GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the fuel tank filler cap.
  2. Remove the protective cover from fuel manager/filter.

  3. 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
  6. Disconnect the sensor wiring connector by pulling straight down.
  7. Remove the water in fuel sensor by turning counter clock wise.

Installation Procedure


    Object Number: 37978  Size: SH
  1. Install the new water in fuel sensor and seal.
  2. Reconnect the sensor connector.
  3. Install protective shield.
  4. Bleed the air from the fuel manager/filter if necessary (Refer to Fuel Supply System Air Bleed .
  5. Install fuel tank filler cap.