ENGINE COMPRESSION?

  • Tiny
  • kamyszekm
  • 1996 Oldsmobile 98
  • 6 CYL
  • FWD
  • automatic
  • 1,310,000 miles

What is the exact engine compression suppose to be in a 1996 oldsmobile 98 with a 3.8?

Thursday, February 17th, 2011 AT 5:45 PM

1 Answer

  • Tiny
  • saturntech9
  • Expert
  • 28,824 posts

The lowest reading cylinder should not be less than 70% of the highest and no cylinder reading should be less than 689 kPa (100 psi). Perform compression test with engine at normal operating temperature, spark plugs removed and throttle wide open.

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Thursday, February 17th, 2011 AT 6:09 PM

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