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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 23 (ENGINE CONTROL SYSTEM & COMPONENT TESTING - 4-CYLINDER)IDLE CONTROL SYSTEMSTHROTTLE BODYHIGHLANDER
2004 Toyota Matrix XR, FWD, Standard
Throttle Body: Highlander
2004 Toyota Matrix XR, FWD, StandardSECTION Highlander
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tacoma, 2002 Toyota RAV4, 2002 Toyota Prius, 2002 Toyota MR2, and 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- Check that throttle linkage moves freely at throttle body. Ensure no vacuum ports on throttle body are restricted. Procedure for checking vacuum supply at throttle body is not available from manufacturer.
- Check that no clearance exists between throttle stop screw and throttle lever when throttle is fully closed. See Fig 1. If clearance exists between throttle stop screw and throttle lever with throttle fully closed, go to next step.
- Loosen lock nut on throttle stop screw. See Fig 1. With clearance between throttle stop screw and throttle lever, hold throttle fully closed and tighten throttle stop screw until it just contacts throttle lever. Once throttle stop screw contacts the throttle lever, tighten throttle stop screw an additional 1/4 turn and then tighten lock nut. Ensure Throttle Position (TP) sensor operates properly after performing this procedure. See THROTTLE POSITION SENSOR under ENGINE SENSORS & SWITCHES.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.