leonpoole

I have recently noticed a sort of whining sound in second gear.
It only does it when i am coasting along with no acceleration and when i accelerate it stops.
It only does it in second as ive tried it in all other gears and its fine.
Anyone else have this problem or know what it is

MarkEV

My 2003 WRX has done this since new (or at least I noticed it after about 2K miles) - exactly the same only in 2nd gear on the overun when coasting. It doesn't happen when it's cold only when its warmed up. I mentioned it last year at the 1 year service an they said nothing wrong.

It really annoys me, I was wondering if they all do this (4 wheel drive, 2 diffs and all that). I would be very interested to hear others views on this. I'm going to mention again at next service in September.

Mark

leonpoole

Yes thats exactly the same as mine. And when its cold i dont hear it either.

Well at least i wont worry as much now anyway although it will still annoy me

nunosm

Yap...same here....whine on decel...try changing the gearbox oil for motul/syntrax...if it gets louder, go back to stock oil. Oh...and try changing tyre pressure front/back (put a little more in the front than the pressures you've got and go for a spin)

MarkEV

Ok it's worth a try. If it was the tyres then why is it only in 2nd gear and only when hot? It sounds a bit diff(y) to me - from the front diff/gearbox area. What year is your car?

Thanks
Mark

leonpoole

Yours sounds identicle to mine mark. It sounds like it coming somewhere just after the front wheels like gearbox/diff area

MarkEV

What year is yours?

Mark

leonpoole

MY98

nunosm

my03....had that whine since day one....on decel is whinning like a baby, and with a little sound of gear mesh (hard to describe). Didnt grow didnt worsened, but got better (silence) with more front tire pressure. So, it whines on decel, it whines at 60mph cruising...ehehehe I think i'll change stock radio for a 1000W system!

nunosm

Oh...and cold is hard to listen. The whinning rear appears on hard cruising or 30m of city stop and go....(so also is heat related). Maybe the tolerances between gear theets or syncos are so tight, that whinning is a consequence (since at hot, material expand and those tolerances get smaller and smaller)

MarkEV

Thanks fo the info. If you put in 1000W system you wont hear that wonderful boxer burble!!!! What pressure shall I try in the front tyres?

Mark