yes its at the side of the radiator
this sounds alot like a turbo failure, although there could well be a leak in the pipes leading from the turbo to the intercooler, or from the intercooler to the inlet manifold. also check the intercooler for leaks. or it is the vacuum pipe that operates the waste gate on the turbo, or a seized waste gate.
Turbo charged with intercooler
It depends on the model. The WRX and WRX STI models have a turbo. Like most Subarus, if the Impreza has a hood scoop (for the intercooler) it has a turbo.
With enough money and will power, you can turbo any engine that produces exhaust.
The normal direction of airflow is air filter to turbo, to intercooler, to engine.The normal direction of airflow is air filter to turbo, to intercooler, to engine.
A car can run with out an intercooler, but if it was designed to have an intercooler, the driveabilty will be affected.
thw weather is cold?
yes
yes
There will always be some oil in the intercooler. Part of the emissions system connects the engine breather to the airbox. As the turbo sucks air through the airbox it tends to suck some oil into the intercooler.
On a 1986-91 model they connect to the throttle body and the turbo compressor ! Hope it helps!
Whatever the intercooler is for (transmission, turbo, etc), will most likely overheat and do some damage.