What Are the Symptoms of a Faulty Automatic Transmission?
3 Answers
Automatic transmission failure symptoms include: 1. Transmission Slipping: While driving, when accelerating, you hear the engine revving without a corresponding increase in vehicle speed, accompanied by poor acceleration; 2. Transmission Fluid Leak: Noticeable difficulty when starting the vehicle, and although engine RPM increases when pressing the accelerator, there is no significant increase in speed; 3. Transmission Jerking: During driving, gear shifts feel noticeably jerky or shaky, possibly due to excessively high transmission fluid temperature, internal accumulation of stubborn dirt and debris, or valve body blockage; 4. Transmission Noise: Unexplained noises or even loud sounds from the transmission while driving, with no identifiable source, and intermittent, muffled noises during gear changes.
Oh no, if there's an issue with an automatic transmission, you'll definitely feel it while driving. The most common symptom is jerky shifting—instead of a smooth transition, the car suddenly lurches forward or gets yanked backward, like it's been kicked. Sometimes, the engine revs skyrocket but the car doesn't pick up speed, feeling sluggish even when you floor the accelerator; that's the infamous transmission slipping. You might also hear strange noises, especially during gear changes—clunking or whining sounds that make your heart sink. Even scarier is when the gear-shaped warning light on the dashboard suddenly lights up yellow or red, signaling you to get it checked ASAP. And if you spot an oil puddle under the car near the transmission area, be extra cautious—it could mean a seal failure, and running dry will leave you stranded. If any of these happen, head to the repair shop immediately.
I think if the transmission is sick, the most obvious sign is that its 'voice' changes. Normal gear shifts are very subtle, almost imperceptible. But when there's a problem, you'll feel noticeable jerks, especially during acceleration from a stop or deceleration to a halt—the car may lurch forward or pull back. Lack of power during acceleration is a major issue; the engine sounds loud and strained, revs shoot up high, but the car feels like it's being held back by an invisible hand, struggling to gain speed, particularly noticeable when climbing hills. The shift timing also becomes erratic—it won't upshift when it should or downshift when needed, making driving feel awkward. Keep an eye out for red or brown oil stains under the car, which signal leaks. The engine warning light might also come on occasionally. Don't ignore these signs—address them promptly.
