Nissan Titan. Manual — part 306
EM-28
< REMOVAL AND INSTALLATION >
INTAKE MANIFOLD
6. Disconnect the fuel tube quick connector on the engine side in
the following steps.
a. Remove quick connector cap (engine side only).
b. With the sleeve side of Tool facing quick connector, install Tool
onto fuel tube.
c.
Insert Tool into quick connector until sleeve contacts and goes
no further. Hold the Tool in that position.
CAUTION:
Inserting the Tool hard will not disconnect quick connector.
Hold Tool where it contacts and goes no further.
d. Draw and pull out quick connector straight from fuel tube.
CAUTION:
• Handle O-ring with bare hands. Do not wear gloves.
• Do not reuse O-rings.
• Lubricate O-ring with new engine oil.
• Do not clean O-ring with solvent.
• Prepare container and cloth because fuel will leak.
• Avoid fire and sparks.
• Be sure to cover openings of disconnected pipes with plug or plastic bag to avoid fuel leaks
and entry of foreign materials.
7. Remove or disconnect harnesses, brackets, vacuum hose, PCV hose and tube from intake manifold.
8. Remove the EVAP canister purge control solenoid valve, if necessary.
9. Remove electric throttle control actuator by loosening bolts diag-
onally in the reverse order as shown.
CAUTION:
• Handle carefully to avoid any damage to the electric throt-
tle control actuator.
• Do not disassemble.
10. Remove the fuel injectors and fuel tube assembly. Refer to
EM-43, "Removal and Installation"
LBIA0395E
SBIA0354E
Tool number
: 16441 6N210 (J-45488)
WBIA0604E
PBIC2875E
INTAKE MANIFOLD
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< REMOVAL AND INSTALLATION >
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11. Loosen the bolts in reverse order shown using power tool.
12. Remove the intake manifold.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
• Clean all gasket mating surfaces, do not reuse gaskets.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten the intake manifold bolts in numerical order as shown.
• Install the EVAP canister purge control solenoid valve connector with it facing front of engine.
• Tighten the electronic throttle control actuator bolts of the electric
throttle control actuator equally and diagonally in several steps as
shown.
• After installation perform inspection after installation.
• Install the water hose so that its overlap width for connection is
between 27 mm (1.06 in) and 32 mm (1.26 in) (target: 27 mm 1.06
in).
Connecting Quick Connector of Fuel Tube
Install quick connector as follows (the steps are the same for quick connectors on both engine side and vehi-
cle side except for the quick connector cap).
1. Make sure no foreign substances are deposited in and around tube and quick connector, and they are not
damaged.
2. Thinly apply new engine oil around the fuel tube from tip end to the spool end.
3. Align center to insert quick connector straight into fuel tube.
• Insert until the paint mark for engagement identification (white)
goes completely inside quick connector so that you cannot see
it from the straight side of the connected part. Use a mirror to
check this where it is not possible to view directly from the
straight side, such as quick connector on vehicle side.
KBIA2462E
KBIA2462E
PBIC2875E
PBIC0017E
EM-30
< REMOVAL AND INSTALLATION >
INTAKE MANIFOLD
• Insert fuel tube into quick connector until top spool is com-
pletely inside quick connector, and 2nd level spool exposes
right below quick connector on engine side.
CAUTION:
• Hold (A) position in illustration when inserting fuel tube
into quick connector.
• Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.
• Do not reuse O-rings.
• Insert until you hear a "click" sound and actually feel the
engagement.
• To avoid misidentification of engagement with a similar
sound, be sure to perform the next step.
4. Pull quick connector by hand holding (A) position. Make sure it is completely engaged (connected) so that
it does not come out from fuel tube.
NOTE:
Recommended pulling force is 50 N (5.1 kg, 11.2 lb).
5. Install the quick connector cap on the quick connector joint (on
engine side only).
6. Install the fuel hose and tube to hose clamps.
7. Refill the engine coolant. Refer to
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to
MA-15, "FOR NORTH AMERICA : Fluids and Lubricants"
States and Canada) or
MA-16, "FOR MEXICO : Fluids and Lubricants"
(Mexico).
• Perform procedures for “Throttle Valve Closed Position Learning” after finishing repairs. Refer to
"Throttle Valve Closed Position Learning"
• If electric throttle control actuator is replaced, perform procedures for “Idle Air Volume Learning” after finish-
ing repairs. Refer to
EC-129, "Idle Air Volume Learning"
.
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-
ified level, if necessary.
• Summary of the inspection items:
KBIA0272E
SBIA0354E
Item
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
Transmission/
transaxle fluid
A/T and CVT Models
Leakage
Level/Leakage
Leakage
M/T Models
Level/Leakage
Leakage
Level/Leakage
Other oils and fluids*
Level
Leakage
Level
INTAKE MANIFOLD
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*Power steering fluid, brake fluid, etc.
Fuel
Leakage
Leakage
Leakage
Exhaust gas
—
Leakage
—
Item
Before starting engine
Engine running
After engine stopped
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