subaru wrx 03

2003 SUBARU WRX
98,000 MILES • 4 CYL • AWD
Avatar
THATGUYIVXX
  • MEMBER
  • 1 POST
my engine sometimes knocks at startup...what could the problem be and how much would it cost approx. to fix?
Feb 23, 2011 at 3:05 PM
Advertisement
Avatar
ALEXFLYNN
  • MEMBER
  • 1 POST
WRX engines between 1997 and 1999 are the only engine where i have heard a similar problem it turns out to be a piston slap. This only happens on cold start up and when the engine is at warm running temp the noise disappears as the piston has expanded slightly with heat which makes a better fit.
Jan 25, 2013 at 7:50 AM