Torque Converter Stall Test Judgement Results

1. Stall speed is too high in both D and R ranges
   • Low line pressure
   • Low & reverse brake slippage
2. Stall speed is too high in D range only
   • Underdrive clutch slippage
3. Stall speed is too high in R range only
   • Reverse clutch slippage
4. Stall speed too low in both D and R ranges
   • Malfunction of torque converter
   • Insufficient engine output

Fig 1: Torque Converter Stall Test

Courtesy of HYUNDAI MOTOR CO.