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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1410 (Automatic Transmission - FNR5) >> Diagnostic Tests >> Torque Converter Diagnosis >> Torque Converter Operations Test

Torque Converter Operations Test

WARNING: This page is about a different car, the 2009 Mercury Milan and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

This test verifies that the Torque Converter Clutch (TCC) control system and the torque converter are operating correctly.

  1. Carry out the Self Test. Refer to On-Board Diagnostic (OBD) with Scan Tool . Check for DTCs. Refer to Diagnostic Trouble Code (DTC) Charts .
  2. Connect a scan tool.
  3. Bring the engine to normal operating temperature by driving the vehicle at highway speeds for approximately 15 minutes in D position.
  4. After normal operating temperature is reached, maintain a constant vehicle speed of about 80 km/h (50 MPH) and tap the brake pedal with the left foot.
  5. The engine RPM should increase when brake pedal is tapped, and decrease about 5 seconds after pedal is released. If this does not occur, see Torque Converter Clutch (TCC) Operation Concerns. Refer to Diagnosis By Symptom .
  6. If the vehicle stalls in D at idle with vehicle at a stop, move the position selector lever to L position. If the vehicle stalls, refer to Torque Converter Clutch (TCC) Operation Concerns in the Diagnosis By Symptom . Repair as necessary. If the vehicle does not stall in D position. Refer to Diagnosis By Symptom .
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