A mechanic providing professional service to fix a Hyundai iLoad engine losing power.

Why Is Your Reconditioned iLoad Engine Losing Power?

You invested in a reconditioned engine for your trusty Hyundai iLoad, expecting reliable performance. But lately, you’ve noticed a concerning dip in power. Acceleration feels slow, overtaking is difficult, and that familiar punch from your iLoad seems to have gone. This can be disappointing, especially for a vehicle you depend on for work or carrying heavy loads.

There are many possible reasons for the losing power of your reconditioned iLoad engine. Discover the common causes and how to solve the issue.

Is there a problem with the fuel delivery system?

A fuel delivery system is a very important consideration for the performance of your engine. If it is not working properly, your iLoad might not be receiving the right fuel for the power it is supposed to deliver. You may consider the following possibilities:

  • A dirty fuel filter limits the flow of the fuel to the engine. This could make your vehicle feel jumpy, hesitant, and weak, especially when you hit the gas. Try changing your fuel filter with an original Hyundai part is a good option.
  • Fuel injectors spray fuel going to the engine cylinders. But in the long run, they can get blocked with deposits. This can mess up the fuel spray pattern. Also, this interferes with the mix of air and fuel and leads to power loss in your engine. There are available cleaning solutions, but sometimes, you need a professional to clean or replace the injector.
  • The fuel pump supplies fuel at the right pressure to the engine. A failing pump cannot sustain that pressure. This results in a lean fuel mixture (more air and less fuel) and there is a significant loss of power. Think of the pros and cons of doing the replacement yourself versus hiring experts. While replacing it might seem straightforward, a mechanic can diagnose the issue definitively and ensure proper installation.

Are there air intake issues affecting engine power?

The engine needs an exact air-fuel ratio or mixture for optimal combustion. If there’s an issue with the air intake system, the engine might be getting too much or too little air, causing power loss.

  • A dirty air filter can decrease power output by restricting clean air intake, which hinders combustion. Look in your owner’s manual for the recommended service intervals for air filter replacement.
  • Check for leaks in the air intake system, as they can let extra air into the engine. This disrupts the air-fuel mixture, causing hesitation, rough idling, and power loss. Take a look at the air intake hoses and connections for any cracks or loose clamps.  A mechanic can perform a smoke test to pinpoint any leaks definitively.

Could ignition system problems cause engine power loss?

Close-up of mechanic inspecting a spark plug, a potential cause of engine losing power.

The ignition system is in charge of producing the spark that lights up the air-fuel mix in the engine cylinders. If there’s an issue with this system, the engine might not start properly, causing power loss and other problems.

  • Faulty spark plugs: If the spark plugs are malfunctioning, they can cause weak sparks or misfires. This interferes with the combustion and leads to a recognisable power loss and possible rough idling. Changing spark plugs with the recommended type by manufacturers is a vital step for their maintenance.
  • Faulty ignition coils: The ignition coils supply the high voltage required to create a spark at the spark plugs. A failing coil can cause misfires in one or more cylinders, resulting in power loss and jerking when you hit the gas. It is advisable to replace faulty coils with genuine Hyundai engine parts.

Are there underlying engine issues causing power loss?

In some cases, the power loss might stem from more significant issues within the reconditioned engine itself. While less common, it’s important to consider these possibilities:

  • Sensor issues: Many sensors in the engine management system give important data to the engine computer. If the sensors in the engine management system start acting up, they can send the wrong info to the engine computer. Then the computer might mess up the air-fuel mixture or ignition timing. That could make the engine lose power, idle rough, or trigger the check engine light.
  • Internal engine wear: Even an engine that is reconditioned can have some internal wear, especially if it has travelled a significant distance. Damaged piston rings, valve guides, or other parts can cause compression loss, which greatly reduces the power of the engine. This needs an expert’s detection and repair.

What are additional tips for diagnosing a reconditioned iLoad engine power loss?

Illuminated check engine light on car dashboard, indicating potential engine problems including power loss.

  • Check engine light: If this light is turned on, it tells you that a problem is detected by the engine computer. You have to find out the illuminating check engine light causes right away. Having the fault codes scanned by a mechanic can provide valuable clues about the cause of the loss of power.
  • Consult your owner’s manual: Your Hyundai iLoad owner’s manual might have troubleshooting tips specific to engine power loss symptoms.
  • Notice performance changes: Are there any other changes in performance besides the power loss? This could include rough idling, increased fuel consumption, or difficulty starting. Observing these additional symptoms can help narrow down the possible causes.
  • Listen for unusual sounds: Pay attention to any unusual engine noises that might accompany the power loss. Understanding common Hyundai iLoad engine noises is important to determine the underlying problems. Knocking, pinging, or excessive ticking could indicate more serious internal engine issues.


A reconditioned engine should provide reliable performance for your Hyundai iLoad. But if your engine experiences a power loss, don’t ignore it. Early assessment and repair can prevent further damage and ensure your iLoad continues to be a reliable one you depend on.

While some basic problem-solving steps can be done at home, like checking the air or fuel filter, it’s recommended to seek help from a professional mechanic for a proper diagnosis and repair. They have the expertise and tools to tell the exact cause of the power loss and recommend the most appropriate solution.

Don’t let your reconditioned iLoad lose power: fix it today!

Here at Hyundai iLoad Engine Specialist, our expert mechanics are passionate about iLoad engines. We can detect the cause of the losing power of your engine in a fast and efficient manner, and get your iLoad back on the road running smoothly. Don’t wait until a minor issue becomes worse. Contact Hyundai iLoad Engine Specialist today and book your appointment for a thorough checking and repair.

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