Check the Positive Crankcase Ventilation (PCV) valve Ford F150

Ford F150 Location of the PCV valve - 2.7L engine shown (other models similar)

Location of the PCV valve — 2.7L engine shown (other models similar)

Note: To maintain efficient operation of the PCV system, clean the hoses and check the PCV valve at the intervals recommended in the maintenance schedule. For additional information on the PCV system, refer to Chapter 6.

1. The PCV valve is located in the right-side valve cover.

Note: When the PCV valve is removed, the retaining tabs on the valve are damaged and a new PCV valve must be installed.

2. Start the engine and allow it to idle, then disconnect the PCV hose from the PCV valve and feel for vacuum at the end of the hose. If vacuum is felt, then the hose connecting to the PCV valve is not clogged. Turn off the engine.

3. If little or no vacuum is felt at the hose, check for a plugged or cracked hose between the PCV valve and the intake manifold.

4. If a problem is suspected at the PCV valve, remove the valve with an appropriate sized wrench, then shake the valve freely by hand. If the valve does not rattle, this indicates that it is stuck open or closed and will need to be replaced.

5. If the valve is clogged, the hose may also be plugged. Remove the hose between the valve and the intake manifold and clean it with solvent. For plastic PCV hoses, make sure the solvent is safe for application on plastic.

6. After cleaning the hose, inspect it for damage, wear and deterioration. Make sure it fits snugly on the fittings.

7. Install a new PCV valve if removed. To install the PCV valve, insert the valve into the cover and rotate the valve until the retaining tabs click into place. Connect the PCV hose to the valve and intake manifold

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