2002 NISSAN TERRANO check engine

Checking Idle Speed
Preparation
1. Make sure that injection timing is correct.
2. Make sure that injection nozzle are in good condition.
3. Make sure that the following parts are in good condition.
IAir cleaner clogging
IGlow system
IEngine oil and coolant levels
IValve clearance
IAir intake system (Oil filler cap, oil level gauge, etc.)
4. Set shift lever in ªNeutralº position. Engage parking brake and
lock both front and rear wheels with wheel chocks.
5. Turn off air conditioner, lights and accessories.
IWarm up engine until water temperature indicator points to middle of gauge.
ILights, heater fan and all accessories are off.
IAttach tachometer's pick-up to No. 1 fuel injection tube.
In order to take accurate reading of engine rpm, remove clamps that secure No. 1 fuel injection tube.
Start engine.
SMA406B
SMA021A
Run engine at about 2,000 rpm for
about 2 minutes under no-load.
Run engine for one minute at idle
speed.F
Check idle speed.
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IDLE SPEED:
700+ 50 rpm
OK
ENGAdjust idle speed by turning idle speed adjust-
ing screw.
EMA049
END
IRace engine two or three times and allow engine to return to idle speed. If idle speed is not within
the specified range, check acceleration linkage for binding and correct it if necessary.
H
H
H
H
H
ENGINE MAINTENANCETD
MA-26

AIR CONDITIONER EQUIPPED MODEL
1. Make certain that the clearance between the actuator idle con-
trol lever pin and the injection pump control lever is within the
specified limits.
2. Adjust idle speed to specified rpm without the air conditioner
operating.
3. Then check the idle speed when the air conditioner is operat-
ing and make sure it is correct.
Unit: rpm
Idle speed (Air conditioner: ªONº) 850 50
If not, adjust it by turning FICD actuator stroke adjusting screw.
SMA794B
ENGINE MAINTENANCETD
Checking Idle Speed (Cont'd)
MA-27

Checking Tightening Torque
Checking should be performed while engine is cold.
MANIFOLD BOLTS AND NUTS
Intake and exhaust manifolds:
Intake
:25-28N×m (2.5 - 2.9 kg-m, 18 - 20 ft-lb)
Exhaust
:40-49N×m (4.0 - 4.5 kg-m, 29 - 36 ft-lb)
Adjusting Intake and Exhaust Valve Clearance
Refer to EM section.
Checking Drive Belt
IBecause an auto tensioner adjustment mechanism is
provided, it is not necessary to check or adjust the tension
of accessory belt.
1. Inspect for cracks, fraying, wear or oil adhesion. Replace if
necessary.
The belts should not touch the bottom of the pulley groove.
2. Check the damper unit of the auto tensioner for oil leaks.
Part Belt specifications Tension Belt deflection
Water pump, alternator, air con-
ditioner compressor beltV-ribbed belt (7 ribs)Automatic adjustment by auto
tensionerAutomatic adjustment by auto
tensioner
JMA088D
ENGINE MAINTENANCEZD
MA-28

Removal
WATER PUMP, ALTERNATOR AND AIR CONDITIONER
BELT
1. Remove radiator shroud.
2. Contract and hold the auto tensioner using the following proce-
dure.
a. Securely hold the 19 mm (0.75 in) hexagonal portion A of auto
tensioner with a closed wrench.
IPreferably use a tool with a handhold of 500 mm (19.69 in) or
more in length.
INo bolts or nuts are required to be loosened during the opera-
tion.
b. Turn the hexagonal portion A in the direction shown by the
arrow to contract the damper unit of the auto tensioner.
CAUTION:
IBecause the tensioner has a high tension, it shall be
securely held and turned with a closed wrench.
IBecause the hexagonal portion A of the tensioner is made
of aluminum and may be damaged by sudden input, turn
it slowly according to the contraction of the damper unit.
3. Remove the belt from the alternator pulley first, and then
remove it from the other pulleys.
IIf the tensioner is not held firmly, your finger may get caught
between the belt and the pulleys. Confirm the holding of the
tensioner, and then hold the belt side in the place away from
the pulleys to attach or remove the belt, paying attention to
prevent your finger from being caught.
CAUTION:
IWhen handling the belt, pay attention to prevent the oil or
coolant from adhering to the belt.
IDo not distort or bend the belt intensively.
Installation
IInstall the belt in the reverse order of removal.
IAfter installation of the belt, confirm that the belt engages the
pulleys securely.
IDepending on the engagement between the belt and the idler
pulley, noise (belt noise) may be heard when the engine is
started just after installation. This noise will stop with time.
Changing Engine Oil
WARNING:
IBe careful not to burn yourself, as engine oil is hot.
IProlonged and repeated contact with used engine oil may
cause skin cancer; try to avoid direct skin contact with
used oil. If skin contact is made, wash thoroughly with
soap or hand cleaner as soon as possible.
1. Warm up engine, and check for oil leakage from engine com-
ponents.
2. Remove drain plug and oil filler cap.
SMA101D
ENGINE MAINTENANCEZD
MA-29

3. Drain oil and fill with new engine oil.
Oil grade:
API CF4 or ACEA B3-96.98 or ACEA B3/E3-96.98
Viscosity:
See ªRECOMMENDED FLUIDS AND
LUBRICANTSº, MA-1009.
Refill oil capacity (approximate):
Without oil filter change
5.2(4-5/8 Imp qt)
With oil filter change
5.7(5 Imp qt)
CAUTION:
IBe sure to clean and install oil pan drain plug with washer.
Drain plug:
:54-58N×m (5.5 - 6.0 kg-m, 40 - 43 ft-lb)
IThe refill capacity changes depending on the oil tempera-
ture and drain time; use these valves as a reference and be
certain to check with the dipstick when changing the oil.
4. Check oil level.
5. Start engine. Check area around drain plug and oil filter for any
sign of oil leakage.
6. Run engine for a few minutes, then turn it off. After 10 minutes
check oil level.
Changing Engine Oil Filter
REMOVAL
1. Insert a suitable tool with a 12.7 mm square (1/2 inch square)
such as an extension bar and ratchet handle into the filter body,
and loosen the body by approximately 4 turns.
WARNING:
Be careful not to burn yourself, as the engine and engine oil
are hot.
SMA102D
JMA103D
JMA104D
ENGINE MAINTENANCEZD
Changing Engine Oil (Cont'd)
MA-30

2. Set theGmark of the filter body to the top position and dis-
charge the oil.
IReceive the oil discharged from the drain hose in a tray.
IAbout 500 cc (17.6 Imp fl oz) of oil will be discharged in about
3 minutes.
IThe oil is discharged from the oil catcher to under the vehicle
through the drain hose.
3. Remove the filter body, and then remove the oil filter element.
CAUTION:
IIf the engine oil gets on the engine or vehicle, thoroughly
wipe it off.
IThoroughly wipe off the oil remaining in the oil catcher.
(This is to prevent misidentifying oil leaking from the oil
catcher as oil leaking from the engine.)
4. Remove the O-ring from the filter body.
IPress the O-ring in any direction with your finger, and pull on
the portion of the O-ring separated from the filter body to
remove it.
CAUTION:
Because wire and screwdrivers may cause damage to the fil-
ter body, do not use such tools.
INSTALLATION
1. Thoroughly remove foreign matter adhering to the inside of fil-
ter body and O-ring mounting areas (of the body and oil cooler).
2. Install the oil filter element and O-ring to the filter body.
ISecurely press the oil filter element into the filter body.
3. Install the filter body.
:20-24N×m (2.0 - 2.5 kg-m, 15 - 18 ft-lb)
4. After warming up the engine, check that no engine oil leaks.
Changing Engine Coolant
WARNING:
To avoid the danger of being scalded, never change the cool-
ant when the engine is hot.
ÐDRAINING ENGINE COOLANTÐ
1. Move heater TEMP control knob all the way to HOT.
2. Remove undercover and disconnect lower radiator hose to
drain coolant.
3. Remove radiator filler cap.
JMA105D
JMA106D
YMA015
ENGINE MAINTENANCEZD
Changing Engine Oil Filter (Cont'd)
MA-31

4. Remove cylinder block drain plug located at left center of cyl-
inder block.
5. Remove reservoir tank and drain coolant.
ÐREFILLING ENGINE COOLANTÐ
6. Install reservoir tank, radiator drain plug, and cylinder block
drain plugs.
IApply sealant to the thread of cylinder block drain plug.
Cylinder block drain plug:
:24-26N×m (2.4 - 2.7 kg-m, 18 - 19 ft-lb)
7. Move heater TEMP control knob all the way to HOT.
8. Fill radiator with coolant up to the filler neck.
For coolant mixture ratio, refer to MA-19.
9. Fill reservoir tank with coolant up to the MAX level.
Coolant capacity (With reservoir tank):
10.6(9-3/8 Imp qt)
Reservoir tank capacity (for MAX level):
0.75(5/8 Imp qt)
Pour coolant through coolant filler neck slowly to allow air in
system to escape.
10. Install radiator cap.
11. Warm up engine to normal operating temperature.
12. Run engine at 2,000 rpm for 10 seconds and return to idle
speed.
IRepeat 2 or 3 times.
Watch coolant temperature gauge so as not to overheat the
engine.
13. Stop engine and cool it down.
ICool down using a fan to reduce the time.
14. Remove the radiator cap and check coolant level.
IIf necessary, refill radiator up to filler neck with coolant.
15. Refill reservoir tank to Max line with coolant.
16. Repeat step 9 through step 15 two or more times.
17. Warm up engine, and check for sound of coolant flow while
running engine from idle up to 2,000 rpm with heater tempera-
ture control set at several positions between COOL and HOT.
ISound may be noticeable at heater water core.
18. If sound is heard, bleed air from cooling system by repeating
steps 11 through 17 until coolant level no longer drops.
IClean excess coolant from engine.
Checking Cooling System
CHECKING HOSES AND CLAMPS
Check hoses and clamps for proper attachment, leaks, cracks,
damage, loose connections, chafing and deterioration.
SMA108D
SMA182B
SMA412B
YMA014
ENGINE MAINTENANCEZD
Changing Engine Coolant (Cont'd)
MA-32

CHECKING RADIATOR CAP
Apply pressure to radiator cap (side with pressure valve) with cap
tester to see if it is satisfactory.
Radiator cap relief pressure:
78-98kPa
(0.78 - 0.98 bar, 0.8 - 1.0 kg/cm
2, 11 - 14 psi)
Pull the negative-pressure valve to open it. Check that it closes
completely when released.
CHECKING COOLING SYSTEM FOR LEAKS
Apply pressure to the cooling system with cap tester to check for
leakage.
Testing pressure:
98 kPa (0.98 bar, 1.0 kg/cm
2, 14 psi)
CAUTION:
Use of higher pressure than the specified value may cause
damage to radiator.
Checking and Replacing Fuel Filter and
Draining Water
Be careful not to spill fuel in engine compartment. Place a rag
to absorb fuel.
CHECKING FUEL FILTER
Check fuel filter for fuel leakage, damage and other abnormal
signs.
REPLACING FUEL FILTER
1. Disconnect harness connector and drain fuel.
2. Remove fuel filter using band-type filter wrench.
3. Remove fuel filter and fuel filter sensor.
CAUTION:
Remove fuel filter without spilling fuel. If spilt, wipe off imme-
diately. Be specially careful not to spill fuel on engine mount
insulator.
SLC613
SMA871B
JMA110D
DMA011
SMA111D
ENGINE MAINTENANCEZD
Checking Cooling System (Cont'd)
MA-33