SENSOR, Knock: Removal: 5.7L

Fig 1: Negative Battery Cable

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Disconnect and isolate the negative battery cable (1).

Fig 2: Lower Splash Shield & Fasteners
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Raise and support the vehicle. Refer to Hoisting, Standard Procedure .
Remove the belly pan retainers (1) and remove the belly pan.

Fig 3: Locating Knock Sensor
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Two knock sensors (1) are used. Each sensor is bolted to the outside of cylinder block below the exhaust manifold (3).
Disconnect the knock sensor electrical connector (5).
NOTE:
The knock sensor has a foam strip on the bolt threads, this foam is used only to retain the bolts to 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 the knock sensor retaining bolt (2) and remove the sensor (1).