Nissan Frontier. Instruction — part 710
INTAKE MANIFOLD
EM-29
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14. Remove fuel tube and fuel injector assembly from intake manifold. Refer to
INSTALLATION
Installation in the reverse order of removal.
Intake Manifold and Fuel Tube Protector
• If stud bolts were removed, install them and tighten to the specified torque below.
• Tighten in numerical order as shown.
NOTE:
No. 6 means double tightening of bolt No. 1.
Electric Throttle Control Actuator
• Tighten bolts equally and diagonally in several steps and in numer-
ical order as shown.
• Perform the “Throttle Valve Closed Position Learning” when har-
ness connector of electric throttle control actuator is disconnected.
EC-123, "Throttle Valve Closed Position Learning"
• Perform the “Idle Air Volume Learning” and “Throttle Valve Closed
Position Learning” when electric throttle control actuator is
replaced. Refer to
EC-124, "Idle Air Volume Learning"
.
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-16, "FOR USA AND CANADA : Fluids and Lubricants"
(United
States and Canada).
• 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:
Intake manifold stud
: 9.4 N·m (0.96 kg-m, 83 in-lb)
Use the following for locating bolts and nuts.
M8 x 38 mm (1.50 in) (Color green)
: No. 1, 6
M8 x 35 mm (1.38 in)
: No. 2, 3
Nut
: No. 4, 5
PBIC2988E
PBIC2987E
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
EM-30
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INTAKE MANIFOLD
*Power steering fluid, brake fluid, etc.
Other oils and fluids*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
Exhaust gas
—
Leakage
—
Item
Before starting engine
Engine running
After engine stopped
EXHAUST MANIFOLD AND THREE WAY CATALYST
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EXHAUST MANIFOLD AND THREE WAY CATALYST
Exploded View
INFOID:0000000009478053
Removal and Installation
INFOID:0000000009478054
REMOVAL
1. Disconnect harness connector of air fuel ratio sensor 1, and harness from bracket and middle clamp.
2. Remove air fuel ratio sensor 1 using Tool.
CAUTION:
• Be careful not to damage air fuel ratio sensor 1.
• Discard any air fuel ratio sensor 1 which has been dropped from a height of more than 0.5 m
(19.7 in) onto a hard surface such as a concrete floor; replace with a new one.
3. Remove exhaust front tube. Refer to
4. Remove exhaust manifold cover.
5. Remove bracket between exhaust manifold–three way catalyst assembly and transmission assembly.
1.
Air fuel ratio sensor 1
2.
Exhaust manifold and three way catalyst assembly 3.
Gasket
4.
Bracket
5.
Exhaust manifold cover
WBIA0647E
Tool number
:
—
(J-44626)
EM-32
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EXHAUST MANIFOLD AND THREE WAY CATALYST
6. Loosen nuts in reverse order as shown to remove exhaust man-
ifold and three way catalyst assembly.
7. Remove gasket.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion
• Check the surface distortion of exhaust manifold and three way
catalyst assembly mating surface with straightedge and feeler
gauge.
• If it exceeds the limit, replace exhaust manifold and three way cat-
alyst assembly.
INSTALLATION
installation is in the reverse order of removal.
Exhaust Manifold
1. If stud bolts were removed, install them and tighten to the specified torque.
2. Tighten nuts in numerical order as shown.
3. Tighten nuts in numerical order as shown again.
Air Fuel Ratio Sensor 1
CAUTION:
• Do not over tighten air fuel ratio sensor 1. Doing so may cause damage to air fuel ratio sensor 1,
resulting in the “MIL” coming on.
• Before installing new air fuel ratio sensor 1, clean exhaust system threads using suitable tool and
apply anti-seize lubricant.
PBIC2990E
Limit
: 0.3 mm (0.012 in)
PBIC2991E
Exhaust manifold stud bolt
: 14.7 N·m (1.5 kg-m, 11 ft-lb)
PBIC2990E
Oxygen sensor thread cleaner : — (J-43897-12)
Oxygen sensor thread cleaner : — (J-43897-18)
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