At failure of the vacuum amplifier the effort to brake pedals considerably increases that negatively affects driving.

If the effort to pedals when braking considerably increased in comparison with usual, check the amplifier of brakes on the motionless car.

It will be required to you: the screw-driver with a flat edge, a rubber pear.

1. At the idle engine press five-six times a brake pedal. Holding a brake pedal in the pressed situation, launch the engine. The pedal of a brake has to move forward. If it did not occur, check...	2.... density of landing of a vacuum hose in an inlet pipe...

3.... and vacuum amplifier.

4. For check of operation of the backpressure valve remove the shelf of the rechargeable battery (see. "Removal and installation of the rechargeable battery").

5. Take the union of a vacuum hose from an opening of the sealing plug of the vacuum amplifier of brakes …	6. … bring a hose of the vacuum amplifier out of an arm on a back wall of a tank of the main brake cylinder …

7. … also take away a hose.	8. Densely insert a pear nose into that end of a vacuum hose by which the hose was connected to the vacuum amplifier, and squeeze it. Air has to come out a pear via the valve.

9. Release a pear. If it remained in the compressed state, so the valve is serviceable. In the absence of a pear it is possible to blow the valve a mouth.

10. If the backpressure valve passes air in both directions, replace a vacuum hose assembled with the valve for what …

11. … take the union of a vacuum hose from an opening of an inlet pipe and remove a vacuum hose assembled with the backpressure valve.

12. Establish details as it should be, the return to removal.