Brake Vacuum Hose

Vacuum line can be used in different systems of the vehicle, for instance, in the turbocharger or the central locking. Vacuum line is also necessary for brake booster, which works as a rule in cars with negative pressure. Negative pressure that is needed for brake booster is generated in diesel and petrol engines trough the vacuum pump direct injection. In traditional gasoline engines the required negative pressure starts in the intake manifold behind the throttle valve. 

Vacuum line must be constructed to be able to withstand the respective negative pressure without losing its shape. In most cases a thick rubber tube is enough. When a high vacuum is created, an additional reinforcement is incorporated, for example fibre glass or steel. Vacuum line defect usually is the result of a faulty sealing. Therefore, the system malfunctions or fails. As a rule, it makes sense to replace a faulty vacuum line. All the gaskets should be replaced. Safety-critical systems, like brake system must be repaired in the repair shops. 

A new vacuum line is relatively cheap. However, it is necessary to make sure that the line fits the specific vehicle. It is not recommended to install an improper vacuum line, just because the connectors fit. Thus you can disturb the whole system. In any case, if you need a high quality spare car part, you will easily find it in our online store of car parts. Do you need any car part? In out online shop you can find throttle sensor, injection valve, pendulum support, wishbone, bellow, camshaft and oil cooler. If you need spare car part for your car, our online shop is the right choice.

HOW TO DETECT MALFUNCTION OF VACUUM BRAKE BOOSTER

It is possible to check if the part works correctly without the experts’ help. For this, you need to start the engine and push the brake pedal 5-7 times listening to sounds. If air produces a soft noise, it means that the brake booster is depressurized.

Start the engine after bleeding air from the braking system. At switching on the ignition, the brake pedal must lift by 1-2 centimeters. If its position does not change, it is recommended to contact a service station for the more detailed check.

After that, perform one more experiment. You should push the brake pedal as far as it goes while the engine is working, after that shut it down and continue holding the pedal pressed for 1-2 minutes. If air ducts are damaged and the system is depressurized, then the back pressure in the pedal will sufficiently increase and you will need to apply more effort for pushing it.