Why won't the car move?

[JessicaAnn]

The car can shift gears but won't move, which is a clutch-related issue. Here are other possible causes: Oil pump drive gear fracture: The oil pump drive gear is driven by the keyway shaft on the torque converter housing. If the torque converter is improperly installed, it may crush the drive gear, or operational fatigue could cause the drive gear to fracture. Therefore, when installing the transmission onto the torque converter, ensure the torque converter shaft key is inserted into the oil pump drive gear keyway before tightening the bolts between the transmission and the engine block. Control system malfunction: Check the connection between the shift lever and the manual valve. If the shift lever is disconnected from the manual valve or not properly aligned, it will prevent the transmission from engaging and shifting into the correct gear. Check for clutches or brakes that are involved in both forward and reverse gear operations.