Subaru WRX 03

Tiny
THATGUYIVXX
  • MEMBER
  • 2003 SUBARU WRX
  • 4 CYL
  • AWD
  • 98,000 MILES
My engine sometimes knocks at startup. What could the problem be and how much would it cost approx. To fix?
Wednesday, February 23rd, 2011 AT 3:05 PM

1 Reply

Tiny
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.
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Friday, January 25th, 2013 AT 7:50 AM

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