Ford F150 PCV Valve Problems (5 Causes+solution)

The Ford F150 is an awesome vehicle, something you adore the most. It is frustrating to see when any of the inner parts go faulty.

The case can be that you are no longer feeling comfortable driving the car.

Here, we shall figure out the Ford F150 PCV valve problems

An external hot climate can cause the car inside to overheat. Improper fuel distribution, engine problems, poor acceleration, and oil leaks are common causes. By keeping the causes into consideration, you should repair accordingly. You can just install a new PCV valve into the system. 

We invite you to invest some time into understanding the causes elaborately. This will help you to settle down into applying proper fixes. 

Without stretching further, let us begin!

5 Common Causes Of PCV Valve Problems

The PCV valve is a component that makes the internal system of the car function. Proper distribution of gas happens when the PCV runs smoothly.

If there are problems arising with the PCV, this means the valve is aging. However, at any time, the valve can go wrong even when the car is new. 

There are many symptoms of a bad PCV valve. We will focus on the causes of the problems rather than the symptoms. 

Cause 1: Hot Temperatures

The cause is appropriate if you are driving constantly in a hot climate area. With climate-change issues surfacing throughout the world, heat waves during summers are often cruel. 

At a certain time, the internal system of your car may start to overheat. Since the function of the PCV valve is to deliver an even gas distribution. An overheating line can pressurize the valve causing it to default.  

This means the valve won’t be able to perform its function properly. Many problems around the engine area would surface. Gas emission from the exhaust can be a more probable scenario. 

Since the PCV valves are made of plastic, extreme temperatures may just melt the material. Check if the car engine faces difficulty cooling down at night. 

You would experience several symptoms the next day if not cooled properly. 

Cause 2: Improper Fuel Distribution

Improper fuel distribution may happen when the PCV valve is not working. However, the matter can be the other way round. 

The problem may come about due to a contaminated filter. Several inner compartments can get polluted. The oil and hydrocarbons would infect the valves and other parts. 

This usually happens when the system overheats or when it goes old. This can contribute to the failing PCV valve. As mentioned before, this can be the other way around as well. 

A bad PCV valve sound means the engine is letting you know of the problem. The ford’s warning lights would be on the next time you start the car.

The engine is not able to gather enough fuel for a smooth run. The faulty PCV valve is blocking the process. Or an overheated chamber is not allowing the valve to function.  

Cause 3: Engine Problems

Engine issues may arise from various angles. It can come about due to leaking engine coolant or blocked radiators. Certain electrical problems in the ford vehicle can cause the engines to die. 

We on various occasions point out that problems in some areas can cause disruptions in others. This is certainly the case with the inner compartments of the Ford F150. 

The Ford F150 PCV valve problem is a common scene. This is when several parts in the inner chamber are malfunction. 

It is good to ascertain then why a Ford engine fails faster?

The main reason for a fast engine failure is a lack of proper maintenance. There can be manufacturing defaults as well causing oil leaks or wear and tear. As the coolant system deteriorates the engine gets overheated and thus malfunctions. 

You can check the battery also if it’s in good shape. 

As a matter of fact, the PCV valve becomes a victim when all these issues arise. 

Cause 4: Poor Acceleration

This particular cause extends itself into a different scenario. For example, on a certain day while driving, suddenly you are not able to accelerate. 

Sensor issues and bad fuel delivery can cause bad acceleration. The energy supply is disrupted within the inner system. 

The materials that construct the PCV valve may not be able to handle the pressure. The pressure comes in terms of heavy airflow around the system. 

The 5.4 triton PCV valve location is surrounded by several connecting lines. As the airflow gets heavy and hot, the PCV valve would face difficulty. This is in terms of dealing with hot air pressure. 

It may just start leaking gas at any moment in time. 

Cause 5: Oil Leaks

The main function of the PCV valve is to prevent oil leaks. A faulty PCV valve may leak oil. But it can happen in other areas as well. 

Worn-out seals can cause the oil to start leaking. Perhaps the drain plug is faulty or has loosened itself from the connecting lines. 

It can be the case that oil is not dripping out from the vehicle. It is moving around the inner chamber causing moisture to form as it dries out. Since you have not checked your engine room for a while, anything can happen inside. 

You can ask how much oil can a bad PCV valve burn? The answer comes in a multi-faceted PCV valve scenario

As the oil gets into the inner edges, the device would go faulty. 

PCV Valve Replacement – Easy 5 Steps Solution

You would be seeing warning lights when anything goes wrong inside the vehicle. This includes the PCV valve as several other parts would also wear off. 

This is part and parcel of an extended ford 5.4 PCV valve problem. Any Ford model can have similar internal issues as the parts are similar. 

The first thing you would do is replace the PCV valve. This is before setting hands on other areas such as the engine or the battery. 

Step 1: Release The Hose

The first step is to locate the PCV valve. It would be sitting comfortably within the several connecting lines. 

See if there is an L-shaped cover at the end of the valve. You should be able to simply remove it. After that, comfort yourself enough to release the hose that connects the valve. 

It is an easy thing to do, you don’t need any outside help. 

Step 2: Detach The PCV Valve

If the PCV valve is secured with a grommet made of rubber, you can easily remove it. The point here is to disconnect the PCV valve. 

Make sure you wear gloves, removing the bolts would be more comfortable. Otherwise, you can use a wrench or a plier to do it smoothly. 

Make sure you have a firm grab while doing it. Explore the best option you got!

Step 3: Inspect The Hose

You can have a close inspection of the hose to determine the problem with the valve. It is good to change the hose if you see that the hose is rusty. 

This can happen due to moist formation over time. 

You can also change the clamps and grommets. Anything that is degraded inside the system should be changed. 

Step 4: Install The New PCV Valve

The fourth step is about installing the new PCV valve. First, put the valve in and screw it nicely, You should place the cover in after that. 

Make sure you avoid over-tightening, something may just go wrong while driving. 

A proper installment means you are able to remove the valve smoothly later. If you take the car for servicing, the technicians may want to have a look. 

Step 5: Fix The Hose Connection

The last step is to fix or repair the hose connection. There should not be any loose ends, being a little patient, do it properly. 

When everything is safe, go ahead and start the engine. Keep the engine on for a while to see if there is any leak or overheating.

If any problem persists, take the car straight to the garage. 


How do I know there is a problem with the PCV valve?

A faulty PCV valve will make the engine react. This means you may hear a buzzing sound coming from the engine while starting the car. A humming noise is also common when the PCV valve goes faulty. 

What happens when the PCV valve is clogged?

When the PCV valve is clogged, the oil would get pushed up in the combustion chamber. As a result, the oil would start burning inside the engine. Later the oil would go out through the exhaust pipe. 

What If I repair the PCV valve instead of replacing it?

The downside of repairing instead of replacing is that it won’t be durable. You may start facing the same problem after a few weeks or months. 


As you can see, the solutions to the Ford F150 PCV valve problems are easy. We hope you are able to find some success with this article.

By wishing you all the best, we are signing off!


Rob Dahm

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