5.7L V8

WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Two sensors are used. Each sensor is bolted into the outside of cylinder block below the exhaust manifold (Fig 1).

Fig 1: Removing Knock Sensor (Right Sensor Shown) - 5.7L

Courtesy of DAIMLERCHRYSLER CORP.

Raise vehicle.
Disconnect knock sensor electrical connector.
Remove sensor mounting bolt (Fig 1). Note foam strip on 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 sensor from engine.