Mechanics

LOSS OFF COMPRESSION IN CYLINDER 3

2001 Ford F-150 • 160,000 miles

Note I change Ignition coil and plug. What could be the cause of a 26% loss of compression on cylinder 3. Fuel injection checked out ok
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Jazmanski
February 4, 2012.




If you lost compression on that cylinder, either you have an issue with a valve, head gasket, or rings.



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