OEM Chevrolet Equinox Brake Master Cylinder

Chevrolet Equinox Brake Master Cylinder Parts and Q&A

• Master Cylinder
  15892508
  Q: How to service and repair the Brake Master Cylinder on Chevrolet Equinox?

  A:

  Start Brake Master Cylinder service by fixing the mounting flange in a vise and making the primary Piston rear end accessible for work. Place appropriate fittings on the master cylinder ports to match the necessary flare seat and connect hose ends into the ports. Fit transparent hoses to the fittings and put them into the reservoir tank so their ends touch gm approved brake fluid or its equivalent. Depress a smooth rounded tool against the primary Piston for 25mm (1 inch) several times to watch fluid flow from the ports. Air bleeding will make Piston travel harder and shorter. Bleed with the tool repeatedly until the master cylinder ports spit liquid without trapped air. Insert the cap securely onto the hose nipple once you take off the transparent hoses from the reservoir to prevent brake fluid loss. Take off the devices with their hoses from the master cylinder ports and place the master cylinder in a clean napkin before extracting the device from the working bench.
• Master Cylinder
  19151463
  Q: How to replace the brake master cylinder on Chevrolet Equinox?

  A:

  The Brake Master Cylinder replacement starts by removing the underhood electrical center bracket and disconnecting the electrical connector attached to the brake fluid level indicator switch. Before moving forward with the brake pipe removal from the master cylinder find a rubber cap or plug to seal exposed brake pipe fittings against fluid escape and debris entry. Start by installing plugs on open brake pipe ends before you remove the master cylinder mounting nuts to extract the master cylinder with all brake fluid drained from the reservoir. Bench bleeding is required before the master cylinder installation onto the Brake Booster. Then install mounting nuts on the master cylinder and tighten them to 25 n.m (18 lb ft). Connect the brake pipe fittings to the master cylinder while tightening them to 18 n.m (13 lb ft). After reconnecting the electrical cable on the brake fluid level indicator switch owners should install the underhood electrical bracket. Bleed the hydraulic brake system as the last step.