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can you tell a headgasket is blown by the spark plug?
5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
uh oh... bad rings?? or blow by like the guy said?? it is only on like 6 psi.. I'll take closer pics of the valves guys I need to figure this out im trying to sell the car and don't want it to fall apart on the guy later down the road ya know.