alpinecarbon

Hi there,
i have a newbe question about my uk 07 hawkeye wrx. My car has less than 10k miles and is standard powerwise.
It has a light 'tappety' noise from mainly drivers-side under bonnet which sounds a bit like a old vw beetle but quieter, this only happens below 3.5k rpm
under part throttle accelleration, noticable with window down in lower gears.
i thought it might be mild pre-ignition so i took it to subaru with warranty left, they checked and said the noise was normal for subaru's

I am used to nissan 200sx's and skylines, they are quiet and just purr under light load, so i am a little suspicious that maybe i should look for a leak on the manifold..

this isnt a big issue but i would really like to know if anyone else has this problem on theirs or maybe fixed this problem

nick172sport

iTrader: (6)

not normal loose heat shield or worse pm splitpin he will help you out or put the same question in general technical

alpinecarbon

cheers nick,
i have checked the turbo heat shield and all seemed tight, my concern is this could be mild piston slap or valve gear?? The idle is a little uneven after a hard run also, normal? .. i'll give splitpin a pm

mgcvk

Piston slap at 10k?

alpinecarbon

I really hope its not piston slap, and dosent really sound that way but im new to subarus and u read some scary stories about these 2.5l engines (mainly 08 onwards)
I only have 3 months sub' warranty left so need to confrm the noise is not normal. can anyone recommend a scooby specialist nr hertfordshire, thanks

Benno2

Have at a look at the ticking noise described in post 36 of the attached and the links to NASIOC it may help.

https://www.scoobynet.com/scoobynet-...my05wrx-2.html

alpinecarbon

thanks benno2 i think youve nailed it!
their description is totally familiar, im off to check the tension on my wg actuator