Automatic transmissions (AT) do not require manual adjustment in most cases because the electronic control unit (ECU) controls the operation of the transmission.
However, there are a few exceptions where manual adjustment may be required:
1. Adjusting the gear shift cable
* Used in some older automatic transmission vehicles where gear shifting is accomplished using a mechanical cable. Over time, the cable can stretch, causing shifting problems.
*Adjustment involves changing the length of the cable to ensure proper shifting operation.
2. Adjusting the reverse belt
* Some automatic transmissions use a belt to engage reverse. Over time, the belt can stretch or slip, making it difficult to engage reverse.
*Adjustment involves tightening the band to ensure proper engagement.
3. Fluid pressure adjustment
* Some automatic transmissions use hydraulic fluid pressure to control the transmission. Over time, the pressure may deviate from the optimal value, which leads to problems with gear shifting.
* Adjustment consists of changing the fluid pressure using a special adjusting screw or valve.
Performing automatic transmission adjustment:
Manual automatic transmission adjustment usually requires special tools and knowledge. It is not recommended to make adjustments yourself unless you have relevant experience. It is best to have a qualified mechanic or dealer make adjustments.
Signs that the automatic transmission needs adjustment:
* Problems with gear shifting
* Delays when shifting gears
* Gear slippage
* Difficulty turning gear on or off
* Noises or vibrations when shifting gears
Prevention:
To avoid the need for automatic transmission adjustments, it is recommended to regularly service the transmission, including:
* Replacement of transmission fluid in accordance with manufacturer’s recommendations
* Replacing the automatic transmission filter
* Diagnose and repair any automatic transmission problems as soon as possible