Oasis LS L4-2156cc 2.2L SOHC MFI F22B6 (1997)
Vacuum Brake Booster Check Valve: Testing and Inspection
Vacuum Hose And Bracket
BOOSTER CHECK VALVE TEST
-
Disconnect the brake booster vacuum hose at the booster or at the booster side of the valve.
-
Start the engine and let it idle. There should be vacuum. If no vacuum is available, the check valve is not working properly. Replace the check
valve and retest.