How to Burp your Subaru Cooling System

For the cooling system in your WRX or STI to work properly, it can't have any air present.

On many cars it is fairly easy to get all of the air out (also known as burping) of the cooling system.

But this process is a bit more complicated on a Subaru EJ engine.  There are a couple of reasons for this.  The first is because the thermostat is placed on the bottom of the engine, not the top, and the second is because of the boxer engine design.

We had Jon's Sonic Yellow WRX in the shop to replace the timing components, and as part of that we had to re-fill the engine with coolant and burp the system, and we put together a video talking about that process.

Thanks for watching and Stay Tuned!