931 been fixed now got sent to central and they have I think 🤔 either replaced the old air fan or just repaired it 931 sounds similar to one the old Royales Volvo Olympians (X285 for reference) as they sounded just as bad as this when their air fans would overheat common problem with Volvo but 931 is a good bus just the engines way of saying it’s not happy after being sat of the road for over a year
