1984 Camaro Z28 Leakdown Test - Pressure Points
Spark plug logistics on a third-gen Camaro require that cylinders 6 and 8 be accessed from beneath the car. Yes, it was a pain, but we learned something from this close-quarters experience; we could hear the sound of pressurized air in the oil pan, indicating that air was getting past the rings. If we'd drained the oil after warming up the car, we might have even felt air exiting from the drain plug hole. It's something else to think about as you play leakdown detective with your own ride.
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