Knocking noise

2003 FORD WINDSTAR
168,000 MILES
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BARRON ALLIEN PEGGY
  • MEMBER
  • 1 POST
All these have been put into still knocking. We have put new push rods, crank shaft bearings, rod bearings, oil pump, timing chain, gears and lifters. Still making this sound.
May 13, 2018 at 10:38 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good afternoon.

The other thing it could be is a broken piston. You can tell by removing a spark plug wire one by one and see if the knock either goes away or goes down in intensity.

Also, a cracked flywheel will also cause a noise. It breaks from a failed main bearing. Since you replaced them, I would still check then anyway.

Roy

https://www.2carpros.com/articles/engine-noises
May 14, 2018 at 6:40 AM
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