Hey guys! Thinking about the 2020 Subaru Ascent? It's a popular SUV, but like any car, it has its quirks. Let's dive into some engine issues you might encounter and how to tackle them.

Understanding the 2020 Subaru Ascent Engine

The 2020 Subaru Ascent is equipped with a 2.4-liter turbocharged four-cylinder engine. This engine, while offering a good balance of power and fuel efficiency, has presented some common problems. Knowing these issues can help you better maintain your vehicle and address problems quickly if they arise.

One of the most discussed issues is related to oil consumption. Some owners have reported that their Ascents consume oil at a higher rate than expected. This can lead to low oil levels, potentially causing significant engine damage if not monitored regularly. Keep an eye on your oil levels and check for any unusual burning smells or visible leaks. If you notice excessive oil consumption, it's crucial to get it checked out by a qualified mechanic to prevent more severe engine problems. Regular oil changes using the recommended oil type and viscosity can help mitigate this issue, but it's still essential to stay vigilant.

Another potential problem involves the Ascent's direct injection system. Direct injection engines can be prone to carbon buildup on the intake valves. This buildup can restrict airflow, reducing engine performance and fuel efficiency. Signs of carbon buildup include rough idling, misfires, and decreased acceleration. To combat this, consider using high-quality fuel with detergents that help clean the fuel system. Periodic intake valve cleaning services can also prevent and address carbon buildup. It's a good idea to discuss this with your mechanic during regular maintenance visits to determine the best approach for your vehicle.

Finally, some owners have experienced issues with the Ascent's turbocharger. Turbochargers can fail due to various reasons, including oil leaks, overheating, or component wear. Symptoms of a failing turbocharger include a loss of power, unusual noises (such as whining or screeching), and the appearance of the check engine light. Turbocharger problems should be addressed immediately to prevent further damage to the engine. Regular inspections of the turbocharger and its associated components can help identify potential issues early. Ensure that the turbocharger receives proper lubrication and that the engine's cooling system is functioning correctly to prevent overheating.

Common Engine Problems with the 2020 Subaru Ascent

Alright, let's break down the nitty-gritty. Here are some typical engine problems you might see with the 2020 Subaru Ascent:

• Excessive Oil Consumption: This is a big one. Some owners have noticed their Ascent guzzling oil faster than expected. Keep a close eye on your oil levels and watch out for any weird burning smells.
• Carbon Buildup: Direct injection engines like the Ascent's can suffer from carbon buildup on the intake valves. This can mess with performance and fuel efficiency. You might notice rough idling or misfires.
• Turbocharger Issues: The turbocharger can sometimes have problems, leading to power loss or strange noises. Turbocharger failure should be addressed immediately to prevent further damage to the engine. Regular inspections of the turbocharger and its associated components can help identify potential issues early.

Excessive Oil Consumption

Excessive oil consumption is a significant concern for some owners of the 2020 Subaru Ascent. This issue can manifest in several ways, and it's crucial to recognize the signs early to prevent potential engine damage. Owners have reported needing to add oil more frequently than usual, sometimes between regular oil change intervals. This can be alarming, as consistently low oil levels can lead to increased friction and wear on engine components, potentially causing severe damage over time.

One of the first indicators of excessive oil consumption is the need to add oil more frequently than expected. If you find yourself topping off the oil every few weeks or after only a few thousand miles, it's a sign that something might be wrong. Keep a log of your oil levels and how often you need to add oil. This record can be helpful when discussing the issue with your mechanic. Another sign to watch for is blue-tinted exhaust smoke, which indicates that oil is being burned in the combustion chamber. This can be more noticeable when starting the engine or during acceleration. Additionally, be attentive to any unusual burning smells, which can also suggest that oil is leaking and burning on hot engine parts.

Several factors can contribute to excessive oil consumption in the Ascent. One common cause is worn or damaged piston rings. The piston rings seal the combustion chamber, preventing oil from entering and being burned. If these rings are worn, oil can leak past them and be consumed during combustion. Another potential cause is a faulty positive crankcase ventilation (PCV) valve. The PCV valve regulates pressure in the crankcase and prevents oil from being forced out. If it fails, it can lead to increased oil consumption. Additionally, oil leaks from gaskets or seals can contribute to oil loss. Regularly inspecting these components can help identify and address the underlying causes of excessive oil consumption.

To mitigate excessive oil consumption, there are several steps you can take. First, ensure that you are using the correct type and viscosity of oil recommended by Subaru. Using the wrong oil can exacerbate oil consumption issues. Regularly check your oil levels and top off as needed to maintain the proper level. Consider using a high-quality synthetic oil, which can provide better protection and reduce oil consumption. If the problem persists, consult a trusted mechanic. They can perform a thorough inspection to identify the root cause of the oil consumption and recommend appropriate repairs, such as replacing worn piston rings or repairing oil leaks. Addressing this issue promptly can prevent more serious engine damage and prolong the life of your Ascent.

Carbon Buildup on Intake Valves

Carbon buildup is another common issue affecting the 2020 Subaru Ascent, particularly due to its direct injection engine. Direct injection engines inject fuel directly into the combustion chamber, bypassing the intake valves. As a result, the intake valves don't get cleaned by the fuel's detergents, leading to carbon deposits accumulating over time. This buildup can restrict airflow, reducing engine performance and fuel efficiency. Recognizing the symptoms of carbon buildup early is crucial for maintaining your Ascent's performance.

Several signs indicate that carbon buildup may be affecting your engine. One of the first symptoms is often a rough or unstable idle. The engine may vibrate or hesitate when idling, and the RPMs may fluctuate erratically. Another sign is decreased engine performance, such as reduced acceleration or a noticeable lack of power, especially when climbing hills or carrying heavy loads. You may also experience misfires, which can cause the engine to stumble or jerk. These misfires can trigger the check engine light. Keep an eye on your fuel efficiency as well; a significant drop in MPG can indicate that carbon buildup is restricting airflow and affecting combustion.

The primary cause of carbon buildup in direct injection engines is the lack of fuel washing over the intake valves. In traditional port injection systems, fuel is sprayed onto the intake valves, which helps to clean them and prevent carbon deposits from forming. Since direct injection systems bypass this cleaning action, carbon deposits from oil vapors and exhaust gases accumulate on the valves. Over time, these deposits harden and restrict airflow, leading to the symptoms mentioned above. The quality of fuel used can also play a role; lower-quality fuels may contain more impurities that contribute to carbon buildup.

To prevent and mitigate carbon buildup, there are several strategies you can employ. First, use high-quality fuel with detergents that help clean the fuel system. These detergents can help dissolve some of the carbon deposits and keep the intake valves cleaner. Consider using a fuel additive designed to clean the fuel system and intake valves periodically. These additives can help break down existing carbon deposits and prevent new ones from forming. Another effective method is to have the intake valves professionally cleaned. Mechanics can use specialized tools and cleaning solutions to remove carbon deposits without damaging the engine. This service, often called intake valve cleaning or walnut blasting, can restore engine performance and fuel efficiency. Regular maintenance, including air filter replacements, can also help reduce the amount of contaminants entering the engine and contributing to carbon buildup. Addressing carbon buildup proactively can help maintain your Ascent's performance and prevent more serious engine problems.

Turbocharger Issues

Turbocharger issues can also affect the performance and reliability of the 2020 Subaru Ascent. The turbocharger is a critical component that increases engine power by forcing more air into the cylinders. However, turbochargers are complex devices that can fail due to various reasons, including mechanical wear, oil leaks, and overheating. Recognizing the signs of a failing turbocharger early can help prevent further engine damage and ensure timely repairs.

Several symptoms indicate that the turbocharger in your Ascent may be experiencing problems. One of the most noticeable signs is a loss of power, especially during acceleration. The engine may feel sluggish, and you may notice that it takes longer to reach higher speeds. Another common symptom is unusual noises coming from the engine compartment, such as whining, screeching, or whistling sounds. These noises often become more pronounced when the turbocharger is under load. You may also notice blue or gray smoke coming from the exhaust, indicating that oil is leaking into the turbocharger and being burned. Additionally, the check engine light may illuminate, and diagnostic codes related to the turbocharger may be stored in the engine control unit (ECU).

Several factors can contribute to turbocharger failure. One common cause is oil starvation, which can occur if the turbocharger is not receiving enough lubrication. This can lead to excessive wear on the turbocharger's bearings and other internal components. Oil leaks can also cause turbocharger problems by reducing the oil pressure and volume available to lubricate the turbocharger. Overheating is another significant cause of turbocharger failure. Excessive heat can damage the turbocharger's components, leading to reduced performance and eventual failure. Additionally, foreign object damage, such as debris entering the turbocharger, can cause significant damage to the turbine blades.

To prevent and address turbocharger issues, there are several steps you can take. First, ensure that you are using the correct type and viscosity of oil recommended by Subaru. Regular oil changes using high-quality synthetic oil can help maintain proper lubrication and prevent oil starvation. Periodically inspect the turbocharger and its associated components for signs of leaks or damage. Check the hoses and connections to ensure they are secure and free from cracks or leaks. Monitor the engine's temperature and ensure that the cooling system is functioning correctly to prevent overheating. If you suspect that your turbocharger is failing, consult a qualified mechanic. They can perform a thorough inspection to diagnose the problem and recommend appropriate repairs, such as replacing the turbocharger or repairing oil leaks. Addressing turbocharger issues promptly can help maintain your Ascent's performance and prevent more serious engine damage.

Solutions and Maintenance Tips

Okay, so what can you do about these potential issues? Here are some tips to keep your 2020 Subaru Ascent running smoothly:

• Regular Oil Checks: Seriously, check your oil level regularly. Like, every week or two. It's super easy and can save you a ton of grief.
• Use Quality Fuel: Opt for top-tier gasoline. It has detergents that can help keep your fuel system clean.
• Scheduled Maintenance: Stick to the recommended maintenance schedule. This includes oil changes, filter replacements, and inspections.
• Consider a Catch Can: For the oil consumption issue, some owners install an oil catch can to prevent oil vapors from recirculating into the intake.

Regular Oil Checks

Regular oil checks are essential for maintaining the health and longevity of your 2020 Subaru Ascent engine. Checking your oil level regularly, ideally every week or two, allows you to monitor oil consumption and detect potential problems early. Low oil levels can lead to increased friction and wear on engine components, potentially causing significant damage over time. By proactively monitoring your oil, you can ensure that your engine is properly lubricated and prevent costly repairs.

To check your oil level, park your Ascent on a level surface and allow the engine to cool down for at least 10 minutes. Locate the oil dipstick, which is usually brightly colored and marked with an oil can symbol. Remove the dipstick and wipe it clean with a lint-free cloth. Reinsert the dipstick fully into its tube and then remove it again. Observe the oil level on the dipstick. It should be between the minimum and maximum marks. If the oil level is below the minimum mark, add oil until it reaches the proper level. Be sure to use the correct type and viscosity of oil recommended by Subaru. Regular oil checks can help you identify excessive oil consumption early, allowing you to address the issue before it causes more serious engine problems.

In addition to checking the oil level, also pay attention to the condition of the oil. Clean oil should be light brown or amber in color. If the oil appears dark, sludgy, or contains metal particles, it may be a sign of engine problems. Dark, sludgy oil indicates that the oil has broken down and is no longer providing adequate lubrication. Metal particles in the oil suggest that there is excessive wear occurring within the engine. If you notice any of these issues, consult a qualified mechanic. They can perform a thorough inspection to diagnose the problem and recommend appropriate repairs. Regular oil checks, combined with attention to the condition of the oil, can help you maintain your Ascent's engine in optimal condition.

Use Quality Fuel

Using quality fuel is another important step in maintaining the performance and reliability of your 2020 Subaru Ascent. Top-tier gasoline contains detergents and additives that help clean the fuel system and prevent carbon buildup on the intake valves. These detergents can dissolve existing carbon deposits and prevent new ones from forming, helping to maintain optimal engine performance and fuel efficiency. By opting for top-tier gasoline, you can reduce the risk of carbon buildup and ensure that your engine runs smoothly.

Top-tier gasoline is available at many major gas stations and is designed to meet specific standards for detergency and cleanliness. These standards require that the gasoline contains a minimum level of detergents that can effectively clean the fuel system and prevent carbon deposits from forming. Using top-tier gasoline can help prevent rough idling, misfires, and decreased acceleration caused by carbon buildup. In addition to preventing carbon buildup, top-tier gasoline can also improve fuel efficiency by ensuring that the engine is running optimally. By keeping the fuel system clean and preventing carbon deposits, top-tier gasoline can help you achieve better gas mileage and save money on fuel costs.

Scheduled Maintenance

Scheduled maintenance is crucial for keeping your 2020 Subaru Ascent in top condition and preventing major engine problems. Sticking to the recommended maintenance schedule ensures that your vehicle receives the necessary services and inspections at the right intervals. This includes oil changes, filter replacements, fluid checks, and other essential maintenance tasks. By following the scheduled maintenance, you can identify potential problems early and address them before they cause more serious damage.

The maintenance schedule for your Ascent can be found in the owner's manual. It typically includes regular oil changes, which are essential for maintaining proper engine lubrication. Oil changes should be performed at the recommended intervals, usually every 6,000 miles or six months, depending on your driving conditions. Filter replacements, including air filters and fuel filters, are also important for maintaining engine performance. Clean air filters ensure that the engine receives adequate airflow, while clean fuel filters prevent contaminants from entering the fuel system. Fluid checks, including coolant, brake fluid, and transmission fluid, are also part of the scheduled maintenance. These fluids should be checked and topped off as needed to ensure that they are at the proper levels. Regular inspections of belts, hoses, and other components can help identify potential problems early and prevent them from causing more serious damage. By following the scheduled maintenance, you can keep your Ascent running smoothly and prevent costly repairs.

Consider a Catch Can

Considering an oil catch can is a proactive step to mitigate potential issues in your 2020 Subaru Ascent. An oil catch can is a device that installs in the PCV (Positive Crankcase Ventilation) system to capture oil vapors and contaminants before they can recirculate into the intake manifold. This helps to prevent carbon buildup on the intake valves and reduce oil consumption. By installing an oil catch can, you can keep your engine cleaner and maintain optimal performance.

Oil catch cans work by capturing oil vapors and contaminants that are vented from the crankcase through the PCV system. These vapors are routed through the catch can, where they condense and collect in a container. The clean air is then routed back to the intake manifold. By preventing these vapors from recirculating, the catch can helps to reduce carbon buildup on the intake valves and prevent oil from being burned in the combustion chamber. This can improve engine performance, fuel efficiency, and reduce the risk of engine damage. Installing an oil catch can is a relatively simple modification that can provide long-term benefits for your Ascent's engine.

Conclusion

So, there you have it! The 2020 Subaru Ascent is a great vehicle, but it's good to be aware of these potential engine issues. With proper maintenance and a little vigilance, you can keep your Ascent running strong for years to come. Drive safe, guys!