When should the Subaru timing chain be replaced?
The Subaru timing chain is a critical component in the engine that ensures proper synchronization between the crankshaft and camshaft. Replacing the timing chain at the right time is essential to maintain the engine's performance and prevent costly repairs. In this article, we'll explore when the Subaru timing chain should be replaced.
What is a Timing Chain?
The timing chain is a metal chain that connects the crankshaft to the camshaft in the engine. It ensures that the valves open and close at the correct times, allowing the engine to run smoothly and efficiently. Unlike a timing belt, which is made of rubber and needs to be replaced periodically, a timing chain is designed to last the lifetime of the engine. However, it can still wear out over time and may need to be replaced in some cases.
When Should the Subaru Timing Chain Be Replaced?
The Subaru timing chain is generally designed to last the lifetime of the engine, but there are a few factors that can affect its lifespan:
- Mileage: The timing chain may need to be replaced if the vehicle has high mileage, typically around 100,000 miles or more.
- Age: Even if the mileage is low, the timing chain may need to be replaced if the vehicle is several years old, usually around 10 years or more.
- Driving Conditions: Driving in harsh conditions, such as towing heavy loads or frequent stop-and-go traffic, can cause the timing chain to wear out faster.
- Maintenance History: If the timing chain has not been properly maintained, it may need to be replaced sooner.
It's important to note that the timing chain should be inspected regularly as part of routine maintenance. If the chain shows signs of wear, such as stretching or looseness, it should be replaced as soon as possible to prevent engine damage.
Symptoms of a Failing Timing Chain
If the Subaru timing chain is starting to fail, you may notice one or more of the following symptoms:
- Engine Noise: A rattling or ticking noise coming from the engine, especially at startup or under load, can be a sign of a worn timing chain.
- Engine Misfiring: If the timing chain is stretched or loose, it can cause the engine to misfire, leading to poor performance and reduced fuel efficiency.
- Check Engine Light: A problem with the timing chain can trigger the check engine light to illuminate on the dashboard.
- Engine Stalling: In severe cases, a failing timing chain can cause the engine to stall or shut off completely.
If you notice any of these symptoms, it's important to have your Subaru inspected by a qualified mechanic as soon as possible to determine the cause and prevent further damage to the engine.
Conclusion
The Subaru timing chain is a durable component, but it can still wear out over time. Replacing the timing chain at the right time is crucial to maintain the engine's performance and prevent costly repairs. By being aware of the signs of a failing timing chain and following the recommended maintenance schedule, you can help ensure your Subaru runs smoothly for years to come.
How do I know when my timing chain needs replacing?
These signs include:
- Rattling Sound on Starting The Engine or Idling. A common finding in a vehicle with a bad timing chain is unusual rattling noise when the engine is started or when brakes are engaged.
- Misfiring Engine.
- Contaminated Engine Oil.
- Check Engine Light.
- Inability to Start The Engine.
Do Subaru timing chains need to be replaced?
A timing belt is rubber-based, and will need to be replaced at certain maintenance intervals. A timing chain is bulkier and louder; however, it does not require replacement. Though a repair might be necessary in some rare occasions, most timing chains last for the entire life of the engine.
When should the timing chain be replaced on a 2014 Subaru Outback?
Subaru timing belts need to be replaced after seven years or 105,000 miles; whichever comes first.
Can a timing chain last 200,000 miles?
Timing chains can last anywhere between 150,000 and 200,000 miles before they require repair or sustain damage. But once they do, they must be replaced without fail as they can break off entirely, therefore causing the engine to fail.
Can a timing chain last 200 000 miles?
Timing chains can last anywhere between 150,000 and 200,000 miles before they require repair or sustain damage. But once they do, they must be replaced without fail as they can break off entirely, therefore causing the engine to fail.
At what mileage should a timing chain be replaced?
Timing chains are designed to last a long time, typically between 100000 to 200000 miles (or about 160000 to 320000 kilometers). Unlike timing belts, which require regular replacement, timing chains generally do not have a specific replacement interval.
What Subaru models have a timing chain?
All Foresters from 2011 onward (2014 for the XT) have a timing chain.
What year did Subaru change to timing chains?
2011
2011 was the first year for the newest version of the 2.5L normally aspirated engine. Years previous to 2011 the 2.5L, as did all Subaru flat four engines, used a timing belt. Beginning in 2011 the 2.5L uses a timing chain.
What years did Subaru have CVT problems?
The models and years that were affected mainly by transmission issues are:
- Crosstrek, 2013 – 2015.
- Crosstrek Hybrid, 2014 – 2015.
- Forester (2.0 and 2.5 liter engines), 2014 – 2015.
- Impreza, 2012 – 2015.
- Legacy, 2010 – 2015.
- Legacy 3.6L V6, 2015.
- Outback, 2010 – 2015.
- Outback 3.6L V6, 2015.
Does a 2015 Subaru Outback have a timing belt or timing chain?
Both engines found in 2015 Outbacks sold in North America—the four-cylinder FB25B engine and the six-cylinder EZ36D engine—use a timing chain, not a timing belt (the six-cylinder engine actually has two chains).
