Section 06-07B: Brake, Power, Vacuum Pump, 7.3L Diesel Engine
1996 F-250, F-350 and F-Super Duty Workshop Manual
REMOVAL AND INSTALLATION

Switch, Low Vacuum Indicator

Removal

  1. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control module (PCM) (12A650) relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.

    Disconnect the battery ground cable (14301).

  1. Disconnect the electrical connector from the low vacuum indicator switch.



    Low Vacuum Indicator Switch





    ItemPart NumberDescription
    12A451Vacuum Pump
    2382984-S100Clamp
    39C490Vacuum Outlet Manifold
    412A182Low Vacuum Indicator Switch
    5382984-S100Clamp
    6381377-S080AVacuum Tube
    7381298-SX11AVacuum Pump-to-Vacuum Outlet Manifold Hose
    8381298-SX16AVacuum Pump-to-Vacuum Outlet Manifold Hose
    99K319Evaporative Emission Hose Connector
    1019C827Vacuum Hose Harness
    11Climate Control Line Port (Part of 9C490)
    12Low Vacuum Indicator Switch Port (Part of 9C490)
    13To Power Brake Booster
    AWhite End Points Towards Front of Vehicle
  1. Disconnect the low vacuum indicator switch-to-vacuum outlet manifold assembly hose.

  1. Remove the two low vacuum indicator switch nuts and the switch.

Installation

  1. Follow removal procedures in reverse order.

  1. Tighten the low vacuum indicator switch manifold nuts to 5.2-7.2 Nm (46-63 lb-in).