Note. Due to the complexity of the automatic transmission, it is beyond the power of the car owner to perform its inspection and maintenance. For troubleshooting not described below, the vehicle must be taken to a dealer or automatic transmission specialist. Do not rush to remove the transmission if you suspect a malfunction, as most checks are performed without removing it from the vehicle.
Transmission fluid leak
Transmission fluid is usually dark in color. Leaks should not be confused with engine oil, which can be easily carried into the transmission by airflow.
To determine the source of the leak, remove all dirt from the gearbox housing and surrounding area with steam or a degreaser. Drive the vehicle at a low speed so that the air flow does not carry the leaking fluid away from the source of the leak. Raise and support the vehicle and locate the leak. Most common leak locations:
- A) Transmission oil pan (chapter 1 and 7B).
- b) Dipstick socket (chapter 1 and 7B).
- V) Pipes / joints of the joints of the transmission with its radiator (chapter 7B).
Transmission fluid is brown or has a burnt odor
- Low transmission fluid or need to change (chapter 7B).
The main malfunctions in the selector mechanism
Chapter 7B describes the procedure for checking and adjusting the automatic transmission selector cable. The most common malfunctions caused by a poorly adjusted selector:
- A) Starting the engine in gears other than "Park" or"Neutral".
- b) Inconsistency of the indication of the inclusion of any gear with the actually engaged gear.
- V) The vehicle is moving while the mode is on "Park" or "Neutral".
- G) Unreliable or incorrect gear shifting.
Talk to chapter 7B and adjust the selector cable.
Downshift does not engage when the accelerator pedal is fully depressed (kickdown)
- Low transmission fluid (chapter 7B)
- Incorrect selector adjustment (chapter 7B).
- Throttle Position Sensor Malfunction (chapter 4).
Engine won't start in any gear, or starts in gears other than Park or Neutral
- Incorrect adjustment of the selector cable (chapter 7B)
Transmission slippage, rough shifting, noise or no rotation in forward or reverse gears
There are many possible causes of the above malfunctions, but the owner of the car can only do one thing - the fluid level. Before sending the car to a service station, check the level and condition of the fluid (see chapter 7B). Add or replace fluid as needed. If you cannot fix the problem, contact a specialist.