- Low transmission fluid: Check the transmission fluid level and add more if necessary.
- Dirty transmission fluid: Change the transmission fluid according to the manufacturer's recommendations.
- Faulty shift solenoids: These solenoids control the flow of transmission fluid and can become faulty over time.
- Faulty transmission control module (TCM): The TCM is the brain of the transmission and can malfunction due to various reasons.
- Mechanical issues: There might be a mechanical problem with the transmission itself, such as worn gears or damaged clutches.
Diagnosis and repair:
To diagnose the exact cause, it is recommended to take the vehicle to a qualified mechanic or transmission specialist. They can perform a diagnostic test and pinpoint the issue. Depending on the cause, the repair could involve replacing the faulty parts or performing transmission repairs.
