- Low transmission fluid: If the transmission fluid level is too low, it can cause the transmission to slip, overheat, and shift poorly.
- Dirty transmission fluid: Dirty transmission fluid can also cause the transmission to slip and overheat, leading to shifting problems.
- Damaged or broken transmission components: If any of the transmission's internal components are damaged or broken, it can cause shifting problems.
- Faulty transmission control module (TCM): The TCM is the computer that controls the transmission. If the TCM is faulty, it can send incorrect signals to the transmission, causing it to shift improperly.
As for the fluid leaking, it could be due to a number of reasons, including:
- A damaged or leaking transmission pan gasket
- A worn or damaged transmission fluid filter
- A damaged or leaking transmission fluid cooler line
- A cracked or broken transmission case
It's important to note that diagnosing the exact cause of shifting problems and fluid leaks in an automatic transmission can be complex and requires a thorough inspection by a qualified mechanic.
