NISSAN LATIO 2007 Service Repair Manual

EM-12Revision: June 2006
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
2007 Versa
Use the Chart Below to Help You Find the Cause of the Symptom.EBS00T5Q
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 related1. Piston pin noise 2. Piston slap noise 3. Main bearing noise
4. Water pump noise 5. Timing chain and tensioner noise 6. Drive belt noise (stick/slipping)
7. Tappet noise 8. Camshaft bearing noise 9. Connecting rod noise
A. Rotational mechanism B. Water pump C. Timing chain
D. Drive belt E. Crankshaft pulley F. A/C compressor
G. Water pump H. Alternator I. Tension pulley
J. Valve mechanism K. Valves
Location
of noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemRefer-
ence page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
Top of
engine
Rocker
cover
Cylinder
headTick ing or
clickingCA—AB—Tappet
noiseValve clearanceEM-107
Rattle C A —ABCCamshaft
bearing
noiseCamshaft journal oil
clearance
Camshaft runoutEM-49EM-49
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 bush-
ing oil clearanceEM-95
EM-97
Slap or
rapA——BBAPiston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-99EM-96
EM-96
EM-97
Knock A B C B B BConnect-
ing rod
bearing
noiseConnecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearanceEM-97EM-101
Knock A B —ABCMain
bearing
noiseMain bearing oil clear-
ance
Crankshaft runoutEM-101EM-100
Front of
engine
Front
coverTapping or
tickingAA—BBBTiming
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-41
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belt
(Sticking
or slip-
ping)Drive belt deflection
EM-13
Creaking A B A B A BDrive belt
(Slipping)Idler pulley bearing
operation
Squall
CreakAB—BABWater
pump
noiseWater pump operationCO-17

DRIVE BELTS
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DRIVE BELTSPFP:02117
ComponentsEBS00U6Z
Checking Drive BeltsEBS00U70
WA RN ING:
Be sure to perform this step when the engine is stopped.

Make sure that the indicator (notch on fixed side) of drive belt auto-tensioner is within the possible use
range (A).
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 (B).

Visually check entire drive belt for wear, damage or cracks.

If the indicator (notch on fixed side) is out of the possible use range or belt is damaged, replace drive belt.
Tension AdjustmentEBS00U71
Belt tension is not necessary, as it is automatically adjusted by drive belt auto-tensioner.
Removal and InstallationEBS00U72
REMOVAL
1. 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).
CAUTION:
Never place hand in a location where pinching may occur if
the holding tool accidentally comes off.
2. Insert a rod such as short-length screwdriver approximately 6
mm (0.24 in) in diameter into the hole (B) of the retaining boss to
fix drive belt auto-tensioner.
3. Remove drive belt.
1. Alternator 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

EM-14Revision: June 2006
DRIVE BELTS
2007 Versa
INSTALLATION
1. Hold the hexagonal part (A) of drive belt auto-tensioner (1) with
a box wrench securely. Then move the wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
Never place hand in a location where pinching may occur if
the holding tool accidentally comes off.
2. Insert a rod such as short-length screwdriver approximately 6
mm (0.24 in) in diameter into the hole (B) of retaining boss to fix
drive belt auto-tensioner.
3. Install drive belt.
CAUTION:

Confirm drive belt is completely set to pulleys.

Check for engine oil, working fluid and engine coolant are not adhered to drive belt and each
pulley groove.
4. Release drive belt auto-tensioner, and apply tension to drive belt.
5. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
6. Confirm tension of drive belt at indicator (notch on fixed side) is within the possible use range. Refer to
EM-13, "
Checking Drive Belts" .
ComponentsEBS00U73
Removal and Installation of Drive Belt Auto-TensionerEBS00U74
REMOVAL
1. Remove drive belt. Refer to EM-13, "Removal and Installation" .
2. Release the fixed drive belt auto-tensioner pulley.
3. Loosen bolt and remove drive belt auto-tensioner.
PBIC3936E
1. Front cover 2. Drive belt auto–tensioner 3. Idler pulley (models without A/C)
4. Bracket (models without A/C) 5. Shaft (models without A/C)
PBIC4698E

DRIVE BELTS
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NOTE:
Use TORX socket (size T50).
4. Remove idler pulley and bracket (models without A/C).
INSTALLATION
Installation is 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, replace drive belt auto-tensioner and/or idler pulley.

EM-16Revision: June 2006
AIR CLEANER AND AIR DUCT
2007 Versa
AIR CLEANER AND AIR DUCTPFP:16500
ComponentsEBS00T5V
Removal and InstallationEBS00T5W
REMOVAL
1. Remove the air duct (inlet).
2. Remove the air cleaner filter from the air cleaner case. Refer to EM-17, "
Changing Air Cleaner Filter" .
3. Remove the air duct [between air duct (inlet) and air cleaner case] from the air cleaner case.
4. Remove the PCV hose.
5. Remove the air duct (between air cleaner case and electric throttle control actuator).

Add marks as necessary for easier installation.
6. Remove air cleaner case with the following procedure.
a. Remove battery. Refer to SC-4, "
BATTERY" .
b. Disconnect harness connector from mass air flow sensor.
c. Remove the air cleaner case.
7. 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.
INSTALLATION
Installation is in the reverse order of removal.
1. Air cleaner filter 2. Mass air flow sensor 3. O-ring
4. Holder 5. Air cleaner cover 6. Air duct
7. PCV hose 8. Clip 9. Air duct (Inlet)
10. Resonator 11. Air duct 12. Grommet
13. Air cleaner case A. To electric throttle control actuator B. To rocker cover
WBIA0770E

AIR CLEANER AND AIR DUCT
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Align marks.

Attach each joint securely.

Screw clamps firmly.
Changing Air Cleaner FilterEBS00T5X
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 forward (C) and remove it.
3. Remove the air cleaner filter (1) and holder (2) assembly from
the air cleaner case.
4. Remove the air cleaner filter from the holder.
INSPECTION AFTER REMOVAL
It is necessary to replace it at the recommended intervals, more often under dusty driving conditions. Refer to
MA-7, "
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

EM-18Revision: June 2006
INTAKE MANIFOLD
2007 Versa
INTAKE MANIFOLDPFP:14003
ComponentsEBS00U7C
Removal and InstallationEBS00U7D
REMOVAL
1. Remove engine cover (1).
2. Drain engine coolant. Refer to CO-8, "
DRAINING ENGINE
COOLANT" .
CAUTION:
Perform this step when engine is cold.
NOTE:
This step is unnecessary when putting plugs to water hoses (to
electronic throttle control actuator)
a. Disconnect water hoses from electronic throttle control actuator.
b. Remove electronic throttle control actuator.
CAUTION:

Handle carefully to avoid any shock to electric throttle control actuator.

Never disassemble.
3. Remove oil level gauge.
CAUTION:
Cover the oil level gauge guide openings to avoid entry of foreign materials.
1. Hose clamp 2. Bracket 3. PCV hose
4. Gasket 5. Intake manifold 6. O-ring
7.EVAP canister purge volume control
solenoid valve8. Electric throttle control actuator 9. Gasket
WBIA0771E
WBIA0777E

INTAKE MANIFOLD
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4. Loosen and remove intake manifold (1) bolts (A) (B).
5. Loosen bolts in reverse order as shown.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
6. Remove EVAP canister purge volume control solenoid valve
from intake manifold, if necessary.
CAUTION:
Handle it carefully and avoid impacts.
7. Remove intake manifold.
INSTALLATION
1. Install intake manifold.
NOTE:
Be sure the intake manifold gasket is seated correctly in groove of intake manifold.
2. Tighten bolts in numerical order as shown.
: Engine front
PBIC3939E
: Engine front
PBIC3527J
: Engine front
WBIA0788E

EM-20Revision: June 2006
INTAKE MANIFOLD
2007 Versa
3. Tighten intake manifold bolt (A). Then tighten intake manifold
bolt (B).
4. Install electronic throttle control actuator
5. Install water hoses (3), (5) to electronic throttle control actuator
as shown.
6. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant. Refer to CO-8, "CHECKING COOLING SYSTEM FOR LEAKS" .

Start and warm up the engine. Visually check for engine coolant leaks.
1 : Intake manifold
: Engine front
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

EXHAUST MANIFOLD
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EXHAUST MANIFOLDPFP:14004
ComponentsEBS00U7E
Removal and InstallationEBS00U7F
REMOVAL
1. Remove exhaust front tube. Refer to EX-4, "Removal and Installation" .
2. Remove exhaust manifold cover.
3. Remove the A/F sensor 1, using Tool (A).
CAUTION:
Handle it carefully and avoid impacts.
4. Remove exhaust manifold side bolt of exhaust manifold stay.
1. Exhaust manifold cover 2. Exhaust manifold 3. Gasket
4. Stud bolt 5. Bracket 6. A/F ratio sensor 1
7. Exhaust manifold stay Engine front
WBIA0778E
Tool number :KV991J0050 (J-44626)
WBIA0772E