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 DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSKNOCK SENSORDESCRIPTION AND OPERATIONKNOCK SENSOR - DESCRIPTION
2009 Jeep Commander 4WD V8-5.7L
Knock Sensor - Description
2009 Jeep Commander 4WD V8-5.7LSECTION Knock Sensor - Description
DESCRIPTION
3.7L - Two knock sensors (1) are bolted to the cylinder block under the intake manifold.
4.7L - One knock sensor (1) is bolted to the cylinder block under the intake manifold.
5.7L - Two knock sensors (1) are bolted to each side of the cylinder block (outside) under each exhaust manifold (3).
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.