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Re: 1970 Chevrolet C20 Pickup - Motor Leaking Oil
If a PCV valve rattles when shook, it means the valve is free to move. It doesn't tell you if the valve is seating or if the spring is weak or broken. Spring problems are rare, but PCV valves get coked up all the time.
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~Steven
'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper
Simi Valley, CA
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