Just recently I've started to notice that my engine (Z22YH) seems to make a very audible 'wail' as I decelerate in 2nd gear.
It's hard to describe; imagine speeding up, going into 3rd but then slowing to turn into a side road but instead of braking just letting the car slow down by itself - once I change down into 2nd all I get is this noise, a bit like the engine revs being too high for the gear. If I put the clutch down the noise fades but doesn't disappear. It's only 2nd gear (which is typically clunky anyway). Any ideas? It's getting proper annoying now. TIA.

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