My punto is suffering from karrrrrrrr sound and jerk whenever I engage reverse gear. Its happening with 50% attempts. Also whenever this sound comes, gear becomes tight too. I use to press clutch fully but still this is happening. To avoid this, I need to engage reverse very slowly slowly. This slow way is not at all normal and can't be used normally. Also 1st gear is also getting tight. Any clue about this, I doubt clutch is the culprit and should not be covered under warrenty. Any idea what be the reason and cost involved in resolution.