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  • dead cylinder

    2001 camaro. Started running really roughly, misfire code showed 300, multiple misfires.

    Checked fuel pressure, spark, etc. all fine.

    Did compression check and number 5 is totally dead, zero compression, all others are up to
    normal specs. No water in oil or oil in radiator. What does anyone think? Head gasket or
    stuck valve. HELP.

  • #2
    Re: dead cylinder

    Try squirting some oil into the cylinder through the spark plug hole and check the compression again. If it improves its the rings. If not, its probably a valve.

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    • #3
      Re: dead cylinder

      if you have no compression on one cylinder at all the valve is stuck open/burnt/bent

      the cylinder beside it should be a little lower than the rest as well though...

      2002 SOM Z28 Camaro - 12.9 @ 104 mph
      1996 3800 Camaro - 13.43 @ 100.77 mph


      Project Cars | How To Guides | Scratch Repair | Synthetic Oil

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      • #4
        Re: dead cylinder

        Thanx, I'll see what I can find.

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        • #5
          Re: dead cylinder

          Looks like a broken valve spring

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