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 280 (BRAKES MECHANICAL)ADJUSTMENTSDISC RUNOUT
2004 Toyota Matrix XR, FWD, Standard
Disc RUNOUT
2004 Toyota Matrix XR, FWD, StandardSECTION Disc RUNOUT
WARNING: This page is about a different car, the 2004 Lexus IS 300 and 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
- Remove front wheel. Remove caliper support assembly and suspend aside. See FRONT BRAKE CALIPER under REMOVAL & INSTALLATION.
- Remove caliper support assembly and suspend aside. See FRONT BRAKE CALIPER under REMOVAL & INSTALLATION.
- Turn disc 1/5 turn and reinstall. Install and tighten 3 hub nuts to specification. See TORQUE SPECIFICATIONS . Using a dial indicator, measure disc runout. See Fig 1. Make a note of runout and disc's position on hub.
- Repeat removing, turning, installing and measuring until disc has been installed on all hub positions. If minimum runout recorded in second and third position is less than specification, install disc in that position. See DISC BRAKE SPECIFICATIONS .
- If minimum runout recorded is greater than specification, replace disc and repeat procedure. It is possible to adjust disc runout by grinding it with an "On-car" brake lathe. Install torque plate and tighten 2 bolts to specification. See TORQUE SPECIFICATIONS .
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.