Impreza WRX F4-2.0L DOHC Turbo (2004)
2) Remove the bolt which secures the engine harness bracket onto body.
3) Disconnect the washer motor connectors.
4) Remove the washer tank mounting bolts.
5) Move the washer tank upward.
6) Disconnect the spark plug cords from spark plugs (#2 and #4 cylinders).
7) Place a suitable container under the vehicle.
8) Disconnect the PCV hose from rocker cover (LH).
9) Remove the bolts, then remove the rocker cover (LH).
11) Turn the crankshaft pulley clockwise until arrow mark on the camshaft sprocket is set to position shown in the figure.
NOTE: Rotate the crankshaft using a socket wrench.