What Are the Signs of a Failing Car Transmission?
1 Answers
There are six symptoms when a transmission is about to fail. Here are the relevant details: 1. Transmission fluid leakage: If the car has difficulty starting, experiences severe jerking in low gears, and when accelerating, the engine revs up but the car barely moves—almost as if it's not in gear—this may indicate transmission fluid leakage. 2. Transmission noise: Unusual noises from the transmission during driving could be due to worn or damaged bearings, worn transmission components, or low-precision replacement parts. 3. Engine stalling after shifting: A faulty lock-up solenoid valve, stuck lock-up control valve, low idle speed, loose idle cutoff valve, excessively high gear, or clogged oil-gas separator can all cause the engine to stall after shifting. 4. Gear shift shock: This refers to the transient changes in torque transmission of the powertrain during normal driving and gear shifting, resulting in vibrations or noise inside the car. 5. Automatic shifting time too long or too short: Automatic transmissions usually have specific shift points based on RPM and speed. If the shifting time suddenly becomes too long or too short, it indicates an out-of-proportion transmission ratio, often accompanied by excessively high engine RPM. 6. Unusual odors: The transmission operates using hydraulic fluid. When the fluid temperature gets too high, it can cause burning, emitting odors that signal abnormal operation of certain transmission components.
