On a recent motorway trip I noticed a high pitched whistle on acceleration coming from the engine bay on my HDJ100. I stopped by a mechanic and they suggested it was an issue with the vacuum dampener, so I went ahead and got a new one but the noise still persists. The whistle seems to be in time with the revs and sounds like its coming from the back of the engine.
Has anyone got any idea on what it could be or help to diagnose it? Thanks in advance!
Has anyone got any idea on what it could be or help to diagnose it? Thanks in advance!