Can I Drive My Volkswagen With A Faulty Fuel Pressure Regulator in Yardley?

The engine of different models of Volkswagen has different fuel qualities that can be measured by the changing fuel pressure. Due to these reasons, every internal combustion engine of the car has a well-functional fuel pressure regulator that can regulate the fuel pressure flow into the engine.

Many of the regulators are requiring assistance from the vacuum-operated mechanical diaphragms for changing the fuel pressure. Apparently, the electronic fuel pressure regulators are operating differently in your Volkswagen for distributing fuel to the engine. A small problem in the fuel pressure regulator can affect the engine's performance and cause many problems.

Purpose of the fuel pressure regulator

In general, the fuel pressure regulator in your Volkswagen is used for maintaining the proper fuel supply and fulfills the fuel demand of the engine. A well-functional pressure regulator can allow the fuel rail to build up enough fuel pressure to support the fuel injectors with a sufficient amount of fuel.

On the other hand, the fuel pressure regulator is also responsible for keeping the right mixture of air and fuel with a proper fuel pressure for both low revs and high revs. If the fuel pressure regulator of the car is failed, then the fuel is not reaching the injectors to flow into the engine for a smooth combustion process.

Signs of the bad fuel pressure regulator

The main function of the fuel pressure regulator in your Volkswagen is to adapt the right fuel supply to fulfill the fuel demand of the engine. When it is failed, you will notice the following signs in your car.

Fuel leaks

Moreover, the most common signs of failed fuel pressure regulators in your car are fuel leaks. Thus, the failed seals or diaphragm of the pressure regulator are causing fuel leakage in your Volkswagen which can lead to a serious safety hazard. Subsequently, it can affect the engine performance and produce a noticeable fuel smell from the engine.

Engine issues

Like the fuel leaks, the failed fuel pressure regulator is also causing engine issues in your car. When the pressure regulator has any problem, it will affect the fuel pressure and air/fuel ratio of the engine which can put an adverse effect on the engine's performance.

On the other hand, the failed fuel pressure regulator is also causing other engine problems in your car such as poor acceleration, engine misfiring, reduced fuel mileage, and loss of power issues. When it happens, bring it to a professional mechanic to get it diagnosed properly and fix it as soon as possible.

Smell of fuel from the dipstick

For the smooth movement of the car, its engine needs to run in the best possible conditions. Subsequently, the engine needs the right amount and good quality of engine oil for its efficient operation. If you notice the smell of fuel from the dipstick while checking the engine oil level, then make sure that the fuel pressure regulator in your car stops functioning.

Black smoke emitted from the exhaust

Another common sign of a bad fuel pressure regulator in your Volkswagen is the black smoke emitted from the exhaust system. If the pressure regulator is failing or leaking, then you will notice the black smoke emitting from the exhaust or tailpipe. Apparently, it can force the engine to run too rich and reduce its performance level.

Noisy fuel pump

A well-functional fuel pump is producing a humming sound when it is running in your car. But, if you hear any irritating noise from the car, especially in traffic jams, then ensure that the fuel pressure regulator is failed abnormally. So, inspect the fuel pump and fuel pressure regulator by a reputed mechanic whenever you are hearing whirring noises in the car.

Is it safe to drive with a failed fuel pressure regulator?

Generally, the fuel pressure regulator is responsible in your Volkswagen for supplying the fuel to the fuel tank and ensures that the fuel injectors are getting the proper fuel pressure for injecting the right amount of fuel into the engine. When the fuel pressure regulator is failed, then the engine is not performing the way it is and causes catastrophic damages that may lead to a fire.

So, due to these reasons, it is always advisable to stop driving the Volkswagen in this case. If you are currently living in Yardley and found that the fuel pressure regulator is failed, then bring it to a reputed local mechanic for diagnosing the causes behind the problem and replace it if needed.

We at Gleenwood Foreign car located in Morrisville, Pennsylvania have been serving the customers around the region since 1977. We service and repair models like Audi, BMW, Jaguar, Land Rover, Mercedes, MINI, Porsche, Volkswagen, and Volvo.