Good day to All, need a little help please, after i took my car for my100k service, i heared a whining noise. This sound can only hear it when turning on a slow speed or when start moving (right/left turn) Haven't encounter this before. Any idea's what is the cause of this? Need advice please.

Thanks
Juls

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Power steering pump on the way out. Have you checked your fluid level?

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09 Evo X

Either that or the belt might be slipping.

Already check the fluid level and it as above the maximum level. Will this be the reason?

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Significant other in passenger seat?

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Silver GC8 | RallyArmor
"Perth WRX, home of the cynical." - TROLLEY

Any bubbles in the power steering fluid or shuddering at same time as the noise.

There were three faults found with the car when the 100k service was done that contributed to the noise.

1/ The Whiteline lower ball joints had excessive freeplay in them. They are not available as a separate part so your original Subaru Ball joints and tie rod ends were refitted as this was a safety issue and was the cause of the clicking. (it appears the Whiteline ball joints are not as durable as Subaru ones, a large percentage have freeplay after only 12 months)

2/ The DCCD (centre diff inside the gearbox) has partially siezed. Even without any voltage there is friction causing the 'moaning' noise when the front and rear wheels are rotating at different speeds (ie; when turning sharply)

3/ The button clutch fitted (by someone else) is excessively harsh, shudders and is noisy too.

Item 1 has been rectified.
Items 2 and 3 can be rectified but both require significant expense and really are not safety or performance limiting faults. My advice is to live with the noise until the clutch is worn out, renew it with a more sensible clutch and while the gearbox is out rectify the centre diff problem.

On the subject of the Whiteline roll centre ball joints not having a long service life and not being available as a separate part, I have contacted the supplier and expressed my concerns to their durability.........zero fucks were given.

Do you see or know of the same problem with the Whiteline roll centre ball joint for other models Doug, or is this exclusively a problem with The Subaru replacement part?

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Air is for pussies.

I would expect they used the cheapest supplier they could find. I have no experience with any other manufacturers so can't comment on the failure rate but in my opionion on Subarus they wear out much faster than the OE part.