You are not giving enough information to get a reasonable answer. It's like asking why it won't start. Any, and I mean any, detail would help. Are we talking about the engine cooling system? What are the symptoms that bring you to the conclusion it is overheating? Have you checked the coolant level? What year and size engine? Does it overheat only when stressing the engine, like climbing hills? Does it overheat only in traffic and okay on the highway? Does it overheat when the car is idling? Has the head gasket ever been replaced?
You may need to replace the radiator thermostat and gasket.
Subaru Outback was created in 1995.
where would you find out if the Air Conditioner filter is blocked on a 2005 Subaru Outback
The Subaru Outback is sold in the US.
I would need to know which engine is in my 2011 Subaru Outback to answer this question. Oil capacity information is in my owner's manual.
The 2006 Subaru Outback has 16 valves.
The 2013 Subaru Outback has 16 valves.
The 2002 Subaru Outback has 16 valves.
The 2001 Subaru Outback has 16 valves.
The 2011 Subaru Outback has 16 valves.
The 2005 Subaru Outback has 16 valves.
The 2007 Subaru Outback has 16 valves.