Possible causes of kicking when shifting to reverse gear in an automatic transmission:
1. Low transmission fluid level:
* Check the transmission fluid level on the dipstick and add fluid if necessary.
2. Contaminated or old transmission fluid:
* Replace transmission fluid and filter according to manufacturer’s recommendations.
3. Worn or faulty automatic transmission components:
*Clutch discs, shift solenoids, or valve bodies can wear or fail, causing harsh shifting.
4. Incorrect shift cable setting:
* The shift cable may be incorrectly adjusted, causing difficulty shifting and kicking.
5. Hydraulic control unit:
* The hydraulic control unit may send incorrect signals to shift gears, resulting in kicking.
6. Problems with the electronic control unit (ECU):
* The ECU may incorrectly interpret signals from transmission sensors, causing kicks when shifting gears.
7. Shaft damage:
* Damage to the automatic transmission input or output shaft may cause kicking when shifting gears.
8. Freewheel failure:
* A broken freewheel can cause kicking when shifting from Park or Neutral to Reverse.
Troubleshooting steps:
* Check the level and condition of the transmission fluid.
*Adjust the shift cable if necessary.
* Perform a transmission system scan using the OBD2 diagnostic scanner.
*Consult a qualified automatic transmission mechanic if the problem persists.