No compression cylinder number six

Tiny
SHERIBE
  • MEMBER
  • 2011 CHEVROLET AVALANCHE
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 114,000 MILES
What causes no compression?
Wednesday, July 12th, 2017 AT 5:16 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
A couple of things; a burnt valve or broken valve spring or a bad piston with a hole in it or burnt through as well as broken rings. See pictures.
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Wednesday, July 12th, 2017 AT 6:44 AM

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