How long does a Subaru timing chain last?
The timing chain in a Subaru vehicle is designed to last the lifetime of the engine, typically around 200,000 miles or more with proper maintenance. However, the actual lifespan can vary depending on driving conditions, maintenance history, and other factors.
What is a Timing Chain?
The timing chain is a critical component in a Subaru engine that synchronizes the opening and closing of the intake and exhaust valves with the movement of the pistons. It ensures the engine's cylinders fire at the correct time, allowing for optimal performance and fuel efficiency. Unlike a timing belt, which is a rubber component that requires periodic replacement, a timing chain is a more durable metal chain that is designed to last much longer.
Factors Affecting Timing Chain Lifespan
Several factors can influence the lifespan of a Subaru timing chain:
- Driving Conditions: Frequent towing, hauling heavy loads, or driving in extreme temperatures can put additional stress on the timing chain and cause it to wear out faster.
- Maintenance History: Regular oil changes and timely replacement of other engine components, such as the water pump and tensioners, can help extend the timing chain's lifespan.
- Engine Design: Some Subaru engine models, such as the EJ25 and FA20, are known to have more durable timing chain systems that are less prone to premature wear.
- Mileage: As a general rule, the higher the mileage, the more wear and tear the timing chain will experience over time.
It's important to note that while Subaru timing chains are designed to last a long time, they are not indestructible. Regular inspections and proactive maintenance are crucial to ensuring the longevity of this critical engine component.
Symptoms of Timing Chain Wear
If the timing chain in a Subaru vehicle begins to wear out, it may exhibit the following symptoms:
- Rattling or Ticking Noise: A worn timing chain can produce a distinctive rattling or ticking sound, especially when the engine is cold or under load.
- Engine Misfiring: As the timing chain wears, it can cause the engine's valves to open and close at the wrong time, leading to misfiring and reduced performance.
- Check Engine Light: The vehicle's onboard diagnostics system may detect issues with the timing chain and trigger the check engine light.
- Decreased Fuel Efficiency: A worn timing chain can cause the engine to run less efficiently, leading to a noticeable drop in fuel economy.
If you notice any of these symptoms, it's important to have your Subaru inspected by a qualified mechanic as soon as possible to prevent further damage to the engine.
What is the average lifespan of a timing chain?
Unless your engine has a specific replacement interval, the commonly accepted mileage is between 80,000 and 100,000 miles. However, the timing chain isn't necessarily a maintenance item and can last the engine's life, provided you change the oil regularly and maintain the rest of the engine.
When should a Subaru timing chain be replaced?
It should be replaced approximately every 100k miles.
What year did Subaru go to timing chains?
Commonly found on most Subaru vehicles built in the 1990s and early 2000s, the EJ family of engines all feature timing belts. But, in 2010, the new FB family of engines featured an all-new design including a timing chain.
Do all Subarus have timing chains?
Depending on what kind of engine your Subaru has, it may be equipped with either a timing belt or a timing chain. These two parts serve the same function, but require different attention. A timing belt is rubber-based, and will need to be replaced at certain maintenance intervals.
At what mileage should timing chains be replaced?
between 80,000 and 100,000 miles
When Should It be Replaced? Unless your engine has a specific replacement interval, the commonly accepted mileage is between 80,000 and 100,000 miles. However, the timing chain isn't necessarily a maintenance item and can last the engine's life, provided you change the oil regularly and maintain the rest of the engine.
Can a Subaru timing belt last 200 000 miles?
It is safer to replace the timing belt even earlier than the manufacturer recommends. In general, however, timing belts needs to be replaced from 60,000 miles up to 150,000 miles.
Are Subarus reliable after 200k miles?
Subaru vehicles are renowned for their exceptional longevity, often surpassing 200,000 miles or more with proper maintenance and care.
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.
Is it worth fixing a timing chain?
There's no reason to alter the timing chain unless it's damaged, strained, or otherwise affected. If there is a problem with the timing chain, your car will most likely have one or more issues.
What is the mileage limit for a timing chain?
Timing chains typically last much longer than timing belts and often don't require replacement during a vehicle's lifetime. Many manufacturers design timing chains to last 150,000 to 300,000 miles or more. However, if issues arise, replacement may be necessary.
