Hi guys, a newbie here. Was just wondering if anyone can help me please. I've just had my alternator belt changed as it snapped last thursday, jump started the car and it was fine that night and friday. On saturday it would not go over 20mph, was really struggling and then it died. It will not start at all although it does try, it almost sounds like it catches and cuts straight out. Any ideas on what this could be please? Its a 55 plate 1.9D Croma Eleganza. TIA