E 350 Van V8-7.3L DSL Turbo VIN F (1995)
Vacuum Pump: Testing and Inspection
A-4 Vacuum System Check
^ Reconnect the vacum gauge hose with a T-fitting and connect vacuum gauge so gauge is located near pump inlet.
^ Run engine at curb idle speed. The maximum allowable vacuum drop to be 10kPa (3 inches hg) from the specified level of vacuum described in
step A2, vacuum pump outlet Test. See: A-2 Vacuum Pump Output
Vacuum Check
^ Is vacuum at or above specified level?
YES -- Go to A5. See: A-5 Brake Booster Check
NO -- Go to A6. See: A-6 Leak Check
