Jeep 68223050AA Sensor-Knock

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The foam strips are for retaining the bolts during assembly and should not be treated with any adhesive or sealant.

Start by disconnecting the cable(s) from the negative battery terminal(s). For the 3.6L V6 engine, remove the intake manifolds and then disconnect the electrical connector(s) before removing the sensor(s) mounting bolt(s). For the 3.7L V6 and 4.7L V8 engines, remove the intake manifold and then disconnect the knock sensor electrical connector located at the rear of the engine, behind the intake manifold. For HEMI engines, raise the front of the vehicle and secure it on jackstands. Disconnect the electrical connector from the knock sensor and remove the knock sensor mounting bolt. Finally, install the knock sensor(s) by reversing the removal process and tightening the mounting bolts.

For the 3.6L V6 engine, there are two knock sensors located below the lower intake manifold area. The sensor closest to the front of the engine is Sensor 1, and the other is Sensor 2. They can be found in the valley between the cylinder banks. For the 3.7L V6 and 4.7L V8 engines, the knock sensor is located at the rear of the engine, behind the intake manifold. For HEMI engines, there are two knock sensors located on the left and right sides of the block, below the exhaust manifold.

The knock sensors for the 3.6L V6, 3.7L V6, and 4.7L V8 engines are located on top of the block, in the valley between the cylinder heads, underneath the intake manifold.

Start by disconnecting the cable(s) from the negative battery terminal(s). For the 3.6L V6 engine, remove the intake manifolds and then disconnect the electrical connector(s) before removing the sensor(s) mounting bolt(s). For the 3.7L V6 and 4.7L V8 engines, remove the intake manifold and then disconnect the knock sensor electrical connector located at the rear of the engine, behind the intake manifold. For HEMI engines, raise the front of the vehicle and secure it on jackstands. Disconnect the electrical connector from the knock sensor and remove the knock sensor mounting bolt. Finally, install the knock sensor(s) by reversing the removal process and tightening the mounting bolts.