I have a new impreza wrx with 1200 miles on the clock.
If i accelerate up to 65mph in fifth gear and then take my foot off the gas and drift down to 60mph a slight rattly bearing sound noise occurs. If you move away from 60mph either up or down it disapears. At my first oil change at 1000miles the dealer took it for a test drive and could not hear anything.
Has anybody experienced this ?
I think i will try another dealer my previous 98 impreza ran as sweatly as a nut for 90000 miles with out any noises what so ever.

 

Dose this happen when the engine & trans are at full operating temp?

If you push the clutch pedal all the way in at this speed, dose the noise go away?

 

Hay thanks for your reply just come back from a soccer game.
T his happens more or less straight away. T he noise is still there when you depress the clutch. It does seem to be getting a lot quiter and sometimes disapears but then comes back straight away.
My traveling is mainly on motorways. Could it be a wheel balancing or wheel bearing fault or part of the exhaust giving a secondary sound somewhere.
Very strange