Ford 1L5Z-7H103-DA Sensor Assembly - Engine

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Disconnect the cable from the negative battery terminal. Raise the vehicle and place it securely on jackstands. The TSS sensor is located on the left side of the transmission. Detach the shift cable from the cable bracket, then remove the bracket for access. Disconnect the electrical connector from the TSS sensor. Remove the TSS sensor retaining bolt. If you're planning to reuse the old TSS sensor, remove and discard the old 0-ring. Before installing the new 0-ring, lubricate it with petroleum jelly. Installations the reverse of removal. Be sure to tighten the TSS sensor bolt securely.

On some later models, there are three speed sensors on the upper left side of the transmission.

Disconnect the cable from the negative battery terminal.

If you're planning to reuse the old OSS sensor, remove and discard the old O-ring.

To replace the Crankshaft Position (CKP) sensor, disconnect the battery, remove components like the accessory drive belt or alternator, unscrew the sensor, and install a new one with specific alignment procedures for different models.