Why are the head gaskets on my Subaru EJ25 not working?
Another common complaint is that the EJ25 has high oil consumption, which may be tied to these gasket failures. A quick look on Mitchell’s Pro-Demand service indicated that there were 484 head gasket repairs performed on 2003 Subaru Outbacks with the 2.5L engine.
When did the EJ251 engine get DOHC heads?
The EJ251 engine used DOHC heads with 4-valves per cylinder from 1996-1999, which was on the Legacy and Outback, as well as the 1998 Impreza RS and Forester. In 1999, the Impreza RS and Forester received the second generation EJ251 with SOHC cylinder heads.
What kind of engine does a Subaru EJ25 have?
The EJ series 4-cylinder boxer engine family has been in service since the EJ15 in the mid-’80s (JDM only) but found its way to North America with the EJ20. Most of the head gasket failures we know of have been with the EJ25 found in Subaru’s most popular models, including the WRX, Outback and Forester.
How often are head gaskets replaced on Subaru Outbacks?
A quick look on Mitchell’s Pro-Demand service indicated that there were 484 head gasket repairs performed on 2003 Subaru Outbacks with the 2.5L engine. One of the most common repairs for customers with oil leaks and overheating issues was to replace the head gaskets.
How long does it take to repair a forester head gasket?
Repairing your forester head gasket might take up to two days as the technicians will need time to test and recheck it. It has been reported that the cooling system and sensors fail just after the gasket repair. You should not expect any problem after fixing it but just be aware that there is tendency for that.
When did the head gasket fail on my Subaru?
The main problem years are 1996 through 2004. The most common engine to have head gasket failures is the naturally aspirated (non turbo) Subaru 2.5 L four cylinder engine, commonly known as the EJ25 motor. The single overhead camshaft (SOHC) variant experiences failures much more frequently than the dual overhead camshaft design (DOHC).
Can a 2.5 SOHC head gasket be replaced?
You can buy it here. Since the 2.5 SOHC has the highest failure gasket rate, we will discuss the replacement. Gasket failure may cause the oil and coolant to mix causing problems with the SOHC engines. If the gasket is replaced and not done the right way, it may lead to internal combustion.
What to do if you have a head gasket leak?
One of the telltale symptoms of a head gasket leak is an overheating engine. If your engine starts to overheat, pull over to let it cool down for a bit before you continue driving.