FUEL INJECTION (FUEL SYSTEMS)(H4DOTC) > Intake Manifold
1. Set the vehicle on a lift.
2. Remove the V-belt covers.
5. Disconnect the ground cable from battery.
6. Open the fuel filler lid and remove the fuel filler cap.
7. Lift up the vehicle.
8. Remove the under cover.
11. Remove the air intake boot.
16. Disconnect the vacuum hose from the PCV connector.
17. Remove the bolts which secure the air by-pass pipe and PCV pipe to the intake manifold, and loosen the clamp which connects the throttle body and intake duct.
18. Remove the intake duct from the throttle body.
19. Disconnect the engine coolant hose from throttle body.
20. Disconnect the brake booster vacuum hose.
• LHD model
• RHD model
21. Disconnect the PCV hose from the rocker cover.
22. Disconnect the air control hose (A) from the wastegate actuator, and loosen the clamp that holds the turbocharger on the intake duct.
• Except for WRX-SS model
• WRX-SS model
23. Disconnect the bulkhead harness connectors from the engine harness connectors.
• LHD model
• RHD model
24. Remove the engine harness connector from the engine harness bracket.
• LHD model
• RHD model
25. Disconnect the connectors from the engine coolant temperature sensor (A), oil pressure switch (B) and crankshaft position sensor (C).
26. Disconnect the connector from power steering pump switch.
27. Disconnect the knock sensor connector.
28. Disconnect the connector from the secondary air combination valve.
29. Disconnect the connector from camshaft position sensor.
30. Disconnect the connector from the oil flow control solenoid valve.
31. Disconnect the air duct from the secondary air pump, and remove the bolts that install the air duct on the rocker cover LH.
32. Disconnect the connector from ignition coil.
33. Remove the clip (A) which holds the engine harness to rocker cover RH.
34. Disconnect the fuel delivery hose, fuel return hose and evaporation hose.
CAUTION:
• Be careful not to spill fuel.
• Catch the fuel from hoses using a container or cloth.
|
(A) |
Fuel delivery hose |
|
(B) |
Fuel return hose |
|
(C) |
Evaporation hose |
35. Remove the intake manifold from cylinder head.