Astro Van M L4-151 2.5L (1985)
Hydraulic Brake Booster: Service and Repair
Bleeding Booster
1.
Fill power steering pump until fluid level is at base of pump reservoir neck.
2.
Disconnect 12 volt wire from injection pump or distributor, then crank engine for several seconds. Do not start engine.
3.
Check fluid level, adding as necessary.
4.
Connect 12 volt wire and start engine.
5.
Turn steering wheel from stop to stop, then turn off engine.
6.
Depress brake pedal four or five times to deplete accumulator vacuum.
7.
Check fluid level, adding as necessary.
8.
Start engine, turn steering wheel from stop to stop. Turn engine off, and check fluid level.
9.
If fluid is extremely foamy, stop engine and let vehicle stand for one hour, then check fluid level, adding as necessary.
