Brake Problem

[kshack11]

I have a 98 ranger. i was just driving one day and my brakes gave out, the pedal went all the way to the floor. I had barely any pressure at all. so far I have replaced the master cylinder, brake fluid and the power brake booster. still nothing. so i bleed all the lines and my brake are the same. i really need help on this one. i just cant figure it out. also my brake warning light is on now.

 

[Boghog1]

you have to have either a leak or air in the lines somewhere

 

[robertc1024]

Did you bench-bleed the master cylinder?

 

[adsm08]

Did you check for leaks? I hate to jump to the conclusion that you skipped right past the obvious, but it's not in the list of things you did, so I gotta ask. Oh, and a bad booster will NEVER make the pedal drop to the floor without applying the brakes all the time.

 

[crusin93]

You have a pin hole in one of the hard lines running from your master to each wheel. Fill the master and pump the brake pedal repeadly. Then follow the lines unitl you see brake fluid leaking out. A friend is helpful while doing this. Cut out the cancer and replace with a new section. Bleed the system and your done.

 

[robertc1024]

If you have to replace flex lines (or any lines for that matter) I would HIGHLY recommend buying good fitting wrenches if you don't have them. I replaced both front brake lines on my Ranger and they were tight as Sh!^. Almost rounded off the mating hard line fittings.