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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Engine Controls - System & Component Testing - V6 & V8) >> Emission Systems & Sub-Systems >> Positive Crankcase Ventilation >> Avalon, Camry, Camry Solara, Highlander, Land Cruiser, Sequoia, Sienna, Tacoma & Tundra 4.7L V8

Avalon, Camry, Camry Solara, Highlander, Land Cruiser, Sequoia, Sienna, Tacoma & Tundra 4.7L V8

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove Positive Crankcase Ventilation (PCV) valve. See PCV VALVE LOCATION  table.
  2. Apply air pressure to PCV valve at bottom (cylinder head side) of PCV valve. Ensure air flows easily through PCV valve. Apply air pressure to PCV valve at vacuum side (intake manifold side) of PCV valve. Ensure air flows through PCV valve with some resistance. Replace PCV valve if valve does not function as described.
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