Why is my brake pedal high?
Vacuum – or really lack of vacuum pressure – is the most common cause of a hard brake pedal, and therefore the first thing to look at when a hard pedal is present. Any brake booster (whether from Master Power or any other supplier) needs a vacuum source to operate. When this happens, the pedal gets harder.
How much travel should a brake pedal have?
The brakes should be applied with a moderate force. Make sure there is room between the floorboard and the brake pedal. There should be at least 2 inches of travel before the brake pedal hits the floor, but not all manufacturers specify a pedal reserve distance.
Why must a brake pedal have free play?
Free play is critical on all braking systems in order to keep the Vent Port open inside the master cylinder. With the vent port blocked, the brakes will apply with more pressure, causing more heat and pressure. The driver may feel the brake pedal getting harder to apply or notice the vehicle seems to lack power.
What happens if your brake pedal is too high?
If the brake pedal is set too high or too low, your ability to stop your car may be compromised. Stopping your car too late, or too soon, can result in an accident and serious injury.
How to diagnose hard brake pedal master power brakes?
A) With the engine not running, press and depress the brake pedal several times to remove any vacuum from inside the booster. B) On the last push of the brake pedal, hold moderate pressure on the brake pedal. Don’t push like you are panic stopping, but simply hold pressure like you are sitting at a red light.
Where does the brake pedal start on a car?
Place a drain pan under the right rear wheel. The general rule is to start at the brake farthest from the master cylinder (right rear), and then work your way closer, ending with the left front. Open the bleed valve about a half turn, and have your partner depress the brake pedal.
Why do I have soft brake pedal on my car?
The most common reason for a soft brake pedal is simply air still in the system. The easiest way to diagnose this problem is to pump the brake pedal gently a few times. In doing so, the pedal should become firmer with each gentle press of the pedal. If it does, then the obvious approach of bleeding the brakes must commence.