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 MANUALSJEEP2009COMMANDER 4WD V8-5.7LREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLDISC BRAKE SYSTEMBRAKE ROTOR/DISCSERVICE AND REPAIRPROCEDURES
2009 Jeep Commander 4WD V8-5.7L
Procedures
2009 Jeep Commander 4WD V8-5.7LSECTION Procedures
DISC BRAKE ROTOR MACHINING
NOTE: A hub mounted on-vehicle lathe is highly recommended. This type of lathe trues the rotor to the vehicles hub/bearing.
The disc brake rotor can be machined if scored or worn. The on-vehicle lathe must machine both sides of the rotor simultaneously with dual cutter heads. The rotor mounting surface must be clean before placing on the on-vehicle lathe. Equipment capable of machining only one side at a time may produce a tapered rotor This type of rotor machining is not recommended.
NOTE: Proper wheel torque is also critical to help prevent any warping of the disc brake rotor.
CAUTION: Brake rotors that do not meet minimum thickness specifications before or after machining must be replaced.
RENDER: 1.0x
NO RELATED
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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.