Upshift Control and Torque Converter Clutch Apply

Important: The torque converter clutch will not engage if the engine coolant has not reached a minimum operating temperature of approximately 54°C (130°F), With gear selector in Drive (D), perform the following steps:

1. Accelerate to the chosen throttle position. Use a steady increasing throttle pressure.
2. As the transmission upshifts, note the shift speed for each of the following gear engagements:
- 2nd gear
- 3rd gear
- Note the speed shift point for TCC apply. This apply should occur between 37-67 km/h (23-42 mph). If you do not notice the apply, refer to the Preminary Torque Converter Clutch Diagnosis information. Testing and Inspection