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3. After allowing approximately one minute for crankcase pressure to reduce, the paper should draw up against the hose with noticeable force. If the engine does not draw the paper against the grommet after installing a new 4. Turn the engine off. Remove the PCV valve from intake manifold. The valve should rattle when shaken. 5. Replace the PCV valve and retest the system if it does not operate as described in the preceding tests. Do not attempt to clean the old PCV valve. REMOVAL 1. Remove the engine cover. 2. Remove the hose from the PCV valve. PM EVAPORATIVE EMISSIONS 25 - 21 |