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#1
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vacum leak or broken PVC valve
When my car motor is idling,vacum shaking between 13-14 inch
and same time PVC valve in the valve cover keep very fast and noisy rattle.In my frends car (440 mag like I have and same parts inside and outside)when idling vacum is steady 14 and PVC valve didnĀ“t shakin |
#2
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nice engine! don't know about the vac. problem, never happened to me.
to tell if there is a vacuum leak, spray either water or starter fluid around the intake and base of the carb. if the idle changes, you got a leak... good luck! |
#3
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Mines doing the same thing, in my newly rebuild 383? Did you end up replacing it? and did that solve the problem?
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#4
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This is easy enough to check. Disconnect the hose and cap it so you know there's no leak. See if your vacuum steadies up.
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