mkoch Posted February 17, 2022 Share Posted February 17, 2022 A steaming cloud of coolant was emanating from under my air filter cover, passenger side, this evening!! See photo for an approximation of what it looked like. Coolant represented in green. What is the most likely source of the leak? Link to comment Share on other sites More sharing options...
pksjeep Posted February 17, 2022 Share Posted February 17, 2022 There is a small rubber hose behind the distributer, check that. Paul Link to comment Share on other sites More sharing options...
mkoch Posted February 17, 2022 Author Share Posted February 17, 2022 I am sure the leak is not coming from the two hoses highlighted in the image. Is the center of the intake manifold connected to the engine coolant? Link to comment Share on other sites More sharing options...
DaveT Posted February 18, 2022 Share Posted February 18, 2022 The intake manifold has a coolant passage, along with the path for the intake. The gaskets between the heads and the intake can fail, one way puts the coolant on top of the engine, the other, it gets sucked into the cylinders and burned. Get the intake gaskets from a Subaru dealer. The aftermarket ones are no where near as good. Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted February 18, 2022 Share Posted February 18, 2022 parts stores will loan tools, one that is often available is a kit to pressurize the cooling system. That way you can diagnose a leak without dodging hot liquid. 1 Link to comment Share on other sites More sharing options...
UnorganizedMechanic Posted February 20, 2022 Share Posted February 20, 2022 On 2/17/2022 at 6:44 PM, DaveT said: The intake manifold has a coolant passage, along with the path for the intake. The gaskets between the heads and the intake can fail, one way puts the coolant on top of the engine, the other, it gets sucked into the cylinders and burned. Get the intake gaskets from a Subaru dealer. The aftermarket ones are no where near as good. In addition to the gaskets, I applied some grey silicon to each side of them. So far, so good. With a beast this old and unknown, I did that to the intake manifold gaskets, water pump gasket, and thermostat housing gasket in addition to greasing up the mounting bolts to prevent oxidation and fusing to the intake again. Hopefully it's just overkill and not a future problem. +1 to pressure checking the system, make sure it's not the head gasket leaking coolant on top of the engine. Good luck. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now