Cause of jolts when releasing the gas pedal in an automatic transmission:
* Wear of friction linings of transmission discs. As wear occurs, the coefficient of friction decreases, resulting in slippage and shock when shifting gears.
* Clogging of the valve body or solenoids with dirt or wear products. This may prevent smooth gear shifting.
* Worn or damaged torque converter. The torque converter smoothes gear changes, but if it malfunctions, shocks may occur.
* Insufficient level or poor quality of transmission fluid. Low or poor quality fluid does not provide sufficient lubrication and cooling, resulting in wear and shock.
* Faulty sensors or electronics. Speed sensors, shift position sensors, or the electronic control unit may not accurately transmit information, resulting in incorrect shifts and jerks.
*Wiring problems. Breaks or short circuits in the wiring can disrupt the operation of the automatic transmission control system, which leads to shocks.
* Mechanical damage. Damage to the gears, shafts or transmission housing can cause shocks and shocks.
Possible solutions:
* Replacement of worn friction linings and other automatic transmission parts.
* Flushing and cleaning of the valve body and solenoids.
* Repair or replacement of the torque converter.
* Checking and topping up transmission fluid.
* Diagnose and repair faulty sensors, electronics or wiring.
* Checking and eliminating mechanical damage.
Prevention:
* Regular replacement of transmission fluid and filter.
* Moderate driving, avoiding sudden acceleration and braking.
* Preventive diagnostics of automatic transmissions at service stations.
* Eliminate problems early to prevent costly repairs.