So I got a Taurus in today with a pretty good leak from the rear piston seal of the master cylinder and since this is pretty common on the Taurus I decided to show the bench bleed procedure you have to do before putting a new master on. Take a look under the master cylinder on the brake booster and you will likely see brake fluid seepage and bubbling paint. The customer chose Dorman for a replacement over OEM and it actually came with the bleeder kit in the box! Just an FYI I am sure it will help someone.

 

thank you for your post and vid. not everybody knows how to bench bleed a master cylinder. keep in mind that not every master cylinder comes with the kit to bench bleed. so keep that kit handy for the next time you have to do one

 

Oh yeah I keep them all, you never know when you can use one.