Question about 1996 Jeep Grand Cherokee
Look under exhaust manifold on drivers side, closer to rear of
engine, mounted on engine block.
Keep in mind that the knock sensor is a tuned piezoelectric crystal transducer that is located in the cylinder head. The knock sensor provides the MCU with an electrical signal that is created by vibrations that correspond to its center frequency (5550 Hz). Vibrations from engine knock (detonation) cause the crystal inside the sensor to vibrate and produce an electrical signal that is used by the MCU to selectively ****** the ignition timing of any single cylinder or combination of cylinders to eliminate the knock condition.
This and other details can find in the Grand Cherokee Service Manual.
Good luck (remember rated this).
Posted on May 31, 2010
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Posted on Jan 02, 2017
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Important: The larger metal contact area of the knock sensor MUST be toward the engine block. DTC P0327 may result if the sensor is installed backwards.
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