There are a few things that you can check.
1. Check the gear oil, if it is below than the required level, refill the gear oil up to the mark.
2. There is a possibility that gear oil need to be changed.
3. The final thing on the check list is that your transmission need to be replaced.
1. Check the gear oil, if it is below than the required level, refill the gear oil up to the mark.
2. There is a possibility that gear oil need to be changed.
3. The final thing on the check list is that your transmission need to be replaced.