Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYENGINE FUEL SYSTEMFUEL SYSTEMPRECAUTION

2004 Toyota Matrix XR, FWD, Standard

Fuel System: Precaution

2004 Toyota Matrix XR, FWD, StandardSECTION Precaution

BEFORE WORKING ON FUEL SYSTEM, DISCONNECT NEGATIVE (-) TERMINAL CABLE FROM BATTERY
DO NOT SMOKE OR WORK NEAR AN OPEN FLAME WHEN WORKING ON FUEL SYSTEM
KEEP GASOLINE AWAY FROM RUBBER OR LEATHER PARTS
WORK FOR PREVENT GASOLINE FROM SPILLING OUT
1. Remove the rear seat cushion.
  (See REMOVAL & INSTALLATION ) , 4WD: ) REMOVAL & INSTALLATION )
2. Remove rear floor service hole cover.
  (See REMOVAL & INSTALLATION ) , (4WD: REMOVAL & INSTALLATION )
3. Disconnect the fuel pump connector.
4. Start the engine. After the engine has stopped on its own, turn the ignition switch to lock.
5. Disconnect negative (-) terminal cable from battery.
6. Connect the fuel pump connector.
  
  Fig 1: Connecting Fuel Pump Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Install rear floor service hole cover.
  (See REMOVAL & INSTALLATION ) , 4WD: (REMOVAL & INSTALLATION )
8. Install the rear seat cushion.
  (See REMOVAL & INSTALLATION ), 4WD: (REMOVAL & INSTALLATION )
FUEL SYSTEM
1. When disconnecting the high fuel pressure line, a large amount of gasoline will spill out, so observe these procedures.
  1. Work for prevent gasoline from spilling out.
  2. Disconnect the fuel tank main tube.
  3. Drain the fuel remained inside the fuel tank main tube.
  4. Protect the disconnected fuel tank main tube from damage and foreign material by covering it with a vinyl bag.
    
    Fig 2: Identifying Fuel Tank Main Tube Covering With Vinyl Bag
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. Put a container under the connection.
  Fig 3: Putting Container Under Connection
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Observe these precautions when removing and installing the fuel injector.
  
  Fig 4: Precautions For Removing & Installing Fuel Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Never reuse an O-ring.
  2. When placing a new O-ring on the fuel injector, take care not to damage it in any way.
  3. Coat a new O-ring with spindle oil or gasoline before installing.
  NOTE: Never use engine, gear or brake oil.
3. Install the fuel injector to the fuel delivery pipe and cylinder head, as shown in Fig 5 . Before installing the fuel injector, be sure to apply spindle oil or gasoline on the place where the fuel delivery pipe touches an O-ring of the fuel injector.
  
  Fig 5: Installing Fuel Injector To Fuel Delivery Pipe & Cylinder Head
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Observe these precautions when disconnecting the fuel delivery pipe.
  NOTE: The structure of the metallic connector is shown in Fig 6 .

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.