foxrider4lyfe

ok so my brake light is on and my peddle is really soft.so i just bled the brakes and its still soft and the brake light is now coming off and on...did i bleed the system wrong? dont you open valve and push pedal down then tighten valve and release pedal??
could it also be my brake booster failing keep in mind in has over 300,000 miles
any help please
thanks

caged

did you do anything else, like change the pads or calipers or anything?

booster could be bad, but will usually leak internally. did you start your bleed at the furthest wheel (passenger rear)?

foxrider4lyfe

pads and shoes werent done to long ago but the pads might be bad again ill double check but i started at the back and accidentally did front driver instead of passenger but then went back and re-bled them its just odd...

caged

check your flex lines for any soft spots too that may bulge under pressure.

foxrider4lyfe

okayy thanks im leaving for work now but will check later,hopefully its just something minor

SpooledupRacing

my guess is a soft hose going bad or master/booster

Jamie57

You may need to have them pressure bled. There is a check ball in the proportioning valve that limits the amount of pressure going to the front and rear brakes. It sometimes moves when you incorectly bleed the brakes.
Almost 70% of braking is done by the front brakes so you do not want the exact same pressure going to the rears or they would lock up every time you tried to stop.

foxrider4lyfe

okay thanks i checked the lines they were all good i rebled them and still soft would worn pads and rotors cause soft pedal?and if master or booster how can i check them,also where could i go to get the pressure bleeding

radio flyer

Leaking diaphragm in booster would tend to make pedal hard , bad master would cause soft pedal.

foxrider4lyfe

well this weekend ill do the rotor and pads and if still bad ill do master
thanks guys

acfene

did u figure this out?..im havin the same problem

foxrider4lyfe

no not yet ive been busy at work and now have to pay vet bills, i think its the master on mine but i have a spare so hopefully i can have it swapped in sunday...If you figure yours out please let me know what worked for you
thanks

Stan6406

Are you pumping the brakes before you hold them? you shoudnt be moving the brake pedal when the bleeder is open
If you dont have a bleeder system youneed to pump them
2 person operation
pump the brakes 4-5 time until you get a pedal
hold it
loosen bleeder
pedal should go to the floor
retighten bleeder
release brake
check pedal again
check your fluid
start with the wheel furthest away from the master cylinder

Molon Labe

I do it the way stan said to do it.

4.3L XJ

Soft pedal is the master cylinder. Better change it before you start having to pump it to get brakes.