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In the 2007 Ford F-150 4.6, the PCV valve can be found in the intake manifold on the left side. It's crucial to use high-quality oil to keep the engine running smoothly. Problems with the oil will eventually arise, such as engine knocking noises or even engine failure. A burning odor is a common sign of oil issues and should be checked promptly to avoid potential hazards like engine malfunction. Poor gas mileage can also result from bad oil, so it's important to change the oil every 5,000 to 10,000 miles to prevent engine problems down the road.
The PCV valve for the 5.4 engine is situated in the intake manifold on the left side of the vehicle, positioned behind and slightly below the throttle body.