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.
2003 Hummer H2FACTORY OEM SERVICE PROCEDURE
Service Specifications
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
BRAKE SPECIFICATIONS
| Application | In. (mm) | ||
|---|---|---|---|
| Brake Pedal Height (Reference Value) | 5.37 (136.4) | ||
| Brake Pedal Freeplay | 0.16-0.33 (4.0-8.4) | ||
| Brake Pedal-To-Floor Clearance | 3.54 (89.8) | ||
| Front Disc Brakes | |||
| Minimum Machine To Thickness | 0.94 (24) | ||
| Minimum Rotor Thickness | 0.91 (23) | ||
| Minimum Disc Pad Thickness | 0.079 (2) | ||
| Rotor Diameter | |||
| 2.0L | 10.9 (277) | ||
| 2.3L | 11.8 (300) | ||
| Rotor Runout | 0.002 (0.05) | ||
| Rotor Thickness Variation | 0.00059 (0.015) | ||
| Wheel Lug Nut | 65-87 (88-118) | ||
| Rear Disc Brakes | |||
| Maximum Thickness Variation | 0.00059 (0.015) | ||
| Minimum Pad Thickness | 0.079 (2) | ||
| Rotor Diameter | |||
| 2.0L | 10.4 (264) | ||
| 2.3L | 11.0 (279) | ||
| Rotor Maximum Runout | 0.002 (0.05) | ||
| Rotor Minimum Thickness | 0.35 (9) | ||
| Rotor Minimum Machine To Thickness | 0.390 (9.906) | ||
Factory Service Tools
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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.
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