GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Geo 🢒 1997 🢒 Tracker - 2WD 🢒 Engine 🢒 Engine Controls - 1.6L 🢒 Fuel System Cleaning

Important: 

   • If a fuel system problem is caused by contaminated fuel or other foreign material in the fuel tank, the tank must be cleaned. If the tank is rusted or is still contaminated after cleaning, the tank must be replaced.
   • Only use oil free compressed air to blow out the fuel pipes.
   • Inspect the fuel tank internally and clean the fuel tank if the you find a plugged fuel filter.

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Remove the fuel tank from the vehicle. Refer to Fuel Tank Replacement .
  3. Remove the fuel level sensor from the fuel tank. Refer to Fuel Level Sensor Replacement .
  4. Remove the fuel pump from fuel tank. Refer to Fuel Pump Replacement .
  5. Remove the fuel tank pressure sensor from the fuel tank. Refer to Fuel Tank Pressure Sensor Replacement .

    6. Important: When flushing the fuel tank, handle the fuel and water mixture as a hazardous material. Handle the fuel and water mixture in accordance with all applicable local, state, and federal laws and regulations.

  6. Fill the fuel tank with hot water.
  7. Shake the fuel tank vigorously for five minutes.

    8. Important: The fuel and water mixture is a hazardous material. Dispose of the fuel and water mixture in accordance with all applicable local, state, and federal laws and regulations.

  8. Drain the fuel tank.
  9. Make sure that all of the water is removed from the fuel tank.

    10. Important: If the inside of the fuel tank contains any traces of rust after cleaning, replace the fuel tank.

  10. Install the fuel tank pressure sensor to the fuel tank.
  11. Install the fuel pump to fuel tank.
  12. Install the fuel level sensor to the fuel tank.
  13. Install the fuel tank to the vehicle.
  14. Refill the fuel tank.

    15. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  15. Connect the negative battery cable.

    16. Tighten
    Tighten the negative battery cable terminal retainer to15N·m  (11 lb ft).

  16. Inspect for fuel leaks and repair as necessary.