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What is the most common problem with a Subaru Outback?


The Subaru Outback is a popular choice for drivers who value reliability, versatility, and all-wheel drive performance. However, like any vehicle, it has its share of common issues. In this article, we’ll explore the most frequent problem reported by Subaru Outback owners and provide insights on how to address it effectively.


Common Problem: Head Gasket Failure


One of the most well-documented issues with Subaru Outbacks, particularly models from the late 1990s to the early 2010s, is head gasket failure. This problem is prevalent in Subaru’s 2.5L engines and has been a source of frustration for many owners. The head gasket is a critical component that seals the engine block and cylinder head, preventing oil and coolant from mixing. When it fails, it can lead to significant engine damage if not addressed promptly.


Why Does Head Gasket Failure Occur?


There are several reasons why head gasket failure is a recurring issue in Subaru Outbacks:



  • Engine Design: Subaru’s boxer engine design, while innovative, places additional stress on the head gaskets due to the horizontal layout of the cylinders.

  • Material Weakness: Earlier models used gaskets made from materials that were prone to wear and failure over time.

  • Thermal Cycling: The engine’s heating and cooling cycles can cause the gasket to expand and contract, eventually leading to leaks.


Signs of Head Gasket Failure


It’s important to recognize the symptoms of a failing head gasket early to prevent further damage. Here are some common signs to watch for:



  • Overheating: The engine may overheat due to coolant loss or contamination.

  • White Smoke: White smoke from the exhaust could indicate coolant entering the combustion chamber.

  • Oil Contamination: A milky appearance in the oil or oil cap suggests coolant mixing with oil.

  • Coolant Loss: Unexplained loss of coolant without visible leaks.


How to Address the Issue


If you suspect head gasket failure in your Subaru Outback, it’s crucial to act quickly. Here’s what you should do:



  • Consult a Professional: Take your vehicle to a trusted mechanic for a thorough inspection and diagnosis.

  • Replace the Gasket: If the head gasket is confirmed to be the issue, it will need to be replaced. Modern replacement gaskets are made from improved materials to prevent recurrence.

  • Inspect Related Components: During the repair, ensure that other components, such as the radiator and thermostat, are functioning properly.

  • Regular Maintenance: Preventative maintenance, such as regular coolant flushes, can help extend the life of your head gasket.


Conclusion


While head gasket failure is a common problem with Subaru Outbacks, it’s not an insurmountable one. By staying vigilant for warning signs and addressing the issue promptly, you can keep your Outback running smoothly for years to come. At Kevin’s Autos, we specialize in diagnosing and repairing head gasket issues, ensuring your vehicle gets back on the road safely and reliably. If you’re experiencing any of the symptoms mentioned above, don’t hesitate to reach out to us for expert assistance!


Frequently Asked Questions

What year does Subaru have a bad engine?


  • Roughly 1996--2010 were the worst years of the now infamous Subaru 2.5 liter cylinder head gasket failures.
  • The first is a too-cheap, inadequate cylinder head gasket design that is in and of itself prone to failure.
  • The second is lack of maintenance by the car owner.
  • Rega



What year does the Subaru Outback have transmission problems?


The Subaru Outback models from 2010 to 2013 may be more likely to have transmission issues. These problems often include rough shifting, slipping gears, and even transmission failure. Another common problem in these years is the torque converter locking up when braking, especially in the 2010 models.



What is the average lifespan of a Subaru Outback?


200,000 to 300,000 miles
With regular maintenance and responsible driving, Subaru Outbacks typically last 200,000 to 300,000 miles. Their high-reliability ratings and solid build quality place them among the top contenders in longevity, giving them a 22.3% chance of surpassing 250,000 miles—well above the industry average for SUVs.



Why does Subaru have a bad reputation?


Issues such as engine problems, failing oxygen sensors, Takata airbag recalls, transmission concerns, and rodent-attractive wiring can affect various Subaru models.



At what mileage do Subaru head gaskets fail?


The head gaskets on many Subaru's have a high rate of failure. They should last 100,000 miles in ideal conditions.



What year does Subaru have a bad CVT?


Several older models have experienced Subaru CVT problems – enough so that Subaru has offered factory warranty extensions on these vehicles. Affected models include: 2010-2015 Legacy. 2010-2015 Outback.



What are the weaknesses of a Subaru Outback?


Some top Subaru Outback problems include weak windshields, poor cooling systems, oxygen sensor failure, excessive oil consumption due to oil leaks, and faulty airbags.



Is there a recall on the Subaru Outback transmission?


(Subaru) has initiated this safety and emissions Recall for certain 2019 - 2020 model year Ascent vehicles, 2020-2021 model year turbo Legacy vehicles, and 2020-2021 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break.



What is the biggest issue with a Subaru Outback?


Common Subaru Outback problems: Oil leaks, transmission problems, weak windshield, faulty oxygen sensors, faulty headlights, faulty airbags, trunk won't open.



What is the best year to buy a Subaru Outback?


The Subaru Outback is renowned for its reliability, safety, and all-wheel drive capability, with certain model years like 2016, 2017, 2014, 2007, and 2001 standing out for their performance and value.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.