What Causes an Automatic Transmission to Fail to Engage?

[MaggieAnn]

Possible causes include a malfunction in the gear shift lever assembly, a failure in the P-gear lock solenoid valve inside the shift lever, or a damaged brake light switch, all of which can prevent the gear from moving. Relevant details are as follows: 1. During the use of the car's gear shift lever, shifting gears requires looking down at the lever. Avoid prolonged driving in low gear, as high gear is more fuel-efficient than low gear, so it is advisable to shift up promptly after starting. If the clutch pedal is not fully depressed during gear shifting, it can cause gear damage. Additionally, when using the clutch, avoid resting your foot on it, as this can lead to excessive wear on the release bearing. 2. If you encounter difficulty shifting into a gear, avoid forcing it. When the gear lever is in neutral, avoid shaking it back and forth, as this can cause unnecessary wear on components and affect the timing of gear shifts. Do not skip gears when upshifting; instead, shift sequentially to prevent a loss of power continuity in the car. Downshifting, however, can skip gears. Avoid engaging reverse gear before the vehicle comes to a complete stop, as this can cause gear damage.