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Old 10-13-2024, 04:31 PM
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M54 Engine Lost Compression on Cylinder 6

Well I guess it was a good run.
Driving up to the Gem Mining place in Hendersonville NC today and the engine lost power and had a misfire on #6. Limped back home on 5 cylinders, swapped coil packs, spark plugs, no change.

Hooked the compression gauge up and only have about 12-15psi on cyl#6. For comparison, cylinder 2 had about 138psi.

So I guess the rings went, hole in piston, or an exhaust/intake valve burnt. Thoughts?
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