GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1334872  Size: SH
  1. Drain the fuel from the fuel filter. Refer to Water-in-Fuel Draining .
  2. Reposition the fuel hose clamps.
  3. Remove the fuel hoses.

  4. Object Number: 1334874  Size: SH
  5. Disconnect the fuel filter connectors.
  6. Unscrew the fuel filter from the fuel filter adapter.
  7. Remove the water-in-fuel sensor from the fuel filter.

Installation Procedure


    Object Number: 1334874  Size: SH
  1. Install the water-in-fuel sensor to the NEW fuel filter and tighten 1/2 turn after the seal contacts the filter.
  2. Important: Inspect the fuel heater element housing for contamination. Contamination on the fuel heater element housing may cause leakage at the fuel filter. Coat the fuel filter seal with clean engine oil.

  3. Install on the NEW fuel filter to the fuel filter adapter and tighten 1/4 turn after the seal contacts the filter adapter.
  4. Connect the fuel filter connectors.

  5. Object Number: 1334872  Size: SH
  6. Install the fuel hoses.
  7. Position the fuel hose clamps.
  8. Prime the fuel system. Refer to Fuel System Priming .
  9. Start the engine. If the engine stalls, repeat the above step.
  10. Once the engine starts, inspect for fuel leaks.

Fuel Filter Life Reset

This message will appear when a reset is performed either by using the steering wheel controls or following manual procedure.

  1. Reset the fuel filter monitor.
  2. For vehicles with steering wheel controls, press and hold the select button for 5 seconds while the FUEL FILTER LIFE message is displayed.
  3. This message will appear on the driver information center (DIC) for ten seconds.

  4. For vehicles without steering wheel controls, do the following:
  5. 3.1. Without pressing the pedals, turn the ignition key to the ON position without starting the engine.
    3.2. Wait 5 seconds.
    3.3. Completely press the brake and the accelerator pedals simultaneously and hold for 10 seconds. The system is now reset.
    3.4. Turn the ignition key OFF.
  6. The next time the engine is started, the message will no longer be displayed.
  7. ALWAYS reset the FUEL FILTER LIFE system after a fuel filter change.