Torque Converter Operation Test
WARNING: This page is about a different car, the 2010 Ford Pickup, 2010 Ford F550 Super Duty, 2010 Ford F450 Super Duty, and 2010 Ford Cab & Chassis. 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.
- Carry out Self Test, refer to ON-BOARD DIAGNOSTIC (OBD) WITH SCAN TOOL . Check for DTCs. Refer to DIAGNOSTICS .
- Connect a scan tool and monitor engine parameters.
- Bring the engine to normal operating temperature by driving the vehicle at highway speeds in the (D) position.
- 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.
- Engine RPM should increase when brake pedal is tapped and decrease about 5 seconds after pedal is released. If this does not occur, refer to DIAGNOSIS BY SYMPTOM - Torque Converter Clutch Operation Concerns.