OEM 2002 Cadillac Seville Brake Master Cylinder

2002 Cadillac Seville Brake Master Cylinder Parts Questions & Experts Answers

• Q: How to service and repair the Brake Master Cylinder on 2002 Cadillac Seville?

  A: Start Brake Master Cylinder service and repair work by placing the mounting flange in a vise to access the rear of the primary Piston. Mount two suitable fittings matching the required flare seat directly to the master cylinder ports before adding transparent hoses which reach the reservoir. The preferred fittings need transparent tubing installation which then leads hoses directly into the master cylinder reservoir space. The diaphragm-free reservoir must reach a minimum fill level of delco supreme ii brake fluid gm p/n 12377967 (Canadian P/N 992667) or equivalent dot-3 fluid from a new sealed container with the hose ends resting completely inside fluid volume. To check fluid flow from the ports you should use a smooth rounded tool to repeatedly push and release the primary Piston to 25 mm depth (1 inch). While bleeding air from the primary and secondary pistons depressions become harder to make while the primary Piston receives shorter travel distances. The technician must keep performing this step until fluid streams out without forming bubbles through the ports. You should finish the process by taking off the transparent hoses from the reservoir before you put back the master cylinder reservoir cap and diaphragm, then remove the fittings that are attached to the hoses from the ports while using a clean shop cloth to wrap the master cylinder to stop spills. Take the master cylinder off the vise when you finish.