Master Cylinder Bleeding (On-Vehicle)

Using a line wrench, remove front brakeline and master cylinder outlet rear brakeline from master cylinder. Install short tubes in master cylinder and position them so they curve into master cylinder reservoir, and ends of tubes are submerged in brake fluid.
Fill master cylinder reservoir with new brake fluid. Have an assistant pump brakes until clear, bubble-free fluid flows from both brake tubes. Remove short brake tubes and reinstall front brakeline and master cylinder inlet rear line on master cylinder. Bleed each brakeline at master cylinder by having and assistant pump brake pedal 10 times and then hold firm pressure on brake pedal.
Loosen rearmost brakeline fittings until a stream of brake fluid comes out. Have an assistant maintain pressure on brake pedal until brakeline fitting is tightened again. Repeat procedure until clear, bubble-free fluid comes out from around fitting. Refill master cylinder reservoir as necessary. Repeat this bleeding operation at front brakeline fittings.