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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Piston noise in an 02 4.6 SOHC

  • Thread starter Thread starter trinity_gt
  • Start date Start date Feb 14, 2004
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trinity_gt

10 Year Member
Jan 31, 2003
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Canada
Aug 31, 2011
#21
  • Aug 31, 2011
  • #21
Wow. Good use of the search FWIW, mine's doing just fine nearly 7 years on despite some cold piston slap. Nothing to worry about.

Yours doesn't sounds like the same piston slap noise. Slap usually occurs when cold and goes away -- or is greatly reduced -- when warm as the piston thermally expands and the clearances tighten up.

A valve tap -- a collapsed HLA, for example -- would make noise no matter if the engine is accelerating, floating or on the overrun. Noises that vary with load like this may point to a bearing or wrist pin.

You might try taking a video of the car making this noise and posting it...
 
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