Ford 1L2Z-6B288-AA Sensor Assembly

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When troubleshooting the Camshaft Position (CMP) sensor, it's crucial to conduct thorough tests before attributing driveability issues to the sensor. The CMP sensor sends a voltage signal pulse to the PCM, indicating the approaching Top Dead Center (TDC) of the number 1 piston on the compression stroke and synchronizing fuel injector sequencing. On the 4.0L and 5.0L V8 engines, the CMP sensor is a Hall-effect switch, while the 4.0L SOHC V6 engine uses a magnetic pickup sensor. For the former engines, tests involve checking voltage between the sensor connector and ground, ensuring readings exceed 10 volts, and confirming pulsating DC-voltage during engine cranking. For the SOHC V6 engine, voltage checks and AC-voltage pulse tests are performed. If faults are identified, replacement involves disconnecting the sensor, removing, and installing a new one. Additionally, for 1995 and earlier models, a detailed procedure is outlined for timing the synchronizer during reinstallation. This includes marking the TDC and 26-degrees ATDC positions, disconnecting the battery, removing the sensor, lubricating the drive gear, aligning the sensor vane, and reconnecting the electrical connector. For 1996 and later models, a similar replacement process is outlined, emphasizing the use of an alignment tool during drive assembly reinstallation to avoid fuel system timing issues. The procedure includes positioning the number 1 piston at TDC, disconnecting the battery, marking the sensor's relative position, removing the sensor, aligning the vane with an alignment tool, lubricating components, inserting the assembly into the engine, checking the sensor connector position, installing the hold-down clamp, and finally, connecting the sensor electrical connector and battery ground cable. For the 4.0L SOHC V6 engine, the removal and installation process involves disconnecting the electrical connector, removing the retaining bolt, and reinstalling the CMP sensor following reversal of removal steps.