Removal - 4.0L: Notes
The Camshaft Position Sensor (CMP) on the 4.0L 6-cylinder engine is bolted to the top of the oil pump drive shaft assembly (Fig 1 ). The sensor and drive shaft assembly is located on the right side of the engine near the oil filter (Fig 2 ).
The rotational position of oil pump drive determines fuel synchronization only. It does not determine ignition timing.
Two different procedures are used for removal and installation. The first procedure will detail removal and installation of the sensor only. The second procedure will detail removal and installation of the sensor and oil pump drive shaft assembly. The second procedure is to be used if the engine has been disassembled.
An internal oil seal is used in the drive shaft housing that prevents engine oil at the bottom of the sensor. The seal is not serviceable.