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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1 (ENGINE CONTROLS - REMOVAL, OVERHAUL, INSTALLATION)FUEL SYSTEMFUEL RAILS & INJECTORSREMOVAL (SC400)
2004 Toyota Matrix XR, FWD, Standard
Removal (SC400)
2004 Toyota Matrix XR, FWD, StandardSECTION Removal (SC400)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2000 Lexus SC 400, 2000 Lexus SC 300, 2000 Lexus RX 300, 2000 Lexus LX 470, and 2000 Lexus LS 400. However, it is still accessible from the selected car via links, so may be relevant.
- Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Disconnect negative battery cable. Remove engine cover. Remove intake air connector pipe located between throttle body and air cleaner assembly. Disconnect accelerator cable. Remove EVAP vacuum switching valve. See Figure.
- Remove engine cover brackets. Disconnect brake booster vacuum hose and PCV hose from intake manifold. Disconnect fuel injector connectors. Disconnect left cylinder head ignition coil/ignitor connectors. Disconnect camshaft timing oil control valve connectors. Disconnect Variable Valve Timing (VVT) sensor connectors. See Figure.
- Disconnect camshaft position sensor connector. Disconnect engine wiring harness from wire clamp on left cylinder head valve cover and timing belt rear plate. Disconnect engine wiring harness from wire clamps on timing belt cover. Disconnect engine wiring harness protector and wire clamp bracket from intake manifold and left front bearing cap. Place a towel under fuel line. Slowly loosen fuel pressure pulsation damper. Remove fuel pressure pulsation dampers and gaskets.
- Disconnect wiring harness clamps from wire clamp bracket on right fuel rail. Remove accelerator cable bracket. Remove fuel rail-to-intake manifold nuts. Remove fuel rails and injectors as an assembly. See Figure. Remove injectors from fuel rail. Remove "O" rings, grommets and insulators from injectors.
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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.