Aerostar 2WD V6-182 3.0L (1995)
Vacuum Brake Booster Check Valve: Testing and Inspection
NOTE: This test should only be performed after the brake booster and its vacuum system has been checked and found to be functioning properly. See:
Vacuum Brake Booster/Testing and Inspection
1. To test the functioning of the power brake booster check valve:
a. Start and run the engine for at least 10 seconds.
b. Operate the brake pedal to check for power assist.
c. Disconnect the vacuum booster hose from the power brake booster.
d. There should be enough vacuum retained in the power brake booster for at least one more power-assisted brake operation.
