuel consumption

It should be known that these symptoms also occur in other defects in the engine system. For this reason, before starting the interventions, other possible defects should be excluded.

It should be noted that the defects of the speed sensor of the turning point may not constantly occur. In other words, there are situations in which the ON -Board witness is the aprons, but the car seems to work only well, without any problem. In this situation, it is recommended to make the diagnosis of the IT engine to determine the exact cause.

2.2. Cars frequently diagnosed a defective speed sensor

According to statistics made in automotive services, the most common cars that have problems with the speed sensor are as follows:

Compact machine category:

or Fiat Punto

or Skoda Felicia

or Renault Clio Si Twingo

or Seat Ibiza, Cordoba seat

or Suzuki Swift

For the «Golf» class:

or Fiat Bravo, Fiat Mare

or Renault Megane, panoramic

or Ford Escort

or Peugeot 306

Business Class

or Renault Laguna

or Citroen xantia

or Opel vectra

or Volvo S40/V40

or Peugeot 406

or Ford Mondeo

3. What is the clean speed sensor?

As I said before, the rotation sensor of the elbow tree can only be cleaned if misery is the cause of its dysfunction. Often the sensor activity can only be improved due to its cleaning.

For this procedure you need WD-40 or a solution to clean electric installations or carburettor. The composition is applied to a normal iconic bat with cotton swab at the end (chisel).

After disconnecting the wiring from the sensor, try to carefully eliminate the pins and the wiring. To obtain results in cleaning the ensemble, you will have to remove the sensor from the chair and clean with a WD-40 jet or another product indicated for this ontestion.

Don’t forget to dry the sensor later. So everything is installed in the position and verified for the operation.

In the event that it does not get the desired results, it is better to resort to a reliable automotive service, to make sure that your car is on good hands and can take many kilometers safe.