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 (ES300)
2004 Toyota Matrix XR, FWD, Standard
Removal (ES300)
2004 Toyota Matrix XR, FWD, StandardSECTION Removal (ES300)
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 air cleaner hose and resonator. Disconnect accelerator cable. Disconnect Throttle Position (TP) sensor connector. Disconnect Idle Air Control (IAC) valve connector.
- Disconnect Acoustic Control Induction System (ACIS) vacuum switching valve connectors. Disconnect EVAP vacuum switching valve connector. Remove Data Link Connector (DLC) No. 1 from bracket on IAC valve. See Figure. Disconnect power steering hose from No. 1 engine hanger.
- Remove PCV hose from PCV valve at right cylinder head. Disconnect ground strap and cable from ACIS IAC valve. Disconnect ground cable from air intake chamber. Disconnect brake booster vacuum hose from air intake chamber. Disconnect 2 water by-pass hoses from throttle body.
- Disconnect air assist hose from throttle body. Disconnect EVAP purge hose from pipe on emission control valve set. Remove 2 vacuum hoses from ACIS vacuum tank. Remove engine wiring harness clamp from emission control valve set. Remove air intake chamber assembly and gasket.
- Disconnect fuel injector connectors. Disconnect air assist pipe from bracket at fuel line. Remove air assist hoses from intake manifold. Remove fuel pipe clamp from No. 1 fuel pipe at fuel filter. Perform STEP 1. See Figure.
- Ensure area around No. 1 fuel pipe and fuel filter is clean. Depress both sides of retainer and pull No. 1 fuel pipe with disconnect fitting from fuel filter. Perform STEP 2. See Figure. Remove fuel rail bolts. Remove fuel rails together with injectors and fuel line. Remove spacers from intake manifold. Remove injectors from fuel rails. Remove "O" rings and grommets 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.