Why does the check engine light in my WRX STI turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your WRX STI testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why does my Subaru engine sound different?

Strange engine sounds can be a sign something’s off in your Subaru WRX STI. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a Subaru engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Subaru WRX STI engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I add water to my Subaru WRX STI radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your WRX STI when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a WRX STI engine to suddenly stop?

If your WRX STI car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Where can I go for Subaru WRX STI repair?

Your local Firestone Complete Auto Care offers Subaru WRX STI engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Reliable Repairs for 2015 Subaru WRX STI Engines

Learn about

2015 Subaru WRX STI Trim Options

Select your Subaru WRX STI trim level to learn more about Subaru-recommended engine repair. Use the following chart to find information.

H4/2.5L

2015 Subaru WRX STI Repair

Nothing stays the same forever. Even your Subaru WRX STI’s engine parts and components will change. We’re here to help when something stops working. Click on a repair below to learn more about 2015 Subaru WRX STI repairs.

We’re Trained to Care for Subaru WRX STI Engines

Subaru WRX STI drivers trust that their WRX STI will take them near and far. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go wrong on the road. If they do, you’ll have to find a dependable 2015 Subaru service center — quick! Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know Subaru WRX STI engines. Schedule an appointment if you're experiencing problems that could require engine repair. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Illuminated Check Engine Light on 2015 Subaru WRX STI

As soon as your WRX STI check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission control system that won’t go away on its own. Potential causes may include a faulty oxygen sensor, damaged spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your WRX STI in for an on-board diagnostic check and our expert techs will get the root of the problem. rattling sounds, burning smells, or a sinking feeling that something’s wrong.

Subaru WRX STI Engine Repair

When your Subaru WRX STI engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We never do any work without your sign-off. If a service can wait, we’ll make sure you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to provide you with the information you need to make an informed engine repair decision. By choosing Firestone Complete Auto Care for WRX STI engine repairs and you can feel confident knowing that we use Subaru-approved parts and components like the timing chain or belt, engine oil seal, fuses, or other parts.

Engine Q&A 2015 Subaru WRX STI

Why does the check engine light in my WRX STI turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your WRX STI testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my Subaru engine sound different? Strange engine sounds can be a sign something’s off in your Subaru WRX STI. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Subaru engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Subaru WRX STI engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I add water to my Subaru WRX STI radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your WRX STI when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a WRX STI engine to suddenly stop? If your WRX STI car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Where can I go for Subaru WRX STI repair? Your local Firestone Complete Auto Care offers Subaru WRX STI engine repair. Schedule an appointment today at one of our thousands of locations nationwide!