Altima SE L4-2.4L (KA24DE) (1997)
Vacuum Brake Booster Check Valve: Testing and Inspection
INSPECTION
Hoses And Connectors
Check vacuum lines, connections and check valve for airtightness, improper attachment, chafing or deterioration.
Testing Check Valve
1. Check vacuum with a vacuum pump.
a. Connect to booster side. Vacuum should exist.
b. Connect to engine side. Vacuum should not exist.