Knocking noise

1999 CHEVROLET TAHOE
200,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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SCULLY
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  • 3 POSTS
Knocking noise in engine, still drives fine, fluids are good maybe piston. Have a video I could forward.
Apr 11, 2017 at 5:28 PM
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SCULLY
  • MEMBER
  • 3 POSTS
In Ann Arbor Michigan area.
Apr 11, 2017 at 6:15 PM
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HMAC300
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  • 48,601 POSTS
what is oil pressure? if low or light comes on may be a bearing. piston noise will normally be cold then when warm it goes away. videos will not do much good. you can try removing plug wires one at a time if knock goes away then it is that cylinder. pretty much have a local mechanic check it out.
Apr 12, 2017 at 7:12 AM
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