Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 57
IN(STI)-10
Air Intake Duct
INTAKE (INDUCTION)
4. Air Intake Duct
A: REMOVAL
Remove the clip which secures the air intake duct,
and remove the air intake duct.
B: INSTALLATION
Install in the reverse order of removal.
C: INSPECTION
1) Check that the air intake duct has no deforma-
tion, cracks or other damages.
2) Inspect that no foreign objects are mixed in the
air intake duct.
IN-02648
IN(STI)-11
Intake Duct
INTAKE (INDUCTION)
5. Intake Duct
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the intake manifold. <Ref. to FU(STI)-
17, REMOVAL, Intake Manifold.>
3) Remove the sensor, engine harness and fuel
pipe from the intake manifold. <Ref. to FU(STI)-25,
DISASSEMBLY, Intake Manifold.>
4) Remove the intake duct from intake manifold.
5) Remove the PCV hose assembly and air by-
pass hose from the intake duct.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
17 N·m (1.7 kgf-m, 12.5 ft-lb)
C: INSPECTION
Check that the intake duct has no deformation,
cracks or other damages.
IN-00203
IN-03103
IN(STI)-12
Intercooler
INTAKE (INDUCTION)
6. Intercooler
A: REMOVAL
1) Remove the bolts holding the PCV pipe to the in-
tercooler.
2) Loosen the clamp (A) holding the intake duct to
the turbocharger.
3) Loosen the clamp (B) holding the air duct hose
to the intercooler.
4) Remove the bolts (C) securing the air by-pass
valve to the intercooler, and disconnect the air by-
pass valve.
5) Remove the bolts which secure the intercooler to
the intercooler stay, and remove the intercooler.
6) Remove the air duct hose from the throttle body.
7) Remove clip (A) holding the engine harness to
the intercooler stay RH, and remove the intercooler
stay RH.
IN-03078
IN-03497
(A)
(B)
(C)
IN-03080
IN-03498
IN-03104
IN-03082
(A)
IN(STI)-13
Intercooler
INTAKE (INDUCTION)
8) Remove the intercooler stay LH.
B: INSTALLATION
1) Install the intercooler stay LH.
Tightening torque:
16 N·m (1.6 kgf-m, 11.8 ft-lb)
2) Install the intercooler stay RH, and install the clip
(A) which secures the engine harness to the inter-
cooler stay RH.
Tightening torque:
16 N·m (1.6 kgf-m, 11.8 ft-lb)
3) Attach the air duct hose to the throttle body.
Tightening torque:
3 N·m (0.3 kgf-m, 2.2 ft-lb)
4) Install the intercooler to the intercooler stay.
Tightening torque:
16 N·m (1.6 kgf-m, 11.8 ft-lb)
5) Tighten the clamp (A) which secures the intake
duct to the turbocharger.
6) Tighten the clamp (B) which secures the air duct
hose to the intercooler.
IN-03083
IN-03083
IN-03082
(A)
IN-03104
IN-03080
IN-03498
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