Scy

Standard intake system, I haven't added or changed anything about the car since I got it. I've had it for almost 2 years, and the noise has only just appeared in the last 3 or 4 months. Only work I've had done it since I got it was getting a new radiator and clutch put in and I havent noticed any mechanical issues or changes in the way it runs/drives since the noise appeared.

Hi all, I've got a strange whistling noise which, from my perspective in the drivers seat, is coming from the front left of my car (1990, R31 4 door manual). All of my car savvy friends have had a drive/listen and have been unable to identify it, and I've also taken the car to 2 different mechanics, who were also unable to tell me what it was. The noise is only there under a few specific conditions: - in 3rd or 4th gear - between 1500 and 2500 rpm - travelling between 50 and 65km/h - engine has to be reasonably cold or the outside temperature has to be cold, won't do it if it is a warm day or once the engine has warmed up. If anyone has any idea what could be causing this noise, or if they've had a similar problem could you please reply here or email me at [email protected] with any help it would be greatly appreciated. Scy