If you are sure you got accurate readings on 3 & 5, you've got a problem. Next step could be a leak down test to see if it's leaking compression pat the valves or rings, but either way, it's time to break out the tools and start taking the engine down.

Could be blown head gasket since you have low compression on two adjacent cylinders.

Last edited by HemiSportFury; 09/04/19 03:07 PM.
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