Comanche 4WD L6-242 4.0L VIN S MFI (1992)
Brake Master Cylinder: Service and Repair
Master Cylinder Replacement
Without ABS
1.
Disconnect and plug lines from master cylinder.
2.
Remove master cylinder to brake booster retaining nuts.
3.
Remove master cylinder from vehicle.
4.
Reverse procedure to install, then bleed brake hydraulic system.
With ABS
1.
Disconnect pedal travel sensor wires.
2.
Remove air cleaner, then clamp securing air cleaner hose to fender apron.
3.
Position suitable container under master cylinder reservoir, then disconnect reservoir hose from HCU and drain fluid into container.
4.
Pump brakes to remove vacuum from booster, then disconnect brake lines from master cylinder.
5.
Remove combination valve from master cylinder if necessary.
6.
Remove master cylinder attaching nuts, then master cylinder.
7.
Reverse procedure to install noting the following:
a.
If installing new master cylinder, bench bleed before installing.
b.
Torque master cylinder attaching nuts to 25 ft. lbs.
c.
Bleed system, refer to Air Bags and Seat Belts/Air Bags (Supplemental Restraint Systems)/Service and Repair.
