Does your automobile no longer run as well as it once did? Maybe you just purchased a used automobile that seems to be lacking in power.

Engines can lose power with time, leading to a noticeable decline in performance and decreased horsepower and efficiency. But why has performance fallen off recently? And how may it be avoided? 

In this article, we’ll examine the factors that contribute to engines losing power and offer some advice on how to enhance the efficiency and general condition of your car’s engine.

7 Potential Engine Power Loss Causes, and Solutions

There are a number of potential explanations if you’ve observed a recent loss of power or feel that your car’s engine is progressively degrading. These include both short-term problems that might result in an instant loss of power and long-term problems that could result in performance degrading over time.

Fuel filter clog

Fuel filters are made to stop debris and deposits from getting into the fuel system and into the engine. But they can clog up with time, just like any other filter, which lowers engine performance.

Because insufficient gasoline may get to the engine, blocked fuel filters can disrupt the combustion process. Redex System Cleaners are a great option for removing dirt and making sure your car’s fuel system is operating as it should.

Fuel Injector Blockages

In some cases, fuel filters are insufficient to keep particles and deposits out of the fuel system. And it is because of these deposits that the fuel injectors may get blocked, obstructing the delivery of the proper amount of gasoline to the combustion chamber.

Narrow nozzles on fuel injectors are readily blocked by dirt and other debris. When this occurs, they are unable to adequately distribute gasoline to the engine, which lowers engine performance and efficiency.

We once more advise using Redex gasoline additives to resolve this. With an inventive cleaning mix that dissolves grime and increases system efficiency, our diesel and gasoline system cleansers are particularly made to remove deposits from the fuel system.

obstructed air filter

Similar to its sibling, the fuel filter, the air filter serves a similar purpose and may also get clogged with debris, which affects how the engine runs. When the engine cannot receive enough air, the combustion cycle is hampered, which results in a loss of power that can be unexpectedly large.

If a clogged air filter is the source of your performance issues, you’re in luck because removing one is a simple procedure. All you have to do is take out the filter, which is located right up front and should be simple to get to, and thoroughly clean it. A vacuum cleaner can be used for this, but a pressurized airline or can works best.

Unclean Exhaust Pipe

A malfunctioning fuel injector, blocked air filter, or other factor that affects fuel combustion efficiency may also affect the exhaust system of your automobile. And this might result in a noticeable loss of power when the exhaust becomes blocked with debris and soot from the engine.

Keep in mind that an exhaust’s purpose is to eliminate engine fumes and reduce the quantity of pollutants your vehicle releases. When a blockage prevents it from doing this effectively, sensors in the system send a signal to the ECU (engine control unit), which immediately reduces engine power to avoid a harmful increase in emissions.

You might need to send your automobile to a specialist to get it evaluated because cleaning dirty exhaust is a difficult operation. However, by keeping up with engine maintenance and making sure that the air filter, fuel injectors, and fuel filters are maintained clean and functioning at their optimum, you can typically avoid this sort of problem.

defective spark plug

Now it’s time to examine the mechanical problems, beginning with a bad spark plug, which can result in an instant and considerable loss of engine power.

The electrical spark required for your engine to ignite is produced by spark plugs. When they malfunction, you can experience issues with the starter, misfiring, or poor acceleration; in these cases, the defective plug has to be found and replaced.

Read our thorough guide on maintaining spark plugs for optimum engine performance if you’re unsure how to replace a spark plug or want to learn more about the potential signs of a faulty plug.

Unreliable Sensor

Modern automobile engines are equipped with a variety of sensors that are intended to spot problems and maintain parts functioning properly. These sensors are crucial for sustaining power and performance since they provide data to the ECU and check anything from temperature to pollution.

Engine sensor problems are rare, but when they do occur, they can lead to a variety of problems, including decreased engine output. And to make matters worse, because the symptoms are so similar to those of other under-the-hood problems, it can be challenging to identify a failing sensor.

Making an appointment with a qualified mechanic is the best approach to determine whether your engine sensor is malfunctioning. Today, the majority of garages have specialized engine diagnostic equipment that can swiftly identify sensor issues, allowing you to get the issue fixed promptly and safely.

Various mechanical problems

There are several technical problems that might be to blame whether you’ve observed a sudden decrease in power, or the engine output of your automobile seems to be becoming worse over time, including:

defective fuel pump

a faulty ignition coils

defective EGR valve

defective turbocharger

We always advise sending your automobile to a qualified technician for additional testing and diagnosis if you’re unsure how to remedy the performance issue. Power problems are likely to worsen with time, therefore it will be beneficial to address the issue as soon as possible.

How to Prevent Loss of Engine Power

Even while it’s hard to completely prevent engine problems, there are steps you can take to lessen the probability of decreased performance and output. This comprises:

following manufacturer recommendations and having your automobile serviced at least once each year

Keeping the fuel system clear of debris and deposits that cause blockages by using Redex fuel additives

not disregarding performance drops; the sooner the issue is resolved, the less detrimental the long-term effects

regularly inspecting the air filter for buildup and clogs. Any quick fixes you may perform on your own can be beneficial in the long run.

keeping track of the engine’s general health, which includes doing frequent checks on the oil and coolant levels