2003 NISSAN TEANA check engine

OIL PUMP
LU-25
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
LU

OIL PUMPPFP:15010
Removal and InstallationBBS004WO
REMOVAL
1. Remove oil pans (lower and upper) and oil strainer. Refer to EM-145, "OIL PAN AND OIL STRAINER" .
2. Remove front timing chain case and timing chain (primary). Refer to EM-173, "
TIMING CHAIN" .
3. Remove oil pump assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.

When installing, align crankshaft flat faces with inner rotor flat faces.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer to LU-19, "ENGINE OIL" .
2. Start engine, and check there is no leaks of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check the engine oil level and add engine oil. Refer to LU-19, "
ENGINE OIL" .
Disassembly and AssemblyBBS004WP
DISASSEMBLY
1. Remove oil pump cover.
2. Remove oil pump inner rotor and oil pump outer rotor from oil pump body.
3. After removing regulator valve plug, remove regulator valve spring and regulator valve.
1. Oil pump body 2. Oil pump outer rotor 3. Oil pump inner rotor
4. Oil pump cover 5. Regulator valve plug 6. Regulator valve spring
7. Regulator valve
PBIC2509E

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
C
D
E
F
G
H
I
J
K
M
SECTION MA
A
B
MA

MAINTENANCE
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
DESCRIPTION ............................................................ 4
Pre-Delivery Inspection Items .................................. 4
GENERAL MAINTENANCE ....................................... 6
General Maintenance ............................................... 6
OUTSIDE THE VEHICLE ...................................... 6
INSIDE THE VEHICLE .......................................... 6
UNDER THE HOOD AND VEHICLE .................... 7
PERIODIC MAINTENANCE ....................................... 8
Periodic Maintenance ............................................... 8
ENGINE AND EMISSION CONTROL MAINTE-
NANCE .................................................................. 8
CHASSIS AND BODY MAINTENANCE ............... 9
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 10
ENGINE AND EMISSION CONTROL MAINTE-
NANCE ................................................................. 11
CHASSIS AND BODY MAINTENANCE ............. 12
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 13
RECOMMENDED FLUIDS AND LUBRICANTS ...... 14
Fluids and Lubricants ............................................. 14
SAE Viscosity Number ........................................... 15
GASOLINE ENGINE ........................................... 15
Anti-Freeze Coolant Mixture Ratio ......................... 15
ENGINE MAINTENANCE (QR20DE) ....................... 16
Checking Drive Belts .............................................. 16
Tension Adjustment ................................................ 16
Changing Engine Coolant ...................................... 16
DRAINING ENGINE COOLANT ......................... 16
REFILLING ENGINE COOLANT ........................ 17
FLUSHING COOLING SYSTEM ......................... 18
Checking Cooling System ...................................... 18
CHECKING COOLING SYSTEM HOSES .......... 19
CHECKING RADIATOR CAP .............................. 19
CHECKING RADIATOR SYSTEM FOR LEAKS ... 20
Checking Fuel Lines ............................................... 20
Changing Air Cleaner Filter .................................... 20VISCOUS PAPER TYPE ..................................... 20
Changing Engine Oil ............................................... 20
Changing Oil Filter .................................................. 21
REMOVAL ........................................................... 21
INSTALLATION ................................................... 22
INSPECTION AFTER INSTALLATION ................ 22
Checking and Changing Spark Plugs ..................... 22
REMOVAL ........................................................... 22
INSPECTION AFTER REMOVAL ....................... 23
INSTALLATION ................................................... 23
Checking EVAP Vapor Lines .................................. 23
ENGINE MAINTENANCE (VQ23DE AND VQ35DE) ... 24
Checking Drive Belts .............................................. 24
Tension Adjustment ................................................ 24
ALTERNATOR AND A/C COMPRESSOR BELT ... 25
POWER STEERING OIL PUMP BELT ................ 25
Changing Engine Coolant ....................................... 25
DRAINING ENGINE COOLANT .......................... 26
REFILLING ENGINE COOLANT ......................... 26
FLUSHING COOLING SYSTEM ......................... 27
Checking Cooling System ...................................... 28
CHECKING COOLING SYSTEM HOSES ........... 28
CHECKING RADIATOR CAP .............................. 28
CHECKING RADIATOR ...................................... 29
CHECKING COOLING SYSTEM FOR LEAKS ... 29
Checking Fuel Lines ............................................... 30
Changing Air Cleaner Filter .................................... 30
VISCOUS PAPER TYPE ..................................... 30
Changing Engine Oil ............................................... 30
Changing Oil Filter .................................................. 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 31
INSPECTION AFTER INSTALLATION ................ 32
Changing Spark Plug (Platinum-Tipped Type) ....... 32
REMOVAL ........................................................... 32
INSPECTION AFTER REMOVAL ....................... 32
INSTALLATION ................................................... 33
Checking Positive Crankcase Ventilation System ... 33
PCV (POSITIVE CRANKCASE VENTILATION)
VALVE ................................................................. 33

MA-2 PCV VALVE VENTILATION HOSE ...................... 34
Checking EVAP Vapor Lines .................................. 34
CHASSIS AND BODY MAINTENANCE ................... 35
Checking Exhaust System ...................................... 35
Checking A/T Fluid ................................................. 35
Changing A/T Fluid ................................................. 36
Checking CVT Fluid ................................................ 36
Changing CVT Fluid ............................................... 38
Balancing Wheels (Bonding Weight Type) ............. 38
REMOVAL ........................................................... 38
WHEEL BALANCE ADJUSTMENT ..................... 38
Tire Rotation ........................................................... 40
Checking Brake Fluid Level and Leaks .................. 40
Checking Brake Lines and Cables ......................... 40
Changing Brake Fluid ............................................. 40
Checking Disc Brake .............................................. 41
ROTOR ................................................................ 41
CALIPER ............................................................. 41
PAD ..................................................................... 41
Checking Steering Gear and Linkage ..................... 41
STEERING GEAR ............................................... 41
STEERING LINKAGE .......................................... 41
Checking Power Steering Fluid and Lines .............. 42
Axle and Suspension Parts ..................................... 42
Drive Shaft .............................................................. 43
Lubricating Locks, Hinges and Hood Latch ............ 43Checking Seat Belt, Buckles, Retractors, Anchors
and Adjusters .......................................................... 44
Checking Body Corrosion ....................................... 45
HEMMED PANELS .............................................. 45
PANEL JOINT ...................................................... 45
PANEL EDGE ...................................................... 45
PARTS CONTACT ............................................... 45
PROTECTORS .................................................... 45
ANTI-CORROSION MATERIALS ........................ 45
DRAIN HOLES ..................................................... 45
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 46
Standard and Limit .................................................. 46
BELT DEFLECTION (QR20DE) ........................... 46
BELT DEFLECTION (VQ23DE AND VQ35DE) ... 46
ENGINE COOLANT CAPACITY (APPROXI-
MATE) (QR20DE) ................................................ 46
ENGINE COOLANT CAPACITY (APPROXI-
MATE) (VQ23DE AND VQ35DE) ......................... 46
RADIATOR ........................................................... 46
ENGINE OIL CAPACITY (APPROXIMATE)
(QR20DE) ............................................................ 46
ENGINE OIL CAPACITY (APPROXIMATE)
(VQ23DE AND VQ35DE) ..................................... 47
SPARK PLUG (PLATINUM-TIPPED TYPE)
(QR20DE, VQ23DE AND VQ35DE) .................... 47
WHEEL BALANCE .............................................. 47

MA-4
DESCRIPTION

DESCRIPTIONPFP:00000
Pre-Delivery Inspection ItemsBLS0005D
Shown below are Pre-delivery Inspection Items required for the new vehicle. It is recommended that
necessary items other than those listed here be added, paying due regard to the conditions in each
country.
Perform applicable items on each model. Consult text of this section for specifications.
UNDER HOOD — engine off
Radiator coolant level and coolant hose connections for leaks
Battery fluid level, specific gravity and conditions of battery terminals
Drive belts tension
Fuel lines and connections for leaks
Engine oil level and oil leaks
Brake reservoir fluid level and fluid lines for leaks
Windshield and rear window washer and headlamp cleaner reservoir fluid level
Power steering reservoir fluid level and hose connections for leaks
ON INSIDE AND OUTSIDE
Remove front spring/strut spacer (If applicable)
Operation of all instruments, gauges, lights and accessories
Operation of horn(s), wiper and washer
Steering lock for operation
Check air conditioner for gas leaks
Front and rear seats, and seat belts for operation
All moldings, trims and fittings for fit and alignment
All windows for operation and alignment
Hood, trunk lid, door panels for fit and alignment
Latches, keys and locks for operation
Weatherstrips for adhesion and fit
Headlamp aiming
Tighten wheel nuts (Inc. inner nuts if applicable)
Tire pressure (Inc. spare tire)
Check front wheels for toe-in
Install clock/voltmeter/room lamp fuse (If applicable)
Install deodorizing filter to air conditioner (If applicable)
Remove wiper blade protectors (If applicable)
UNDER BODY
Transfer and differential gear oil level
Brake and fuel lines and oil/fluid reservoirs for leaks
Tighten bolts and nuts of steering linkage and gear box, suspension, propeller shafts and drive shafts
Tighten rear body bolts and nuts (Models with wooden bed only)
ROAD TEST
Clutch operation
Parking brake operation
Service brake operation
Automatic transmission/transaxle shift timing and kickdown
Steering control and returnables
Engine performance

DESCRIPTION
MA-5
C
D
E
F
G
H
I
J
K
MA
B
MA

Squeaks and rattles
ENGINE OPERATING AND HOT
Adjust idle speed
Automatic transmission/transaxle fluid level
Engine idling and stop knob operation (Diesel only)
FINAL INSPECTION
Install necessary parts (outside mirror, wheel covers, seat belts, mat, carpet or mud flaps)
Inspect for interior and exterior metal and paint damage
Check for spare tire, jack, tools (wheel chock), and literature
Wash, clean interior and exterior
: Not applicable to this model

MA-6
GENERAL MAINTENANCE

GENERAL MAINTENANCEPFP:00000
General MaintenanceBLS0005E
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can perform the
checks and inspections themselves or they can have their NISSAN dealers do them for a nominal charge.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the
vehicle, etc.Item Reference page
TiresCheck the pressure with a gauge periodically when at a service station, includ-
ing the spare, and adjust to the specified pressure if necessary. Check carefully
for damage, cuts or excessive wear.—
WindshieldClean the windshield on a regular basis.
Check the windshield at least every six months for cracks or other damage.
Repair as necessary.—
Windshield wiper
bladesCheck for cracks or wear if not functioning correctly. —
Doors and engine
hoodCheck that all doors, the engine hood, the trunk lid and back door operate prop-
erly. Also ensure that all latches lock securely. Lubricate if necessary. Make sure
that the secondary latch keeps the hood from opening when the primary latch is
released.
When driving in areas using road salt or other corrosive materials, check for
lubrication frequently.BL-13
Tire rotationTires should be rotated every 10,000 km (6,000 miles).MA-40
LampsMake sure that the headlamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head-
lamp aim.—
Item Reference page
Warning lamps and
chimesMake sure that all warning lamps and buzzers/chimes are operating properly. —
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.—
Windshield defrosterCheck that air comes out of the defroster outlets properly and in sufficient quan-
tity when operating the heater or air conditioner.—
Steering wheelCheck that it has the specified play.
Check for changes in the steering conditions, such as excessive free play, hard
steering or strange noises.
Free play: Less than 35 mm (1.38 in)—
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly, and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage.MA-44
Accelerator pedalCheck the pedal for smooth operation and make sure the pedal does not catch
or require uneven effort. Keep the floor mats away from the pedal.—
Brake pedal and
boosterCheck the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Be sure to
keep the floor mats away from the pedal.BR-6
, BR-21
Parking brakeCheck that the pedal has the proper travel.PB-2

GENERAL MAINTENANCE
MA-7
C
D
E
F
G
H
I
J
K
MA
B
MA

UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically e.g. each time you check the engine oil or refuel.
Item Reference page
Windshield washer
fluidCheck that there is adequate fluid in the tank. —
Engine coolant levelCheck the coolant level when the engine is cold.MA-25
Engine oil levelCheck the level after parking the vehicle (on level ground) and turning off the
engine.MA-30
Brake fluid levelMake sure that the brake fluid level is between the “MAX” and “MIN” lines on the
reservoir.MA-40
BatteryCheck the fluid level in each cell. It should be between the “MAX” and “MIN”
lines.—
Fluid leaksCheck under the vehicle for fuel, oil, water or other fluid leaks after the vehicle
has been parked for a while. Water dripping from the air conditioner after use is
normal. If you should notice any leaks or gasoline fumes are evident, check for
the cause and correct it immediately.—

MA-8
PERIODIC MAINTENANCE

PERIODIC MAINTENANCEPFP:00026
Periodic MaintenanceBLS0008Z
The following tables show the normal maintenance schedule. Depending upon weather and atmospheric con-
ditions, varying road surfaces, individual driving habits and vehicle usage, additional or more frequent mainte-
nance may be required.
Periodic maintenance beyond the last period shown on the tables requires similar maintenance.
ENGINE AND EMISSION CONTROL MAINTENANCE
(Annual Mileage <30,000 Km [18,000 miles]/year)
QR and VQ ENGINE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
[ ] = At the specified distance only
NOTE:

(1) Periodic maintenance is not required. However, if valve noise increases, check valve clearance.

(2) Replace the drive belt if found damaged or if the auto tensioner reading (for QR20DE engine) reaches the maximum
limit.

(3) First replace at 100,000 km (60,000 miles)/60 months, then every 60,000 km (36,000 miles)/48 months. Perform “I”
(Checking the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.

(4) Fuel filter is maintenance-free. For service procedures, refer to FL section.

(5) Perform only according to “Maintenance Under Severe Driving Conditions” for models without Euro-OBD system.

Maintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”. MAINTENANCE OPERATIONMAINTENANCE INTERVAL Reference page
Perform either at number of kilometers
(miles) or months, whichever comes first.km x
1,000
(Miles x
1,000)
Months15
(9)
1230
(18)
2445
(27)
3660
(36)
4875
(45)
6090
(54)
72105
(63)
84120
(72)
96QR20DEVQ23DE
VQ35DE
Engine compartment and under vehicle
Intake and exhaust valve clearanceSee
NOTE
(1)EM-50
EM-202
Drive beltsSee
NOTE
(2)I IIIIIIIMA-16MA-24
Engine oil (Use recommended oil.)RR RRRRRRMA-20MA-30
Engine oil filter (Use genuine NISSAN part
or equivalent)RR RRRRRRMA-21MA-31
Engine anti-freeze coolant (Use Genuine
NISSAN Anti-freeze Coolant or equivalent
in its quality.)See
NOTE
(3)IMA-16
MA-25
Cooling system I IIIIIIIMA-18MA-28
Positive crankcase ventilation (PCV) sys-
tem (VQ engine only)IIII—MA-33
Fuel and EVAP vapor lines I I I IMA-23MA-34
Air cleaner filterRRMA-20MA-30
Fuel filter (In-tank type)See
NOTE
(4)——
Spark plugs (Platinum-tipped type) [R] [R] [R] [R]MA-22
MA-32
Heated oxygen sensorSee
NOTE
(5)EC-150,
EC-143EC-496,
EC-486