DeVille V8-4.6L VIN Y (1998)
Brake Master Cylinder: Service and Repair
Master Cylinder Replacement
REMOVAL PROCEDURE
1. Remove the brake fluid from the master cylinder. Use a syringe to remove as much fluid as possible.
2. Dispose of the brake fluid. Do not reuse.
3. Reinstall the reservoir cap with the diaphragm.
4. Disconnect the electrical connector from the fluid level sensor switch.
5. Remove the tube nuts.
6. Remove the hydraulic lines.
7. Plug the open hydraulic lines to prevent fluid loss and contamination.
8. Remove the two attaching nuts.
9. Pinch off the rubber hose as close to the reservoir nozzle as possible. Use a pair of clamp-type pliers to prevent fluid loss.
Do not damage the rubber hose or the reservoir nozzle.
CAUTION: Use shop cloths to prevent any brake fluid that may leak from master cylinder or rubber hose from contacting vehicle body or
electrical connections.
10. Move the master cylinder forward off of the booster studs and the lower flange end of the master cylinder. This will cause the reservoir nozzle to
point up.
11. Remove the hose clamp.
12. Remove rubber hose from the reservoir nozzle.
13. Remove master cylinder.
INSTALLATION PROCEDURE
