Malfunctions of hydraulic automatic transmissions
1. Reduced automatic transmission fluid level
* Signs: slipping, delayed gear shifting, overheating
* Reason: fluid leak, late maintenance
2. Automatic transmission fluid contamination
* Signs: hard gear shifting, noise, slipping
* Reason: natural wear and tear, overheating, poor quality fluid
3. Worn or damaged friction discs
* Signs: slipping, vibration, noise
* Reason: natural wear and tear, overheating, poor quality fluid
4. Valve block clogged
*Symptoms: Rough shifting, missing or delayed shifting
* Reason: contamination of the automatic transmission fluid, wear or damage to hydraulic components
5. Worn or damaged torque converter
* Signs: vibration when shifting gears, slipping, noise
*Cause: natural wear and tear, overheating, mechanical damage
6. Malfunction of automatic transmission solenoids
*Symptoms: Hard shifting, slipping, missing or delayed shifting
*Cause: electrical faults, mechanical wear
7. Vehicle speed sensor malfunction
* Signs: Inaccurate speedometer readings, incorrect gear shifts
*Cause: sensor or wiring fault
8. Automatic transmission fluid leakage
* Signs: puddles of fluid under the car, decreased fluid level
*Cause: Leaking seals, gaskets or hoses
9. Automatic transmission overheating
* Signs: slipping, burning smells, delayed gear shifting
* Reason: insufficient fluid supply, clogging of the automatic transmission radiator, wear of components
10. Locking torque converter clutch
* Symptoms: Vibration when driving at constant speed
*Cause: Faulty clutch or component