- low pressure in the main line;
- first gear and reverse gear brake slip.
The engine crankshaft speed during the Stall Test is higher than the nominal value only in the "D" position if the downshift clutch is slipping.
The engine crankshaft speed during the Stall Test is greater than the nominal value only in the "R" position if the reverse clutch is slipping.
The engine crankshaft speed during the Stall Test in positions "D" and "R" is less than the minimum nominal value in the following cases:
- the torque converter is faulty;
- the engine is faulty (insufficient power).
