2004 NISSAN TITAN spark plugs

8 Maintenance and do-it-yourself
Maintenance requirements..........................8-2
General maintenance..............................8-2
Explanation of general maintenance items.........8-2
Maintenance precautions...........................8-5
Engine compartment check locations................8-6
Engine cooling system.............................8-7
Checking engine coolant level...................8-8
Changing engine coolant........................8-8
Engine oil.........................................8-8
Checking engine oil level........................8-8
Changing engine oil............................8-9
Changing engine oil filter.......................8-10
5-speed automatic transmission fluid...............8-11
Power steering fluid...............................8-11
Brake fluid.......................................8-12
Brake fluid....................................8-12
Window washer fluid.............................8-12
Window washer fluid reservoir..................8-12
Battery..........................................8-13
Jump starting.................................8-14
Drive belts.......................................8-15
Spark plugs......................................8-15
Replacing spark plugs.........................8-15Air cleaner.......................................8-16
In-cabin microfilter.............................8-16
Windshield wiper blades..........................8-18
Cleaning.....................................8-18
Replacing....................................8-19
Parking brake and brake pedal.....................8-20
Checking parking brake........................8-20
Checking brake pedal..........................8-20
Brake booster.................................8-21
Fuses...........................................8-21
Engine compartment...........................8-21
Passenger compartment.......................8-22
Keyfob battery replacement........................8-23
Lights...........................................8-24
Headlights....................................8-24
Fog lights (if so equipped)......................8-24
Exterior and interior lights.......................8-26
Wheels and tires.................................8-30
Tire pressure..................................8-30
Tire labeling...................................8-32
Types of tires..................................8-35
Tire chains....................................8-35
Changing wheels and tires.....................8-36
ZREVIEW COPY:Ð2004 Titan(tzw)
Owners Manual(owners)ÐUSA English(nna)
02/23/04Ðdebbie
X

1. Power steering fluid pump
2. Crankshaft
3. Generator
4. Air conditioner
5. Water pump
6. Cooling fan
WARNING
Be sure the ignition key is in the OFF or
LOCK position. The engine could rotate
unexpectedly.1. Visually inspect each belt for signs of un-
usual wear, cuts, fraying or looseness. If the
belt is in poor condition or is loose, have it
replaced or adjusted by a NISSAN dealer.
2. Have the belts checked regularly for condi-
tion and tension in accordance with the
maintenance schedule found in the
“NISSAN Service and Maintenance Guide”.
REPLACING SPARK PLUGS
Platinum-tipped spark plugs
It is not necessary to replace platinum-tipped
spark plugs as frequently as conventional type
spark plugs because they last much longer. Fol-
low the maintenance schedule, but do not reuse
the spark plugs by cleaning or regapping.
cAlways replace spark plugs with rec-
ommended or equivalent ones.
LDI0399WDI0005
DRIVE BELTSSPARK PLUGS
Maintenance and do-it-yourself8-15
ZREVIEW COPY:Ð2004 Titan(tzw)
Owners Manual(owners)ÐUSA English(nna)
02/23/04Ðdebbie
X

WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
If replacement is required, please see your
NISSAN dealer for assistance.
The air cleaner filter should not be cleaned and
reused. Replace it according to the maintenance
intervals shown in the “NISSAN Service and
Maintenance Guide.” When replacing the filter,
wipe the inside of the air cleaner filter housing
and the cover with a damp cloth.
To remove the air cleaner filter:
s1Loosen the screw.
s2Disconnect the electrical connector.
s3Push down on the clips and remove the air
cleaner cover. Remove the air cleaner filter.
WARNING
cOperating the engine with the air
cleaner removed can cause you or oth-
ers to be burned. The air cleaner not
only cleans the air, it stops the flame if
the engine backfires. If it isn’t there, and
the engine backfires, you could be
burned. Do not drive with the air cleaner
removed, and be careful when working
on the engine with the air cleaner
removed.
cNever pour fuel into the throttle body or
attempt to start the engine with the air
cleaner removed. Doing so could result
in serious injury.
IN-CABIN MICROFILTER
The in-cabin microfilter restricts the entry of air-
borne dust and pollen particles and reduces
some objectionable outside odors. The filter is
located behind the glove box. Refer to the
“NISSAN Service and Maintenance Guide” for
change intervals.
To replace the filter, perform the following proce-
dure:
LDI0376
AIR CLEANER
8-16Maintenance and do-it-yourself
ZREVIEW COPY:Ð2004 Titan(tzw)
Owners Manual(owners)ÐUSA English(nna)
02/23/04Ðdebbie
X

ENGINE
ModelVK56DE
TypeGasoline, 4-cycle, DOHC
Cylinder arrangement8-cylinder, V-block, Slanted at 90°
Bore x Strokein (mm) 3.858 x 3.622 (98 x 92)
Displacementcu in (cm
3) 338.78 (5,552)
Firing order1–8–7–3–6–5–4–2
Idle speed
See the “Emission Control label” on the underside of the
hood. A/T (in “N” position)
Ignition timing (degree B.T.D.C. at idle speed)
CO % at idle
Spark plugStandard PLFR5A-11
Hot PLFR4A-11
Cold PLFR6A-11
Spark plug gap (Nominal)in (mm) 0.043 (1.1)
Camshaft operationTiming chain
The spark ignition system of this vehicle meets all requirements of the Canadian Interference-Causing Equipment Regulations.
SPECIFICATIONS
Technical and consumer information9-7
ZREVIEW COPY:Ð2004 Titan(tzw)
Owners Manual(owners)ÐUSA English(nna)
02/23/04Ðdebbie
X