OEM Cadillac SRX Brake Master Cylinder

Cadillac SRX Brake Master Cylinder Parts and Q&A

• Master Cylinder
  19209229
  Q: How to overhaul the brake master cylinder on Cadillac SRX?

  A:

  Start Brake Master Cylinder overhaul by taking off the part while securing the mounting flange to a bench vise with easy access to the rear of the primary Piston. Before taking off the cap from the reservoir clean the exposed area outside of the master cylinder then check for damage like cuts and bends during and replace broken parts. Take the master cylinder reservoir away and press the primary Piston with a smooth rounded tool. Once the Piston retainer and primary Piston assembly are removed from the cylinder bore continue with the process. Insert air into the cylinder front port with a low pressure filter through a non-lubricated system to pull out the secondary seal combined with the secondary Piston and primary seal. You should discard all primary Piston unit items including Piston retainer and seals from the secondary Piston. Use denatured alcohol to cleanse all parts of the master cylinder system including the secondary Piston and return spring. Be sure to steer clear of abrasive materials during cleaning. Check the master cylinder bore and ports along with the secondary Piston and return spring for damage then replace it if needed. Apply non-lubricated filtered air to dry all pieces before placing delco supreme ii brake fluid from part 12377967 into the master cylinder bore, secondary Piston assembly, return spring and all components. Install the lubricated new primary seal and retainer with the secondary seal onto the twisted Piston next put in the lubricated return spring and secondary Piston assembly into the cylinder bore before adding the new primary Piston with lubricant. Depress the primary Piston gently with a smooth rounded tool while fitting the Piston retainer in place. Install the master cylinder reservoir with its cap and diaphragm and put the master cylinder back into the vehicle.
• Master Cylinder
  10367561
  Q: How to replace the brake master cylinder on Cadillac SRX?

  A:

  Start by disconnecting the power and brake pipes from the master cylinder. Then pin the brake hose ends with a rubber cap or plug before you proceed. Transfer the air inlet bracket by removing its push nut from the master cylinder stud then turning it away from the installation stud. Disconnect the 2 master cylinder mounting nuts and pull off the master cylinder part. Take the reservoir off the master cylinder when you will reuse it. Replace the master cylinder with its reservoir afterward before you perform a bench bleed process. Join the master cylinder to the vacuum Brake Booster before tightening its 2 mounting nuts to 25 n.m (18 lb ft). Put the air inlet panel support bracket in place on the mounting stud and fasten it with the supplied push nut. Install brake pipes to the master cylinder ports and fasten fittings with 38 n.m (28 lb ft) torque. Reconnecting the electrical wire to the brake fluid sensor and going through the brake system bleeding process will complete the repair.