GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Savana 🢒 Engine 🢒 Engine Controls - 6.5L 🢒 Water in Fuel Indicator Sensor Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the fuel tank filler cap.
  3. Remove the protective shield from fuel manager/filter.

    4. Object Number: 63084 Size: SH
  4. Open the air bleed valve on top of the fuel manager/filter in order to release any pressure in the fuel supply system.

    5. Object Number: 64302 Size: SH
  5. Disconnect the sensor wiring connector by pulling straight down.
  6. Remove the water-in-fuel sensor by turning counterclockwise.

Installation Procedure

    Object Number: 37978 Size: SH
  1. Install the new water-in-fuel sensor (7) and seal.
  2. Reconnect the sensor connector.
  3. Install the protective shield.
  4. Bleed the air from the fuel manager/filter if necessary.
  5. Install fuel tank filler cap.
  6. Lower the vehicle.