Waolagala
Achaalar
Dparalian
• The wastegate actuator Is a spring
lOa
ded
diaphragm acted on by manifold pressure
and controlled
by
the wastegate control
(WGC)
solenoid.
•
The
wastegate control solenoid, duty cycle
controlled
by the PCM, is allowed to bleed
pressure via a hose connected to the air
intake system
for
precise control.
• Spring pressure closes the wastegate.
Note:
A tampered
or
disabled wastegate
will result In decreased performance and
potential turbocharger damage.
Waot
o
gal
a
Aclualar
Dlagnaallu
•
To
test the wastegate actuator, apply
regulated air pressure
to
the actuator.
starting
at
zero
11nd
slowly increasing
pressure while observing actuator
rod
movement.
• The actuator
should
start to move at 5 psi.
• The actuator should hold 5 psi lor
30seconds.
lnlaka
Ia
CAC
Hau
sl
na
Hu
..
• The
CAC
intake
air
hOse
has
offset
diameter tnlet and outlet, this is due to the
diHerence
in
the
CAC
housing a
nd
intake
covers.
Note: H
oses
are
of
special material and
should
not
be
substituted
during
service.
16
INLET
Charge Air
Cooler
Housing
Ope
n-
Cl
osed
Open+-
---
~
Cl
ou
d
Non
Charga
Air
Culacl
W
GC
Actuator
Green
Hose
(Vacuum
)
Apply
pressure
horo
Charga
Air
Coaled
0
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