Does a 2015 Subaru have a timing chain?
Yes, the 2015 Subaru models typically have a timing chain rather than a timing belt. Timing chains are more durable and longer-lasting components compared to timing belts, which need to be replaced periodically as part of regular maintenance.
Timing Chain vs. Timing Belt in Subaru Vehicles
Subaru engines, including those found in the 2015 model year, utilize a timing chain to synchronize the opening and closing of the engine's valves with the rotation of the crankshaft. Timing chains are metal components that are designed to last the lifetime of the engine, whereas timing belts are made of rubber and need to be replaced every 60,000 to 100,000 miles, depending on the manufacturer's recommendations.
The use of a timing chain in Subaru vehicles provides several advantages over a timing belt:
- Durability: Timing chains are more resistant to wear and tear compared to timing belts, which can stretch, crack, or break over time.
- Longevity: Timing chains typically last the entire lifespan of the engine, eliminating the need for periodic replacement.
- Reliability: The failure of a timing belt can cause significant engine damage, but a timing chain is less likely to fail unexpectedly.
While timing chains are generally more expensive to manufacture, the long-term cost savings and improved reliability make them a preferred choice for Subaru's engine designs.
Subaru Engines with Timing Chains
The majority of Subaru's engine offerings, including the popular Boxer engines found in models like the Outback, Ascent, and Impreza, utilize a timing chain system. This includes the following Subaru engines from the 2015 model year:
- 2.5L Boxer 4-cylinder engine
- 3.6L Boxer 6-cylinder engine
- 2.4L Turbo Boxer 4-cylinder engine
By using a timing chain in these engines, Subaru has been able to provide drivers with a more durable and reliable powertrain that requires less maintenance over the life of the vehicle.
What year did Subaru go to timing chain?
Subaru began transitioning to timing chains around 2001 for its six-cylinder (H6) engines, but the switch for most four-cylinder engines happened later, with the new FB engine series being introduced in 2011 for the Forester, 2012 for the Impreza, and 2013 for the Legacy/Outback. Therefore, the year Subaru fully switched to timing chains for its main four-cylinder models is approximately 2011-2013, depending on the specific model.
- For six-cylinder (H6) engines: The switch to timing chains began around 2001.
- For four-cylinder engines:
- Forester: Started using the new FB engine with a timing chain in the 2011 model year.
- Impreza: Started using the new FB engine with a timing chain in the 2012 model year.
- Legacy/Outback: Started using the new FB engine with a timing chain in the 2013 model year.
- Turbocharged engines: Some turbocharged four-cylinder engines continued to use timing belts for a few more years. For example, the EJ255 (2.5L Turbo) in the US was used from 2004 to 2013, while the newer FA20DIT (2.0L Turbo) uses a chain.
What are symptoms of a timing chain going bad on a Subaru?
Symptoms of a Failing Timing Chain
- Rattling Noise from the Engine. One of the first and most noticeable signs of a failing timing chain is a rattling noise, especially when the engine is idling.
- Engine Misfires.
- Difficulty Starting the Engine.
- Oil Contamination.
- Illuminated Check Engine Light.
- Reduced Engine Performance.
How do I know if my Subaru has a timing belt or chain?
But you will see a black plastic timing belt cover on the front side of the engine. Now pros of timing belt.
Does a 2015 Subaru have a timing chain or belt?
If the 2015 Outback is a 4-cylinder, it has an FB25 engine with chain driven camshafts. 2012 and earlier use the quieter EJ25 engine that utilizes composition timing belt driven camshafts.
