Grand Cherokee 2WD V8-4.7L VIN J (2004)
Knock Sensor: Locations
4.7 L High-Output Engine
The two Knock sensors are bolted into the cylinder block under the intake manifold. High-Output Engine ONLY
NOTE:The left sensor is identified by an identification tag (LEFT). It is also identified by a larger bolt head. The powertrain Control Module (PCM)
must have and know the correct sensor left/right positions. DO NOT MIX THE SENSOR LOCATIONS