Clicking Sound When Shifting Automatic Transmission?
4 Answers
Automatic transmission makes a clicking sound when shifting, which can occur under the following circumstances: 1. Generator gear issue. The symptom is a clicking sound when shifting to D or R gear while pressing the brake, but no sound when shifting to N gear. There is no abnormal noise while driving. Solution: Replace the generator. 2. Large valve clearance and poor lubrication when the engine is cold. The symptom is a clicking sound when shifting during the transition from cold to warm engine state, lasting about 3 minutes. This is normal and requires no action. 3. Parking on a slope by shifting to P gear first and then applying the handbrake. On a slope, due to inertia, there is an "external force." If P gear is engaged first, it bears the force, and the vehicle's weight is entirely on the P gear, resulting in a clicking sound when shifting. If the handbrake is applied first, the handbrake bears the force, and no clicking sound occurs. 4. Shifting while the vehicle is not fully stopped. This operation not only causes abnormal noise but also significantly shortens the transmission's lifespan.
I have over a decade of experience driving automatic transmission vehicles. The clicking sound when shifting gears is mostly caused by internal transmission issues. For example, a loose shift linkage or worn gears can create friction noise with every gear lever movement. Additionally, faulty hydraulic valve bodies or aging driveshaft couplings may also cause abnormal sounds. If left unrepaired, this could accelerate wear or even lead to loss of control. I recommend first testing different gear positions to identify the sound source. If the noise persists in all gears, promptly visit a professional repair shop to inspect transmission fluid and linkage mechanisms—avoid DIY attempts to prevent further damage. Driving safety comes first, as neglecting minor issues often leads to major consequences.
My automatic transmission car also made a clicking noise when shifting gears last year. After inspection, it turned out to be loose screws on the gear lever base. A simple solution: Open the hood yourself and use a wrench to tighten the bolts or linkage joints near the transmission, being careful not to touch any live electrical components. If the noise persists, try gently pressing the brake when shifting gears. If the sound becomes louder, it may indicate the need to change the transmission fluid or hydraulic components. In most cases, having a mechanic check it out can solve the problem, costing just a few hundred dollars and avoiding the risk of major repairs. Regular maintenance can also prevent these issues, saving you time, effort, and money.
The clicking sound when shifting gears in an automatic transmission often stems from loose mechanical components, such as aging engine mounts or wear at drivetrain connection points. If left unaddressed, this abnormal noise can accelerate wear, leading to sluggish gear shifts or even a breakdown on the road, posing serious risks. Pull over immediately to inspect, and seek professional help to read fault codes with a diagnostic tool—avoid forcing the vehicle to prevent higher costs. Develop a habit of regular transmission checks to prevent minor issues from escalating into major repairs.
