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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 749 (Automatic Transmission - 4R100) >> Description And Operation >> Transmission Electronic Control System >> Turbine Shaft Speed (TSS) Sensor

Turbine Shaft Speed (TSS) Sensor

WARNING: This page is about a different car, the 2003 Ford RV Cutaway, 2003 Ford Econoline, 2003 Ford E550 Super Duty, 2003 Ford E450 Super Duty, and 2003 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

The turbine shaft speed (TSS) sensor is a magnetic pickup that sends the powertrain control module (PCM) information on the rotation speed of the coast clutch cylinder assembly. The turbine shaft speed (TSS) sensor is mounted externally on the top of the transmission case. The PCM uses turbine shaft speed TSS sensor signals to help determine electronic pressure control (EPC) pressure, shift scheduling the torque converter clutch (TCC) operation.

For diesel applications the PCM sends the TCC solenoid pulse-width modulated signals to smoothly engage the torque converter clutch.

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