What Are the Reasons for a Car's Failure to Move When in Gear?

1 Answers
LeAnastasia
07/29/25 5:19pm
Reasons for a car not moving after shifting into gear: Functional comprehensive failure, involving the clutch, transmission, and drive axle. Diagnosis should first determine the fault location. Specific reasons for a car's inability to move when in gear: Automatic transmission oil pan leakage, with all hydraulic oil drained; Loosening or detachment of the linkage or cable between the control handle and the manual valve rocker arm, keeping the manual valve in neutral or parking position; Clogging of the oil pump inlet filter screen; Severe leakage in the main oil circuit; Damage to the oil pump. Diagnosis of the car's failure to move when in gear: Check if there is hydraulic oil in the automatic transmission; Check if the linkage or cable between the automatic transmission control handle and the manual valve rocker arm is loose or detached; Check if hydraulic oil flows out from the pressure test hole; Check if there is any looseness between the manual valve rocker arm shaft and the rocker arm, or if the manual valve spool is broken or unhooked; For functional comprehensive failure, check if the rear axle or half-shaft is broken; If the drive shaft does not rotate, the fault lies in the transmission; If the drive shaft does not rotate in any gear, the fault is in the clutch. Check if the clutch is severely slipping, or if all the spline teeth of the driven plate hub and the rivets on the steel plate are sheared or the steel plate is fractured.
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