Common automatic transmission faults Nissan Pathfinder R51
1. Gear slippage
* Symptoms: Difficulty shifting gears, car slipping when accelerating
* Reasons: Worn clutches, valve body malfunction, problems with electronics
2. Hard gear shifting
* Symptoms: Shocks and vibrations when shifting gears
* Reasons: Worn lock-up torque converter, low transmission fluid level
3. Delays when shifting gears
* Symptoms: Slow gear shifting, stuck in one gear
*Causes: Sensor malfunctions, wiring problems, transmission fluid contamination
4. Transmission fluid leak
* Symptoms: Visible leaks under the car, decreased fluid levels in the transmission
* Causes: Worn gaskets and seals, damage to transmission housing
5. Transmission overheating
* Symptoms: Transmission overheat indicator glows, burning smell appears
*Causes: Transmission cooling system malfunction, low transmission fluid level
6. Not shifting gears
* Symptoms: The car does not move when the gear is engaged
*Causes: Torque converter malfunction, problems with the hydraulic system
7. Gear blocking
* Symptoms: Transmission remains locked in one gear
* Causes: Mechanical damage, sensor malfunctions
8. Transmission noise
* Symptoms: Grinding, squealing or humming noise while driving
* Reasons: Bearing wear, differential failure
9. Transmission vibration
* Symptoms: Vibrations felt in the interior or under the vehicle
* Reasons: Driveshaft imbalance, axle malfunction
10. Foreign odors during transmission operation
* Symptoms: Burning, melted rubber or metal smell
* Reasons: Severely overheated transmission fluid, burnt clutches