Subaru WRX Forum banner
1 - 6 of 6 Posts

·
Super Moderator (Actually a SuperSpy)
Joined
·
19,726 Posts
Has anyone here experienced "piston slap" noise coming out of their engine ? If so what did you do ?
Yes.

Nothing.

Subaru repaired STi engines with piston slap and the cars slapped again later anyway. Subaru just gave up.

So should you. If it’s bona fide piston slap and not rod knock it cannot be corrected for a simple reason: there’s nothing wrong. Longevity isn’t affected.

My WRX has done it for 300k km.
 

·
Super Moderator (Actually a SuperSpy)
Joined
·
19,726 Posts
Subarus tend to do it particularly on cold starts. If you've started an EJ stone cold and gotten under it and listened closely you must at some point have wondered how in the hell it runs at all. Yet it will. I stopped caring over a decade ago.
 

·
Registered
Joined
·
338 Posts
same thing with GM trucks and some LS motors a few years ago. all kinds of complaints but even if nothing done the motors keep on truckin, :)
 
1 - 6 of 6 Posts
Top