Hi all,
Recently my car has started to make an unusual noise after start up. It is a kind of undulating low pitched squeal, and normally lasts a few miles, or can last longer. The performance of the engine doesn't seem to have been effected, and the car has been serviced recently, and nothing was mentioned, so I wasn't too concerned.
Any ideas as to what may be causing it? Car has done 27,500 miles.
TIA