Where is the PCV valve on a Ford Fiesta?

The PCV valve is typically mounted on the engine’s valve cover as a small cylindrical valve connected to the intake via a vacuum hose. The exact spot depends on the Fiesta’s engine type and year, but you’ll usually find it on the valve cover toward the rear or side with a single hose running to the intake manifold.

Ford Fiesta models have used several engines over the years, including the 1.6-liter Duratec Ti-VCT, the 1.4-liter Duratec, and the 1.0-liter EcoBoost. In all cases, the PCV valve sits on the valve cover and is linked to the intake by a vacuum hose, though the precise orientation can vary by engine family. If you’re unsure of your exact location, consult the service manual for your year and engine code or search for your model’s PCV layout with its VIN.

Common PCV valve locations on Fiesta engines

Engine variants and approximate spots

Because the Fiesta has used multiple engines, the PCV valve is usually on the valve cover, but the side and orientation can differ. Use this as a guide and visually confirm the valve on the cover with a hose to the intake.

• On most Duratec/Ti-VCT engines used in Fiests, the PCV valve is mounted directly into the valve cover and connected to the intake manifold by a vacuum hose. The typical occurrence is on the valve cover toward the rear of the engine.


• On EcoBoost (1.0L) or newer variants, the PCV valve is still on the valve cover but may sit along the side or front edge, accessible from the top or near the throttle body depending on the exact year and layout.


• Across all these engines, the PCV valve is the small cylindrical plastic component that seats into a grommet or threaded fitting on the valve cover with a hose attached to the intake.

In short, look for a small cylindrical valve on the engine’s valve cover with a hose running to the intake. If you can’t locate it, check the owner’s manual or a service bulletin for your exact year and engine code, or ask a qualified technician to identify the valve’s precise position.

Replacing or cleaning the PCV valve on a Fiesta

Tools and parts you’ll need

Before you start, verify the correct replacement part for your engine code. Then gather the basic tools and components listed here.

• New PCV valve compatible with your Fiesta’s engine code


• Small hose clamps or fittings (if the old ones are damaged)


• Basic hand tools (socket set, screwdrivers) and safety equipment


• Rags and a catch basin for any spilled oil or sludge

Replacing the PCV valve generally follows these steps: locate the valve on the valve cover, disconnect the vacuum hose, remove the old valve, inspect the hose and grommet, install the new valve, reconnect the hose, and ensure clamps are secure. After replacement, start the engine and check for smooth idle and vacuum hose leaks. If the check engine light returns, recheck connections or consult a technician.

Summary

For a Ford Fiesta, the PCV valve is typically housed in or on the valve cover and connected to the intake via a vacuum hose. While the general arrangement is consistent, the exact location varies by engine type and model year. Regular inspection and timely replacement help prevent rough idle, oil leaks, and other symptoms associated with a clogged or failing PCV valve.

What are the symptoms of a failing PCV valve?

Symptoms of a failing PCV valve include rough idling, engine misfires, and a rough acceleration, as well as increased oil consumption and visible oil leaks. You might also notice a whistling or hissing sound from the engine, a lit check engine light, and discolored exhaust smoke.
 
Performance issues

• Rough idling and acceleration: A failing PCV valve can cause an imbalance in the air-fuel mixture, leading to these issues. 
• Engine misfires: A faulty valve can disrupt the air-fuel mixture, causing the engine to misfire. 

Engine and oil problems 

• Increased oil consumption: If the valve is stuck open, it can suck excessive oil into the intake manifold. 
• Oil leaks: Pressure buildup from a clogged valve can force oil out of seals and gaskets, causing leaks. 
• Discolored exhaust smoke: This can be a sign of oil being burned in the engine. 

Other indicators

• Noises: A hissing or whistling sound coming from the engine is a common symptom. 
• Check engine light: The check engine light may come on due to the various issues a faulty PCV valve can cause. 
• Increased fuel consumption: This can occur if the valve is stuck open and causing performance issues. 

What is the most common problem with the Ford Fiesta?

Common Problems with Ford Fiestas

1. Transmission Problems. Owners of this hatchback report a significant number of transmission problems, especially where models with PowerShift six-speed automatic transmission are concerned.
2. Engine Problems.
3. Interior Accessories Problems.
4. Wider Powertrain Problems.

Where would a PCV valve be located?

The PCV (Positive Crankcase Ventilation) valve is most commonly located on the engine's valve cover or intake manifold, connected to a hose that leads to the intake manifold. You can find it by looking for a hose attached to the valve cover or oil fill tube, which then connects to the intake manifold.
 
This video shows the location of the PCV valve on a Toyota engine: 37sCruisin' With GregYouTube · Mar 11, 2023

• Typical location: Look on the valve cover or the intake manifold itself. It's a maintenance item that is often accessible from the top of the engine. 
• Connection: It's connected by a hose to the intake manifold. Sometimes, it is directly integrated into the oil fill tube or on top of the valve cover. 
• How to find it: Trace the vacuum hose from the intake manifold to where it connects to the engine. The valve will be at or near that connection point. 
• Example: On some engines, the valve is on the driver's side, while on others it might be on the passenger side. 

This video demonstrates the location of the PCV valve on a Chevrolet engine: 57s1ROADYouTube · Dec 8, 2018

Where is the PCV valve on a 2006 Ford Fiesta?

PCV valve is located in the oil separator, which you need to remove the intake manifold to get to. You can buy all this parts, plus maybe gaskets for intake mani.