Do I need a new turbo? I have done 340,000 km in my 2005 Toyota Prado and for the last six months I have experienced what sounds like extremely high revving at random times on the front passenger side of the engine when travelling at moderate speed. I have to stop the car and turn off the engine before it disappears and then I can start it again without the problem. It is now happening more frequently.
I doubt that you have a turbo problem, but you need to have a mechanic check to be sure. A mechanic would be able to find the cause of your problem and fix it.