Any time the internal pressurizable portion of the brake system is breached, i.e. bad seals, broken lines, replacing ABS or master cylindar or blown out cylindars at the wheel you must bleed all the air out of the system. A proper bleed requires 2 people. one person operates the bleed screws while the other holds the pedal down. The screw operator is in charge they tell the pedal operator when to push. the pedal must not be released until the bleed screw is closed again or it will **** air back into the line.
to bleed the system you top it off with fluid then
Open a single bleed screw. tell the person to press the pedal and hold it. the bleed screw will sputter with air and fluid forced out. close the screw and then tell the person in the vehicle to release the pedal. repeat this as many times as necessary to get a steady stream of fluid with no air out. close the screw and that line is done move to the next. The bleed screws are located in slightly different spots on different cars but they should all be somewhere near the caliper or cylinder on the back side of each wheel. Obviously you can trace the brake lines to them.
Did you bleed the master cylinder and the brake system after you replaced the master cylinder? If you did, are you losing brake fluid?
319 views
Usually answered in minutes!
×