bleeding brakes on rover 216 s reg, break pedal solid untill engine starts then goes to floor why ???

Question

RELACED SERVO AND RESEVURE NEW DISKS AND PADS NO LEAKS ANYWHERE HELP

Answer 1

you need vacum for these brakes bleed them with the engine running when the engine is not running there is no vacum which makes your pedal tight you are pushing more air than fluid with the engine running you are pushing fluid not air

Answer 2

Does the vehicle have power brakes? If it does, check the booster. If it is new it could be defective, if it hasn't been replaced, it probably is defective. Check the check valve on the side of the booster. If it is cracked ro broken it's letting the booster loose all it's vacuum when you push on the brake pedal. Some check valves have multiple ports and one could be uncapped. From every car I've ever looked at, the only time the problem has occurs that you are describing is when the power brake booster has had a problem.

Answer 3

attempt the booster,with engine not working pump up the brakes.it is going to get hard after the 2d or 0.33 pump.with out combating push hard on pedal and on the same time as nevertheless pushing on pedal start up engine.Pedal could desire to pass down with rigidity.i think of you could desire to bleed the brakes extra.if that doesn't therapy the subject then your grasp cyllinder maybe the subject.

Answer 4

sounds like the seals in the master cylinder have gone and the fluid is bypassing them and the pedal goes to the floor.

Answer 5

Because its servo assisted... you must bleed with the engine running...

Answer 6

Try bleeding with engine running.

Answer 7

if you have power brakes the booster is bad and maybe the master cylinder. if no power brakes then the master cylinder is bad

Answer 8

Check the pressure and the hoses