The PCV valve on most Ford Focus petrol engines is mounted on the valve cover and connected to the intake manifold by a vacuum hose. In many Focus models, it sits toward the rear of the engine on the passenger side, but the exact placement can vary by engine code and year.
Common PCV valve locations across Focus models
Most petrol Ford Focus engines share a similar setup: a small PCV valve mounted in or on the valve cover with a hose running to the intake. The exact position, however, can differ by engine family and generation.
- 2.0L petrol engines (Zetec/Duratec): PCV valve is typically located in the valve cover, often toward the rear passenger-side area, with a hose to the intake manifold.
- 1.6L and 1.8L petrol engines: PCV valve is usually on the valve cover as well, commonly near the back or side and connected to the intake system.
- 2.0L EcoBoost or other newer petrol variants: PCV valve configuration may vary; it is generally found on the valve cover or integrated into a valve assembly with a hose to the intake.
Note: Diesel-focused models or certain regional versions may use a different crankcase ventilation setup or omit a traditional PCV valve. Always check the specific engine manual for your vehicle’s exact configuration.
How to locate the PCV valve on your Focus
Below are practical steps to find and inspect the PCV valve on most petrol Ford Focus engines. The PCV valve is usually on the valve cover at the back or side and connected to a vacuum hose that leads to the intake.
- Park on a level surface, ensure the engine is cool, and disconnect the negative battery terminal to prevent electrical shorts.
- Open the hood and, if present, remove the engine cover to expose the valve cover.
- Locate the valve cover and trace the vacuum hose that runs from the intake manifold or throttle body to the valve cover; the PCV valve is the small cylindrical or plug‑like component at the end of that hose or mounted in a grommet in the valve cover.
- Carefully detach the hose from the valve and inspect the PCV valve for signs of clogging, sticking, or damage; also check the hose for cracks or splits.
- Install a new PCV valve if needed, reattach the hose securely, reconnect the battery, and start the engine to verify vacuum and absence of leaks.
If you still cannot locate the PCV valve, consult the repair manual for your exact Focus model year and engine code or contact a Ford service center. Variations exist across generations and markets.
Engine variants and PCV considerations
While the general principle remains the same, some engine families in the Focus lineup have slightly different PCV arrangements. Always confirm with the specific engine code (for example, 1.6L, 2.0L Zetec/Duratec, or EcoBoost) when servicing. A quick check of the service bulletin or factory manual for your car will confirm the correct location and replacement procedure.
Summary
In most Ford Focus petrol models, the PCV valve is mounted on the valve cover, with a vacuum hose connecting it to the intake manifold. The precise position—often toward the rear of the engine on the passenger side—varies by engine type and year. If in doubt, consult the vehicle’s service manual for your exact engine code or seek guidance from a qualified technician. Regular inspection of the PCV valve and associated hoses helps prevent rough idling, oil leaks, and related issues.