Nissan X-Trail 32. Instruction — part 1070
INTAKE MANIFOLD
EM-177
< REMOVAL AND INSTALLATION >
[QR25DE]
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4.
Disconnect the PCV hose from the intake manifold.
5.
Disconnect the EVAP hose
and EVAP canister purge volume
control solenoid connector
.
6.
Disconnect the brake booster vacuum hose from the intake manifold.
7.
Disconnect the water hoses from the electric throttle control actuator.
NOTE:
When removing only intake manifold, position electric throttle control actuator aside without disconnecting
the water hose.
8.
Loosen bolts in reverse order as shown, then remove electric
throttle control actuator and gasket.
CAUTION:
Handle carefully to avoid any damage.
9.
Disconnect electrical harness clip and harness connectors from
the intake manifold runner control valve actuator
, intake man-
ifold runner control valve position sensor
.
10. Disconnect oil cooler hose clamp
.
JSBIA4475ZZ
JSBIA4471ZZ
: Clamp
JSBIA4474ZZ
: Intake manifold runner control valve actuator
: Intake manifold runner control valve position sensor
JSBIA4474ZZ
EM-178
< REMOVAL AND INSTALLATION >
[QR25DE]
INTAKE MANIFOLD
11. Remove the bolts and nuts in the reverse order shown using
power tools and remove the intake manifold assembly with gas-
ket.
CAUTION:
Cover engine openings to prevent entry of foreign materi-
als.
NOTE:
Disregard No. 6 when loosening.
INSTALLATION
Installation is in the reverse order of removal. Follow the tightening sequences and specifications below and
perform the following:
• Perform the
″
Throttle Valve Closed Position Learning
″
when harness connector of electric throttle control
actuator is disconnected. Refer to
• Perform the
″
Idle Air Volume Learning
″
and
″
Throttle Valve Closed Position Learning
″
when electric throttle
control actuator is replaced. Refer to
Intake Manifold
1.
Securely install gasket to the mounting groove.
CAUTION:
Do not reuse gasket.
2.
If studs were removed, install them and tighten to specification.
3.
Tighten in numerical order as shown.
CAUTION:
After tightening the five bolts in the order shown, the 1, 6
position designates that the first bolt tightened is to be
retightened to specification.
Electric Throttle Control Actuator
1.
Install a new gasket on the electric throttle control actuator.
CAUTION:
Do not reuse gasket.
2.
Tighten the bolts of electric throttle control actuator equally and
diagonally in several steps in numerical order as shown.
JSBIA4472ZZ
Studs
: 9.4 N·m (0.96 kg-m, 83 in-lb)
Bolts 1, 2, 3, 6
: 25.0 N·m (2.6 kg-m, 18 ft-lb)
Nuts 4, 5
: 25.0 N·m (2.6 kg-m, 18 ft-lb)
JSBIA4472ZZ
JSBIA4471ZZ
INTAKE MANIFOLD
EM-179
< REMOVAL AND INSTALLATION >
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Inspection
INFOID:0000000010783787
INSPECTION AFTER REMOVAL
1.
Make sure there are no fuel leaks at connections as follows:
a.
Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped).Then check for fuel
leaks at connections.
NOTE:
Use mirrors for checking on connections out of the direct line of sight.
b.
Start the engine and rev it up and check for fuel leaks at connections.
WARNING:
Do not touch engine immediately after stopping as engine is extremely hot.
EM-180
< REMOVAL AND INSTALLATION >
[QR25DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
Exploded View
INFOID:0000000010783788
Removal and Installation
INFOID:0000000010783789
REMOVAL
1.
Remove the engine under cover. Refer to
EXT-39, "ENGINE UNDER COVER : Exploded View"
2.
Remove the exhaust front tube 1. Refer to
3.
Remove the air duct 1. Refer to
EM-175, "Removal and Installation"
.
4.
Remove the drive belt. Refer to
EM-166, "Removal and Installation"
.
5.
Remove the alternator. Refer to
CHG-46, "QR25DE : Removal and Installation"
.
Gasket
Three way catalyst cover
Exhaust manifold cover (lower)
Exhaust manifold and three way cat-
alyst assembly
Exhaust manifold cover (upper)
Air fuel ratio sensor 1
: N·m (kg-m, ft-lb)
: N·m (kg-m, in-lb)
: Always replace after every disassembly.
JSBIA3331GB
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