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2007
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Xterra Off Road, Automatic
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Repair and Diagnosis
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Engine Control System - Introduction
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Positive Crankcase Ventilation
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Component Inspection
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PCV Valve Ventilation Hose
PCV Valve Ventilation Hose
Check hoses and hose connections for leaks.
Disconnect all hoses and clean with compressed air. If any hose cannot be freed of obstructions, replace.
Fig 1: Checking PCV Valve Ventilation Hose And Hose Connections For Leakage
Courtesy of NISSAN NORTH AMERICA, INC.