2018 NISSAN TITAN check engine

Do not attempt to start the engine by
pushing.
CAUTION
∙ Automatic transmission models can-not be push-started or tow-started.
Attempting to do so may cause trans-
mission damage.
∙ Three way catalyst equipped models should not be started by pushing
since the three way catalyst may be
damaged.
∙ Never try to start the vehicle by tow- ing it; when the engine starts, the for-
ward surge could cause the vehicle to
collide with the tow vehicle.
WARNING
∙ Do not continue to drive if your vehicleoverheats. Doing so could cause en-
gine damage or a vehicle fire.
∙ To avoid the danger of being scalded, never remove the radiator or coolant
reservoir cap while the engine is still
hot. When the radiator or coolant res-
ervoir cap is removed, pressurized hot
water will spurt out, possibly causing
serious injury.
∙ Do not open the hood if steam is com- ing out.
If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc. take the
following steps: 1. Move the vehicle safely off the road, ap- ply the parking brake and move the
shif t lever to P (Park).
Do not stop the engine.
2. Turn off the air conditioner. Open all the windows, move the heater or air condi-
tioner temperature control to maxi-
mum hot and fan control to high
speed. 3. If engine overheating is caused by
climbing a long hill on a hot day, run the
engine at a fast idle (approximately
1,500 rpm) until the temperature gauge
indication returns to normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. If
steam or coolant is escaping, turn off
the engine. Do not open the hood fur-
ther until no steam or coolant can be
seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
6. Visually check drive belts for damage or looseness. Also check if the cooling
fan is running. The radiator hoses and
radiator should not leak water. If cool-
ant is leaking, the water pump belt is
missing or loose, or the cooling fan
does not run, stop the engine.
PUSH STARTING IF YOUR VEHICLE OVERHEATS
In case of emergency6-15

WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or
the engine cooling fan. The engine cool-
ing fan can start at any time.7. Af ter the engine cools down, check the coolant level in the engine coolant res-
ervoir tank with the engine running. Add
coolant to the engine coolant reservoir
tank if necessary. It is recommended
that you visit a NISSAN dealer for this
service. When towing your vehicle, all jurisdictional
and local regulations for towing must be
followed. Incorrect towing equipment
could damage your vehicle. Towing in-
structions are available from a NISSAN
dealer. Local service operators are gener-
ally familiar with the applicable laws and
procedures for towing. To assure proper
towing and to prevent accidental damage
to your vehicle, NISSAN recommends hav-
ing a service operator tow your vehicle. It is
advisable to have the service operator
carefully read the following precautions:
WARNING
∙ Never ride in a vehicle that is being
towed.
∙ Never get under your vehicle af ter it has been lif ted by a tow truck.
∙ If your vehicle has front recovery hooks as original factory equipment,
do not remove or modif y them. If it
was not equipped with front recovery
hooks, do not install them. Either ac-
tion could affect proper operation of
the front air bag system resulting in
injury or death.
CAUTION
∙ When towing, make sure that thetransmission, axles, steering system
and powertrain are in working condi-
tion. If any of these conditions apply,
dollies or a flatbed tow truck must be
used.
∙ Always attach safety chains before towing.
For additional information, refer to "Flat
towing for 2-Wheel Drive (2WD) vehicle" or
"Flat towing for 4-Wheel Drive (4WD) ve-
hicle" in the "Technical and consumer infor-
mation" section of this manual.
TOWING RECOMMENDED BY
NISSAN
NISSAN recommends towing your vehicle
based upon the type of drivetrain. For addi-
tional information, refer to the diagrams in
this section to ensure that your vehicle is
properly towed.
TOWING YOUR VEHICLE
6-16In case of emergency

8 Do-it-yourself
Maintenance precautions.......................8-2
Engine compartment check locations ...........8-3
Engine cooling system ..........................8-5
Checking engine coolant level ................8-6
Changing engine coolant .....................8-6
Engine oil ........................................8-7
Checking engine oil level .....................8-7
Changing engine oil ..........................8-8
Changing engine oil filter .....................8-9
Fuel filter (CUMMINS 5.0L) ........................8-11
Fuel filter replacement (stage 1) ...............8-11
Fuel filter replacement (stage 2) ..............8-11
Draining water ............................... 8-11
Fuel system priming .......................... 8-11
Diesel Particulate Filter (DPF) .....................8-11
Automatic regeneration ......................8-11
6-speed Automatic Transmission Fluid (ATF)
(diesel engine only) ............................. 8-12
7-speed Automatic Transmission Fluid (ATF)
(gasoline engine only) .......................... 8-12
Power steering fluid ............................ 8-12
Brake fluid ...................................... 8-13
Windshield-washer fluid ........................8-14
Windshield-washer fluid reservoir ............8-14Battery.........................................
8-15
Jump starting ............................... 8-16
Variable voltage control (if so equipped) ........8-17
Drive belt ....................................... 8-17
Spark plugs (gasoline engine only) ..............8-18
Replacing spark plugs .......................8-18
Air cleaner ...................................... 8-19
In-cabin microfilter .......................... 8-19
Windshield wiper blades ........................8-20
Cleaning .................................... 8-20
Replacing ................................... 8-20
Brakes.......................................... 8-21
Fuses ........................................... 8-22
Engine compartment .......................8-22
Passenger compartment ....................8-24
Batter y

replacement ........................... 8-26
NISSAN Intelligent Key® ......................8-26
Lights .......................................... 8-28
Headlights ................................... 8-28
Fog lights (if so equipped) ...................8-28
Daytime Running Light (DRL)
(if so equipped) .............................. 8-29
Exterior and interior lights ...................8-31

VK56VD engine (non-XD model)
1. Windshield-washer fluid reservoir
2. Fuse box
3. Engine oil dipstick
4. Power steering fluid reservoir
5. Engine oil filler cap
6. Brake fluid reservoir
7. Air cleaner
8. Fuse/Fusible link box
9. Drive belt location
10. Radiator cap
11. Battery
12. Engine coolant reservoir
LDI3056
ENGINE COMPARTMENT CHECK
LOCATIONS
Do-it-yourself8-3

CHECKING ENGINE COOLANT
LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below the MIN level
B, add coolant
to the MAX level
A. If the reservoir is empty,
check the coolant level in the radiator
when the engine is cold. If there is insuffi-
cient coolant in the radiator, fill the radiator
with coolant up to the filler opening and
also add it to the reservoir up to the MAX
level
A. This vehicle contains Genuine NISSAN Long
Life Antifreeze/Coolant (blue). The life ex-
pectancy of the factory-fill coolant is
105,000 miles (168,000 km) or 7 years. Mixing
any other type of coolant or the use of
non-distilled water may reduce the life ex-
pectancy of the factory-fill coolant. For ad-
ditional information, refer to “Maintenance
and schedules” section of this manual.
If the cooling system frequently requires
coolant, have it checked. It is recom-
mended that you visit a NISSAN dealer
for this service. For additional information on the location
of the engine coolant reservoir, refer to “En-
gine compartment check locations” in this
section.
CHANGING ENGINE COOLANT
A NISSAN dealer can change the engine
coolant. The service procedure can be
found in the NISSAN Service Manual.
Improper servicing can result in reduced
heater performance and engine over-
heating.
WARNING
∙ To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
∙ Never remove the radiator or engine coolant reservoir cap when the en-
gine is hot. Serious burns could be
caused by high pressure fluid escap-
ing from the radiator.
∙ Avoid direct skin contact with used coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
∙ Keep coolant out of the reach of chil- dren and pets.VK56VD engine (non-XD model)
LDI3004
VK56VD engine (XD model)
LDI2823
8-6Do-it-yourself

Engine coolant must be disposed of prop-
erly. Check your local regulations.
For additional information on changing the
Cummins 5.0L engine coolant, refer to the
“Titan Diesel Owner’s Manual”.
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface andapply the parking brake.
2. Start the engine and let it idle until it reaches operating temperature.
3. Turn off the engine. Wait more than
15 minutes for the oil to drain back
into the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way. 5. Remove the dipstick again and check
the oil level. It should be between the H
(High) and L (Low) marksB. This is the
normal operating oil level range. If the
oil level is below the L (Low) mark
A,
remove the oil filler cap and pour rec-
ommended oil through the opening.
Do not overfill
C.
6. Recheck oil level with the dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the sever-
ity of operating conditions.
VK56VD engine
LDI2956
VK56VD engine
LDI0371
ENGINE OIL
Do-it-yourself8-7

CAUTION
Oil level should be checked regularly.
Operating the engine with an insuffi-
cient amount of oil can damage the en-
gine, and such damage is not covered
by warranty.
For additional information on checking the
Cummins 5.0L engine oil level, refer to the
“Titan Diesel Owner’s Manual”.
CHANGING ENGINE OIL
1. Park the vehicle on a level surface and apply the parking brake. 2. Start the engine and let it idle until it
reaches operating temperature.
3. Turn the engine off and wait more than 15 minutes.
4. Remove the oil filler cap
Aby turning it
counterclockwise.
5. Place a large drain pan under the drain plug
B.
6. Remove the drain plug
Bwith a
wrench by turning it counterclockwise
and completely drain the oil.
If the oil filter is to be changed, remove
and replace it at this time. For addi-
tional information, refer to “Changing
engine oil filter” in this section.
∙ Waste oil must be disposed of prop-
erly.
∙ Check your local regulations.
VK56VD engine
LDI2957
8-8Do-it-yourself

WARNING
∙ Prolonged and repeated contact withused 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.
∙ Keep used engine oil out of reach of children.
CAUTION
Be careful not to burn yourself. The en-
gine oil may be hot.
7. Clean and reinstall the drain plug and a new washer. Securely tighten the drain
plug with a wrench. Do not use exces-
sive force.
Drain plug tightening torque: 25 f t-lb (34 N·m) 8. Refill engine with recommended oil
through the oil filler opening, then in-
stall the oil filler cap securely.
For additional information on drain
and refill capacity, refer to “Recom-
mended fluids/lubricants and capaci-
ties” in the “Technical and consumer
information” section of this manual.
The drain and refill capacity depends
on the oil temperature and drain time.
Use these specifications for reference
only. Always use the dipstick to deter-
mine when the proper amount of oil is
in the engine.
9. Start the engine. Check for leakage around the drain plug and oil filter. Cor-
rect as required.
10. Turn the engine off and wait more than 15 minutes. Check the oil level with the
dipstick. Add engine oil if necessary.
For additional information on changing the
Cummins 5.0L engine oil, refer to the “Titan
Diesel Owner’s Manual”.
CHANGING ENGINE OIL FILTER
1. Park the vehicle on a level surface and apply the parking brake.
2. Turn the engine off.
3. Remove bolts
Aand skid plate.
Skid plate (Type A) (if so equipped)
LDI3005
Do-it-yourself8-9