Well fitted new air filter today and changed the oil - just a mini service.
While i had the air box off and its pipework I thought i'd clean the inlet/butterfly with some carb cleaner.
All went back together and the car runs nice and smoothly - although now the motor that opens /closes the butterfly on the inlet constantly makes a whining noise. Every now and again the whining noise stops it makes a clicking noise then continues.
Anyone had this before or know what might have caused it?
Its worrying that the motor is under constant load and could burn out