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.
Sensor, Knock: Removal: 6.2L
Two knock sensors are used. Each sensor is bolted to the outside of cylinder block below the exhaust manifold.
- Disconnect and isolate the negative battery cable.
- Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
- Remove the front skid plate. Refer to REMOVAL
.
- Remove the heat shield (1) from knock sensor (shield snaps onto sensor).
- Disconnect the knock sensor wire harness connector (5).NOTE:
Note the foam strip on the knock sensor retaining bolt threads. This foam is only used to retain the bolts to the knock sensors for plant assembly. It is not used as a sealant. Do not apply any adhesive, sealant or thread locking compound to these bolts.
- Remove bolt (2) and the knock sensor from the cylinder block.
Use the Manual With the Right Hardware
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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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