WHEN START UP TRUCK IN THE MORNINGI HEAR A NOISE...

  • Tiny
  • Anonymous
  • 1995 Ford F-150
  • 100,000 miles

When start up truck in the morning, I hear a noise that sounds like a bearing noise its not that noiceable through out the day, its noiceable at first start up in the morning

Wednesday, November 28th, 2012 AT 1:07 AM

1 Reply

  • Tiny
  • DrCranknWrench
  • Expert
  • 3,458 posts

If that is true it may be a wrist pin knock or piston skirt. The reason for this is the pistons are aluminum and have a different expansion rate and are loser when cold. Once warmer the tolerances are closer and don't make the noise.

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Wednesday, November 28th, 2012 AT 1:29 AM

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