3.7. The car is badly dispersed

The knots which malfunction influences dynamics of the car are so located in podkapotny space.

There is a lot of reasons of deterioration of dynamics, it is possible to define the main so.

1. Malfunction of the engine — decrease in a compression in one or several cylinders, подсос additional air to the inlet highway of the engine. Zakoksovyvaniye of system of release or damage of converter of the fulfilled gases.

2. Malfunction of a power supply system — a contamination of nozzles, the fuel filter and hoses of system of supply of fuel. Insufficient giving of a gasoline pump. Application of bad quality fuel.

3. Malfunction of system of ignition — spark plug failure, breakdown of a high-voltage chain of system.

4. Malfunction of a control system of the engine — failure of sensors of system. At failure of any sensor the electronic control unit passes to work on the reserve program, allowing to reach to garage or car-care center, but moshchnostny and economic characteristics of the engine in this case decrease.

5. Coupling pro-slipping owing to wear or adjustment violation.

6. Malfunction of brake system — a pritormazhivaniye of one or several wheels during movement, the wrong adjustment of the parking brake.

7. Insufficient pressure of air in tires.

8. Car overload.

Highly skilled masters with use of the special diagnostic equipment therefore address in car-care center should carry out complete diagnostics of the car.

It is independently possible to carry out the following works.

1. Check and finish to norm pressure of air in tires.

2. Check work of working brake system and the parking brake. To remove wheels for this purpose it is unessential. Find an equal site of the road and to dry windless weather carry out arrival on definition выбега the car. The car should be completely filled, in salon only the driver. Disperse the car to 50 km/h, level speed, and then switch off transfer and move by inertia to a full stop. Make one more arrival in the opposite direction. Выбег should make about 500 m.

3. Check work of system of ignition as it is described above.

4. Check coupling work. Initial check carry out on an equal, free platform from obstacles. A pedal of an accelerator establish the increased frequency of rotation of a cranked shaft in an idling mode — about 1500 ^mines-1. Brake the car the parking brake. Squeeze out coupling and include the I transfer. Then start to release a coupling pedal smoothly. If the engine decays, coupling serviceable and does not slip. If the engine not глохнет, coupling worn-out and demands replacement or adjustment of a drive of switching off.

Note You will find a technique of adjustment of a drive of switching off of coupling in section 4 "Maintenance" (see. «Check and adjustment of a drive of switching off of coupling»).