2023 NISSAN FRONTIER spark plugs replace

8 Do-it-yourself
Maintenance precautions.......................8-2
Engine compartment check locations ...........8-4
Engine cooling system ..........................8-6
Checking engine coolant level ................8-7
Changing engine coolant ....................8-7
Engine oil .......................................8-8
Checking engine oil level .....................8-8
Changing engine oil and oil filter ..............8-8
Automatic Transmission Fluid (ATF) .............8-13
Power Steering Fluid (PSF) ......................8-14
Brake fluid ...................................... 8-14
Brake fluid ................................... 8-15
Windshield-washer fluid ........................8-15
Windshield-washer fluid reservoir ...........8-15
Battery......................................... 8-16
Jump starting ............................... 8-18
Variable voltage control system ................8-18
Drive belt ....................................... 8-19
Spark plugs .................................... 8-19
Replacing spark plugs ....................... 8-19Air cleaner
..................................... 8-20
In-cabin microfilter .......................... 8-20
Windshield wiper blades ........................8-21
Cleaning .................................... 8-21
Replacing ................................... 8-21
Brakes ......................................... 8-22
Fuses .......................................... 8-23
Engine compartment .......................8-24
Passenger compartment ...................8-25
Battery replacement ........................... 8-26
NISSAN Intelligent Key® ......................8-26
Lights .......................................... 8-28
Headlights .................................. 8-28
Fog lights (if so equipped) ...................8-28
Exterior and interior lights ...................8-29
Wheels and tires ............................... 8-32
Tire pressure ................................ 8-32
Tire labeling ................................. 8-36
T
ypes of tires ................................ 8-39
Tire chains .................................. 8-40
Changing wheels and tires ..................8-41

1. Power steering fluid pump pulley
2. Automatic belt tensioner pulley
3. Air conditioner compressor pulley
4. Crankshaf t pulley
5. Generator pulley
WARNING
Be sure the ignition switch is in the
OFF or LOCK position before servicing
drive belt. The engine could rotate
unexpectedly. 1. Visually inspect the 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. It is recom-
mended that you visit a NISSAN dealer
for this service.
2. Have the belt checked regularly for con- dition and tension in accordance with
the maintenance schedule found in the
"Maintenance and schedules" section of
this manual.
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-
tipped
OAspark plugs as frequently as con-
ventional type spark plugs because they
last much longer. Follow the maintenance
log shown in the "Maintenance and sched-
ules" section of this manual. Do not service
iridium-tipped spark plugs by cleaning or
regapping.
• Always replace spark plugs with rec-
ommended or equivalent ones.
LDI3616SDI1895
DRIVE BELT SPARK PLUGS
Do-it-yourself8-19

NOTE:
NISSAN does not advocate the use of
non-OEM approved af termarket flush-
ing systems and strongly advises
against performing these services on a
NISSAN product. Many of the af termar-
ket flushing systems use non-OEM ap-
proved chemicals or solvents, the use of
which has not been validated by NISSAN.
For recommended fuel, lubricants, fluids,
grease, and refrigerant, see “Recom-
mended fluids/lubricants and capaci-
ties” (P. 10-2).
EMISSION CONTROL SYSTEM
MAINTENANCE:
Drive belts*:Check engine drive belts for
wear, fraying or cracking and for proper
tension. Replace any damaged drive belts.
Engine air filter: Replace at specified inter-
vals. When driving for prolonged periods in
dusty conditions, check/replace the filter
more frequently.
Engine coolant*: Replace coolant at the
specified interval. When adding or replac-
ing coolant, be sure to use only Genuine
NISSAN Long Life Antifreeze/Coolant (blue)
or equivalent with the proper mixture. (For additional information on the proper mix-
ture for your area, see “Engine cooling sys-
tem” (P. 8-6).
NOTE: Mixing any other type of coolant
or the use of non-distilled water may re-
duce the recommended service interval
of the coolant.
Engine oil and oil filter:
Replace engine oil
and oil filter at the specified intervals. For
recommended oil grade and viscosity, see
“Recommended fluids/lubricants and ca-
pacities” (P. 10-2).
Engine valve clearance*: Inspect only if
valve noise increases. Adjust valve clear-
ance if necessary.
Evaporative emissions control vapor
lines*: Check vapor lines for leaks or loose-
ness. Tighten connections or replace parts
as necessary.
Fuel filter: Periodic maintenance is not re-
quired. (in-tank type filter)
Fuel lines*: Check the fuel hoses, piping
and connections for leaks, looseness, or
deterioration. Tighten connections or re-
place parts as necessary.
Spark plugs: Replace at specified intervals.
Install new plugs of the same type as origi-
nally equipped.
CHASSIS AND BODY
MAINTENANCE:
Brake lines and cables: Visually inspect for
proper installation. Check for chafing,
cracks, deterioration, and signs of leaking.
Replace any deteriorated or damaged
parts immediately.
Brake pads and rotors:
Check for wear, de-
terioration and fluid leaks. Replace any dete-
riorated or damaged parts immediately.
Exhaust system: Visually inspect the ex-
haust pipes, muffler and hangers for leaks,
cracks, deterioration, and damage. Tighten
connections or replace parts as necessary.
Propeller shaf t(s): Check for damage,
looseness, and grease leakage.
In-cabin microfilter: Replace at specified
intervals. When driving for prolonged peri-
ods in dusty conditions, replace the filter
more frequently.
Steering gear and linkage, axle and sus-
pension parts, drive shaf t boots: Check
for damage, looseness, and leakage of oil
or grease. Under severe driving conditions,
inspect more frequently.
9-6Maintenance and schedules

100,000 miles/(160,000 km)/
120 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Not applicable. Proceed to next interval
Severe use maintenance:
Inspections:
• Brake pads and rotors
• Steering gear and linkage
• Axle and suspension parts
• Drive shaf t boots (4WD models)
• Propeller shaf t (4WD models)
• Exhaust system
Essential:
• Replace engine oil & filter
• Replace brake fluid
• Replace transfer fluid
• Replace differential gear oil
• Lubricate propeller shaf t grease (4WDmodels)
105,000 miles/(168,000 km)/
84 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Automatic transmission fluid (2) (3)
• Brake lines and cables
• Brake pads and rotors
• Engine drive belt*
• Drive shaf t boots (4WD models)
• Propeller shaf t (4WD models)
• Differential gear oil
• Transfer fluid
Essential:
• Replace engine oil & filter
• Replace in-cabin microfilter
• Lubricate propeller shaf t grease (4WDmodels) (7)
• Replace spark plugs (6)
• Tire rotation
• Replace engine coolant* (4) (5)
Severe use maintenance:
Not applicable. Proceed to next interval * Maintenance items and intervals with “*”
are recommended by NISSAN for reliable
vehicle operation. The owner need not per-
form such maintenance in order to main-
tain the emission warranty or manufac-
turer recall liability. Other maintenance
items and intervals are required.
(2) Request a NISSAN dealer to inspect the
fluid deterioration data using a CONSULT. If
the deterioration data is more than 77000,
replace the AT fluid.
(3) If using under severe conditions such as
towing a trailer, using a car-top carrier, or
driving on rough or muddy roads, change
(not just inspect) oil at every 30,000 miles
(48,000 km) or 24 months. NISSAN recom-
mends using Genuine NISSAN Matic P au-
tomatic transmission fluid. Using auto-
matic transmission fluid that is not
equivalent to Genuine NISSAN Matic P may
damage the transmission or impact trans-
mission durability. Damage caused by the
use of fluid other than as recommended is
not covered under the NISSAN New Vehicle
Limited Warranty.
(4) First replacement interval is 105,000
miles (168,000 km) or 84 months. Af ter first
replacement, replace every 75,000 miles
(120,000 km) or 60 months.
9-22Maintenance and schedules

Seat belt maintenance..........1-23Seat belts................1-14,7-6Shoulder belt height adjustment. . . .1-22Three-point type with retractor.....1-18Seat belt extenders..............1-22Seat belt warning light.........1-17,2-15Seatback pockets...............2-68SeatsAdjustment..................1-2Front seats..................1-2Manual front seat adjustment......1-3Rear seat.................. .1-6Security indicator light............2-15Security system (NISSAN Vehicle Immobilizer
System), engine start.........2-41, 5-16Security systems
Vehicle security system.........2-39Self-adjusting brakes.............8-22Service manual order form........10-44Servicing air conditioner...........4-43Shif tingAutomatic transmission.........5-20Shoulder belt height adjustment......1-22Side air bag system (See supplemental side
air bag, curtain and rollover air bag
systems)
................... .1-86Sonar
Rear system................5-124Spark plug replacement...........8-19Spark plugs...................8-19Specifications................ .10-9Speedometer................. .2-5Speedometer and odometer........2-4SRS warning label...............1-90
Stability control................5-121Standard maintenance............9-8Starting
Before starting the engine........5-17Jump starting............6-11,8-18Precautions when starting and
driving................. .5-4, 5-11Push starting................6-13Starting the engine (gasoline engine
only).......................5-17Steering
Power steering fluid............8-14Power steering system.........5-117Tilting steering wheel...........3-23Steering wheel.................3-23Stop light....................8-29Storage.................... .2-67Storage tray...................2-71Sun visors....................3-24Sunglasses case................2-72Sunglasses holder..............2-72Sunroof...................2-77,7-5Supplemental air bag warning labels. . .1-90Supplemental air bag warning
light....................1-90, 2-15Supplemental front impact air bag
system......................1-77Supplemental restraint system
Information and warning labels.....1-90Precautions on supplemental restraint
system....................1-70Supplemental restraint system (Supplemen-
tal air bag system)...............1-70Switch Autolight switch
..............2-44Automatic power window switch. . .2-76Electronic locking rear differential (E-Lock)
system switch...............2-55Fog light switch..............2-49Hazard warning flasher switch......6-2Headlight and turn signal switch. . . .2-43Headlight control switch.........2-43Hill descent control switch........2-54Instrument brightness control.....2-49Power door lock switch..........3-6Power inverter switch...........2-56Rear sonar system OFF switch.....2-56Tow mode switch.............2-57Turn signal switch.............2-49
T
Tachometer..................
.2-6Tailgate.....................3-27Temperature gauge
Engine coolant temperature gauge. . .2-6Thef t (NISSAN Vehicle Immobilizer System),
engine start...............2-41, 5-16Three-way catalyst...............5-5Tie down hooks................3-31Tilting steering wheel.............3-23TireFlat tire................... .6-3Spare tire..........6-4, 6-5, 6-6, 8-44Tire and Loading Information label. .10-14Tire chains.................8-40Tire pressure................8-32
11-6