Check for a vacuum leak
Check the check valve on the power brake booster
The power brake booster is leaking vacuum and that makes the engine die when the brakes are applied. Replace brake booster.
Allow the engine to idle for one minute, and press the brakes. Keep the engine running and absorb the temperature of the fluid.
YES BUT NOT FOR LONG- THEY WOULD WORK ON RESERVE VACUUM 3-4 PEDAL PRESS
when you're in gear, the engine tries to move the wheels and the brakes hold it still. this suppression from the brakes, combined with frictional losses through the drivetrain, lower the engine RPM's. When in park, the car's wheels aren't being driven therefore you don't need to press the brakes. tjhis lessens the load on the engine dramatically and therefore, engine RPM's rise
If you mean when you are coming to a stop, and press on the brakes, you feel a vibration- this most likely means that your brake rotors are warped and need to be turned. If you mean you are already at a full stop, in idle, and you press the brake and feel a vibration- it may mean a vacuum problem in the engine or something like that. So it depends- is it your brakes vibrating, you feel it in the pedal? Or is it your engine suddenly running rough and the whole front end of the car shakes?
press the brakes and then press the start/stop button
To start the Volvo S40 with a keyless remote, first ensure the key fob is inside the vehicle. Press the brake pedal and then press the start/stop button, usually located on the dashboard. The engine will start, and you can release the brake once the engine is running. If the vehicle does not start, check the key fob battery or ensure it's properly recognized by the ignition system.
you should gently press the brake pedal and gently press the gas pedal, the increase friction will dry the brakes.....
i ment that if the sensor in the dash stays on after i press the brakes and dosent go off till i turn the car back on and dont press the brakes?
Press brakes with firm, hard pressure.
Press brakes with firm, hard pressure.
Perhaps a vacuum leak, Check all hoses