Hi, newbie so be gentle! My Patrol (54 plate) is producing a noise from the engine, like a shrill type noise (not squeak), when I apply the accelerator, noise goes, as I release 'it's there', so between gear changes and on idle - gut feeling was belt of some kind but don't know where to look / check apart from BIG main belt that I can see behind radiator. That looks okay, noise os coming from more near the back, i.e. nearest to where engine meets where driver and passenger sit...sorry I am NOT a mechanic, as you can tell!! She's done many miles (95K) and has just been serviced, I am a bit anxious. My mate said that they just keep going Hope someone can help.