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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 954 (3.5L ENGINE (SERVICE INFORMATION))OIL PUMPDISASSEMBLY
2004 Toyota Matrix XR, FWD, Standard

Oil Pump: Disassembly

2004 Toyota Matrix XR, FWD, StandardSECTION Disassembly
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
  1. To remove the relief valve, proceed as follows:
  2. Remove cotter pin. Drill a 3.175 mm (1/8 inch.) hole into the relief valve retainer cap and insert a self-threading sheet metal screw into cap.
  3. Clamp screw into a vise and while supporting oil pump body, remove cap by tapping oil pump body using a soft hammer. Discard retainer cap and remove spring and relief valve (Fig 1 ).
    Fig 1: Exploded View Of Oil Pressure Relief Valve
    G03572584Courtesy of DAIMLERCHRYSLER CORP.
  4. Remove oil pump cover screws, and lift off cover.
  5. Remove pump rotors.
  6. Wash all parts in a suitable solvent and inspect carefully for damage or wear (Fig 2 ).
    Fig 2: Exploded View Of Oil Pump
    G03572585Courtesy of DAIMLERCHRYSLER CORP.
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.