Subaru has used both interference engines and non-interference engines over the years. Older model Subarus, those made in the mid-90s and earlier may be non-interference engines. However, anything made more recently is probably an interference engine.
Which Subaru engines are interference?
ALL 2.5L Subaru engines ARE interference engines according to Subaru.com.
Which Subaru engines to avoid?
Subaru 2.5-L Turbo Four Cylinder
Owners of 2009-14 Subaru Impreza WRX and WRX STI models have launched a class-action lawsuit, alleging the pistons and PCV (positive crankcase ventilation) systems in the high-performance 2.5-L turbocharged engines may overheat or malfunction, requiring a king’s ransom in repairs.
Is a 2.5 L Subaru engine interference?
SUBARU vehicles manufactured up to and including 1996 typically non-interference SUBARU engines. The 1996 2.5L phase I DOHC engine is likely non-interference piston to valve, but interference between intake and exhaust valves.
Does Subaru Outback have interference engine?
Replacing the water pump is often a good idea as well. Especially when the timing belt replacement interval is 100,000 or more miles.
Which SUBARU engines are interference? What SUBARU engines are non-interference?
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How long do Subaru timing chains last?
When does a timing chain need to be replaced? The timing chain normally needs to be replaced between 80,000 and 120,000 miles unless there is a specific problem.
Is a Subaru 2.0 an interference engine?
The SOHC EJ Subaru boxer engines were non-interference engines through 1996, run by a single timing belt driving both cams (both sides of the engine) and the water pump. Because they are non-interference engines, if the timing belt fails, the engine of the models up to 1996 will not be destroyed.
Why are Subarus so unreliable?
One of the core reasons that Subaru reliability has dropped is due to the problems that the Outback and Legacy have had with in-car technology. This is a common reason for declining dependability in a number of makes and models since the early 2000s. Many cars today have a great deal of new and complex technology.
Why are Subaru engines so bad?
Subaru EJ engines have numerous ongoing issues that Subaru refuses to address; head gasket failures, “ring land” failures, rod bearing failures, high oil consumption, etc. Any of these issues can, and often do lead to catastrophic engine failure.
What are common problems with Subarus?
The Most Common Subaru Problems
- CAN System Parasitic Drain on the Battery. …
- Denso Fuel Pump Failure. …
- Unintended Acceleration. …
- Brake Light Switch Defect. …
- Cracked Windshields. …
- Subaru STARLINK Problems. …
- Lineartronic CVT Reliability. …
- Rodents Chew Subaru’s Soy Wires.
Does Subaru 2.5 have timing belt?
Subaru Impreza Timing Overview (All Model Years)
From 2012 to 2021 all 2.0L engines have a timing chain while the 2.5L engine has a timing belt.
What cars have interference engines?
More videos on YouTube
- Audi. • 1.8L 1.9L Interference. …
- BMW. • 2.5L 325I 525I Interference. …
- Acura. • All except SLX Interference. …
- Chrysler. • 1.4L, 1.5L & 1.6L Interference. …
- Fiat. • 1.3L 128 Series Interference. …
- Ford. • 1.3L Non-Interference. …
- GM and Saturn. • 1.0L Interference. …
- GEO. • 1.0L Interference.
How much does it cost to change a timing belt on a Subaru?
Replacing a timing belt in your Subaru Outback can be a fairly costly repair. Typically, you’re going to be paying somewhere between $550 and $1,000 to get a timing belt replaced in a Subaru Outback. The average price hovers around $700.
Why do Subarus have head gasket problems?
Subaru Head Gasket Problem Years – First Round
These engines suffered from internal head gasket leaks. The main reason they experienced issues is because the engine overheated as a result of losing coolant due to the head gasket leak. This leaking coolant resulted in the coolant system not properly working.
Do Subarus have a timing belt or chain?
Since 2013, all Subaru engines have been equipped with timing chains rather than belts – except for the high-performance Subaru WRX and WRX STI.
What’s better timing chain or belt?
Most automakers recommend replacing the timing belt every 60,000 to 105,000 miles. Timing chains are heavier and more complex than timing belts, but they also last much longer. … Like timing chains, timing gears are strong, accurate and last a long time.