I have an intermittent squeak/squeal noise when driving which I am trying to figure out the source of. Only way to describe the sound is like a brake/metallic squeal, but it doesn't occur when braking at all. I've also checked all the brakes out and lubes contact points etc, with no effect.
It happens consistently just before or at the shift point on light acceleration, between 2000 and 2500rpm. Happens when the car is hot or cold and doesn't happen when you free rev the engine to that point.
I know it's not the belts (as I've changed them).
Cars an auto...