Help please my daughters punto developed a high pitched squeal ,she took it to a garage who said it was a faulty alternator and replaced it my daughter happily left in her car with no squeal. The next day as she went to drive off,car started but no power steering ignition off then back on power steering working its becoming very intermittent but the percentage of not working is becoming greater . I'm just hoping to god it doesn't fail on her whilst driving . She has returned to the garage twice they've changed the alternator again saying first replacement was possibly faulty but still the saga continues. Please somebody give me a simple answer as I'm not greatly mechanically minded but neither my daughter nor I can afford to keep throwing money at an 07 punto nor replace the car. I'm aware this question may have been asked before but to be honest the answers I found very confusing .