Genuine Ford Crown Victoria PCV Valve

Ford Crown Victoria PCV Valve Parts Questions & Experts Answers

• Valve Assembly
  7L3Z-6A666-A
  Q: What is the purpose of the Positive Crankcase Ventilation (PCV) system and PCV Valve on Ford Crown Victoria?

  A: The Positive Crankcase Ventilation (PCV) system reduces emissions by circulating fresh air from the air cleaner through the crankcase, mixing with gases, and rerouting through a PCV valve to the intake manifold. The system includes a PCV valve, a fresh air inlet, and vacuum hoses. The PCV valve restricts flow to maintain idle quality. If anything odd occurs, the system allows excess gases to flow back into the air cleaner. It is required that regular checking and replacement of the PCV valve happens.
• Valve Assembly
  2L3Z-6A666-AA
  Q: How to check the PCV Valve on Ford Crown Victoria?

  A: To maintain efficient operation of the PCV system, clean the hoses and check the PCV valve at the intervals recommended in the maintenance schedule. The PCV valve is located in the right (passenger's side) valve cover. Check the valve by first pulling it out of the valve cover. Late models are equipped with push-connect fittings on the PCV Hoses - rotate the tab to unlock the fitting. Shake it - if it rattles, reinstall it in the cover. Start the engine and allow it to idle, then disconnect the PCV hose from the air cleaner housing and feel for vacuum at the hose. If vacuum is felt, the PCV valve/system is working properly. If no vacuum is felt, the oil filler cap, hoses, or valve cover gasket may be leaking or the PCV valve may be bad. Check for vacuum leaks at the valve, filler cap, and all hoses. Pull straight up on the valve to remove it. Check the rubber grommet in the rocker arm cover for cracks and distortion. If it's damaged, replace it. If the valve is clogged, the hose is also probably plugged. Remove the hose between the valve and the intake manifold and clean it with solvent. After cleaning the hose, inspect it for damage, wear, and deterioration. Make sure it fits snugly on the fittings. If necessary, install a new PCV valve. Install the clean PCV system hose. Make sure that the PCV valve and hose are secure.