NISSAN LATIO 2011 Service Repair Manual

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGEM-131
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OUse the Chart Below to Help You
Find the Cause of the SymptomINFOID:0000000005930996
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
A: Closely related B: Related C: Sometimes related —: Not relatedD. Drive belt
E. Crankshaft pulleyF. A/C compressor
G. Water pump H. GeneratorI. Tension pulley
J. Valve mechanism K. Valves
Location of noise Type of
noise Operating condition of engine
Source of noise Check item
Refer-
ence page
Before
warm-
up After
warm-
up When
start-
ing When
idling When
racing While
driving
Top of en-
gine
Rocker
cover
Cylinder
head Ticking or
clicking
CA—AB—
Tappet
noiseValve clearance
EM-230
Rattle C A — A B C Camshaft
bearing
noiseCamshaft journal oil
clearance
Camshaft runout
EM-170EM-170
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock
—A—BB—
Piston pin
noisePiston to piston pin oil
clearance
Connecting rod bushing
oil clearance
EM-219
EM-219
Slap or
rap
A——BBA
Piston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion EM-219EM-219
EM-219
EM-219
Knock A B C B B B
Connect-
ing rod
bearing
noiseConnecting rod bushing
oil clearance
Connecting rod bearing
oil clearance
EM-219EM-219
Knock A B — A B C
Main bear-
ing noiseMain bearing oil clear-
ance
Crankshaft runout EM-219EM-219
Front of
engine
Front cov-
erTapping or
ticking
AA—BBB Timing
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operation
EM-160
Front of
engineSqueak-
ing or fizz-
ing
AB—B—C Drive belt
(Sticking
or slip-
ping)Drive belt deflection
EM-132
CreakingA B ABAB Drive belt
(Slipping)Idler pulley bearing op-
eration
Squall
Creak AB—BAB Water
pump
noiseWater pump operation
CO-45
Revision: May 2010 2011 Versa

EM-132
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DRIVE BELTS
DRIVE BELTS
ComponentINFOID:0000000005930997
Checking Drive BeltsINFOID:0000000005930998
WARNING:
Be sure to perform this step
when the engine is stopped.
NOTE:
On vehicles not equipped with A/C, there is an idler pulley in the position for the drive belt routing.
• Make sure that the indicator (notch on fixed side) of drive belt auto-tensioner is within the possible use
range.
NOTE:
• Check the drive belt auto-tensioner indication when the engine is cold.
• When new drive belt is installed, the indicator (notch on fixed side) should be within the range.
• Visually check entire drive belt for wear, damage or cracks.
• If the indicator (notch on fixed side) is out of t he possible use range or belt is damaged, replace drive belt.
Tension AdjustmentINFOID:0000000005930999
Belt tension is not necessary, as it is automatically adjusted by drive belt auto-tensioner.
Removal and InstallationINFOID:0000000005931000
REMOVAL
1. Remove fender protector (RH). Refer to EI-26, "Removal and Installation".
2. Hold the hexagonal part (A) of drive belt auto-tensioner (1) with a wrench securely. Then move the wrench handle in the direc-
tion of arrow (loosening direction of tensioner).
WARNING:
Never place hand in a location where pinching may occur if
the holding tool acci dentally comes off.
CAUTION:
Do not loosen the auto-tensione r pulley bolt. (Do not turn it
counterclockwise.) If turned counterclockwise, the com-
plete auto-tensioner must be replaced as a unit, including
pulley.
3. Insert a rod such as short-length screwdriver approximately 6 mm (0.24 in) in diameter into the hole (B) of t he retaining boss to fix drive belt auto-tensioner.
• Leave tensioner pulley arm locked until belt is installed again.
4. Remove drive belt.
INSTALLATION
1. Generator 2. Drive belt auto–tensioner 3. Crankshaft pulley
4. A/C compressor (models with A/C)
Idler pulley (models without A/C) 5. Water pump
6. Drive belt
A. Possible use range B. Range when new drive belt is installed C. Indicator
PBIC3137J
PBIC3936E
Revision: May 2010 2011 Versa

DRIVE BELTSEM-133
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1. Install drive belt.
CAUTION:
Confirm drive belt is completely set to pulleys.
2. Release drive belt auto-tensioner, and apply tension to drive belt. WARNING:
Never place hand in a location where pinching m ay occur if the holding tool accidentally comes
off.
CAUTION:
Make sure no oil/fluid in cluding engine oil and engine coolan t drips onto the belt or pulley.
3. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
4. Confirm tension of drive belt at indicator (notch on fixed side) is within the possible use range. Refer to
EM-132, "
Checking Drive Belts".
5. Install fender protector (RH). Refer to EI-26, "
Removal and Installation".
ComponentINFOID:0000000005931001
Removal and Installation of Drive Belt Auto TensionerINFOID:0000000005931002
REMOVAL
CAUTION:
The complete auto-tensioner must be re placed as a unit, including the pulley.
1. Remove drive belt. Refer to EM-132, "
Removal and Installation".
2. Support the engine and remove the torque rod (RH), engine mounting insulator (RH) and engine mount- ing bracket (RH). Refer to EM-197, "
Component".
3. Release the fixed drive belt auto-tensioner pulley.
4. Loosen bolt and remove drive belt auto-tensioner. NOTE:
Use TORX socket (size T50).
1. Front cover 2. Drive belt auto–tensioner3. Idler pulley (models without A/C)
4. Bracket (models without A/C) 5. Shaft (models without A/C)
PBIC4698E
Revision: May 2010 2011 Versa

EM-134
< SERVICE INFORMATION >[MR18DE]
DRIVE BELTS
5. Remove idler pulley and bracket (models without A/C).
CAUTION:
Do not loosen the auto-tensioner pulley bolt. (Do no t turn it counterclockwise). If turned counter-
clockwise, the complete auto-tensioner must be replaced as a unit, including pulley.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• When installing drive belt auto-tensioner, be careful not to interfere with water pump pulley.
• If there is damage greater than peeled paint, re place drive belt auto-tensioner and/or idler pulley, if
equipped.
• Install the drive belt auto-t ensioner carefully so not to damage the water pump pulley.
• Do not swap the pulley between the new and old auto-tensioner units
Revision: May 2010 2011 Versa

AIR CLEANER AND AIR DUCTEM-135
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AIR CLEANER AND AIR DUCT
ComponentINFOID:0000000005931003
Removal and InstallationINFOID:0000000005931004
REMOVAL
1. Remove the engine room cover (1).
2. Remove the air duct (front).
3. Remove the air cleaner filter from the air cleaner case. Refer to
EM-136, "
Changing Air Cleaner Filter".
4. Remove the air duct (inlet) from the air cleaner case.
5. Remove the PCV hose.
6. Remove the air duct. • Add marks as necessary for easier installation.
7. Remove air cleaner case with the following procedure.
a. Remove battery. Refer to SC-5
.
b. Disconnect harness connector from mass air flow sensor.
c. Remove the air cleaner case.
8. Remove the mass air flow sensor from the air cleaner case, if necessary. CAUTION:
• Handle it carefully and avoid impacts.
• Do not touch sensor part.
1. Air cleaner filter 2. Holder 3. Air cleaner cover
4. Seal 5. Mass air flow sensor 6. Air duct
7. PCV hose 8. Air duct (Inlet) 9. Air duct (Front)
10. Clip 11. Resonator 12. Grommet
13. Air cleaner case A. To electric throttle control actuator B. To rocker cover
WBIA0770E
WBIA0845E
Revision: May 2010 2011 Versa

EM-136
< SERVICE INFORMATION >[MR18DE]
AIR CLEANER AND AIR DUCT
INSTALLATION
Installation is in the reverse order of removal.
• Align marks.
• Attach each joint securely.
• Screw clamps firmly.
Changing Air Cleaner FilterINFOID:0000000005931005
REMOVAL
1. Push the tabs (A) of both ends of the air cleaner cover (1) into
the inside (B).
2. Pull up the air cleaner cover (1) and remove it (C).
3. Remove the air cleaner filter (1) and holder (2) assembly from the air cleaner case.
4. Remove the air cleaner filter (1) from the holder (2).
INSPECTION AFTER REMOVAL
It is necessary to replace the air cleaner filter at the recommended intervals, more often under dusty driving
conditions. Refer to MA-9, "
Introduction of Periodic Maintenance".
INSTALLATION
Installation is in the reverse order of removal.
• Install the air cleaner cover (1) in the direction shown.
• Air cleaner filter (2)
• Holder (3)
PBIC3557J
PBIC3558J
PBIC3559J
Revision: May 2010 2011 Versa

INTAKE MANIFOLDEM-137
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INTAKE MANIFOLD
ComponentINFOID:0000000005931006
Removal and InstallationINFOID:0000000005931007
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the coolant when the engine is hot.
1. Remove engine room cover (1).
2. Remove air duct, air duct (inlet) and air duct (front). Refer to
EM-
135, "Component".
3. Disconnect the EVAP canister purge volume control solenoid valve.
4. Partially drain engine coolant. Refer to CO-36, "
Changing
Engine Coolant".
CAUTION:
Perform this step when engine is cold.
NOTE:
This step is unnecessary when putting plugs to water hoses (to
electric throttle control actuator).
a. Disconnect water hoses from electr ic throttle control actuator.
b. Remove electric throttle control actuator. CAUTION:
• Handle electric throttle control act uator carefully and avoid impacts.
1. PCV hose 2. Gasket 3. Intake manifold
4. Bracket 5. O-ring 6. EVAP canister purge volume control
solenoid valve
7. Water hose 8. Water hose 9. Electric throttle control actuator
10. Gasket A. To water outlet
WBIA0771E
WBIA0845E
Revision: May 2010 2011 Versa

EM-138
< SERVICE INFORMATION >[MR18DE]
INTAKE MANIFOLD
• Never disassemble or adjust el
ectric throttle control actuator.
5. Remove the PCV hose and the vacuum hose.
6. Remove oil level gauge. CAUTION:
Cover the oil level gauge gu ide openings to avoid entry of foreign materials.
7. Loosen and remove intake manifold (1) bolts (A) (B).
8. Loosen remaining intake manifold bolts in the reverse order as shown.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
9. Remove EVAP canister purge volume control solenoid valve from intake manifold, if necessary.
CAUTION:
Handle EVAP canister purge vo lume control solenoid valve
carefully and avoid impacts.
10. Remove intake manifold.
INSTALLATION
1. Install intake manifold. NOTE:
Be sure the intake manifold gasket is seat ed correctly in groove of intake manifold.
2. Tighten bolts in numerical order as shown.
: Engine front
PBIC3939E
: Engine front
PBIC3527J
: Engine front
WBIA0788E
Revision: May 2010 2011 Versa

INTAKE MANIFOLDEM-139
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3. Tighten intake manifold bolt (A). Then tighten intake manifold
bolt (B).
4. Install electric throttle control actuator.
5. Install water hoses (3), (5) to electric throttle control actuator as shown.
6. Installation of the remaining components is in the reverse order of removal.
InspectionINFOID:0000000006413278
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
Fluids and Lubricants".
• 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.
1 : Intake manifold
: Engine front
Intake manifold bolt (A) : 19.6 N·m (2.0 kg-m, 14 ft-lb)
Intake manifold bolt (B) : 19.6 N·m (2.0 kg-m, 14 ft-lb)
PBIC3939E
1 : Electric throttle control actuator
2: Clamp
4 : Water outlet
A : Paint Mark
B : The clamp shall not interfere with the bulged section.
PBIC4703E
Revision: May 2010 2011 Versa

EM-140
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INTAKE MANIFOLD
• Start engine. With engine speed increased, che
ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
• 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:
*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakage Leakage
Exhaust gas —Leakage —
Revision: May 2010 2011 Versa