Quote:
Originally Posted by Jim Scites
Check your PCV Valve, pull it out of the grommet, put your thumb over the open end and see if your idle changes. If so change your PCV Valve making sure it is a factory type.
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Of course the idle will "change" when you block-off a controlled, calibrated air leak into the fuel/air mixture.
Doesn't mean the PCV valve is defective. It means that there's less air getting into the manifold, but with the same amount of fuel being delivered.