Another Mushy Brake Pedal

[Dave]

Hi, guys. Like JDFeniello I'm having brake problems. A rear brake tube rusted out and started leaking. I fixed the line, bled the entire system (got new, clean, air-free brake fluid at all four corners) and have a mushy brake pedal. A burst line will often cause damage to the master cylinder, so I replaced it and the brakes are exactly the same. Thie isn't my first rodeo (not by a long shot) but by no means do I know everythsng......PLEASE speak up if there's something I'm missing. It's a 1992 with RWABS. Is there anything special I have to do in regards to the ABS when bleeding the brakes? There are no leaks and more brake bleeding is just wasting time and brake fluid. Thanks for any help.

Dave

 

[98 ranger xlt]

You need to remove the master cylinder and bench bleed it.

 

[06RangerXLT]

yes if you dont bench bleed a master you will get that. When you blow a line, air travels to the highest point(master) giving you a soft pedal. when you install a new one you have air in the master, still giving you a soft pedal.

 

[Dave]

I did bench bled it. I've replaced quite a few master cylinders over the years. I know how to do it. I even have dealer experience. Even thought it is something other than the master cylinder, I appreciate the replies.

Dave

 

[cr_the_machinist]

Dude, most non-integral ABS systems require a scan tool to bleed. You need to cycle the motor/solenoid packs in order to properly bleed the ABS module. If you don't, you'll have air caught in there that a regular, home garage bleed will never get out.

 

[bobbywalter]

scan tool wont bleed that one

 

[cr_the_machinist]

Thats a pickle then....