Greetings

I was driving from Sydney to Newcastle the other day and when I came off the motorway, a strange knocking sound that sounded like a CV joint starting coming from under the driver wheel when I did left hand turn on roundabouts and corners. However, when I got home, I went out to refuel a few hours later and the car would not make the sound again. I was wondering whether it was due to driving two hours straight on morotway and something got hot. Does this sound possible or what do you think it might be?