2019 NISSAN TITAN water pump

∙ Do not attempt to top off the fuel tankaf ter the fuel pump nozzle shuts off
automatically. Continued refueling
may cause fuel overflow, resulting in
fuel spray and possibly a fire.
∙ Use only an original equipment type fuel-filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious mal-
function and possible injury. It could
also cause the
Malfunction Indi-
cator Light (MIL) to come on.
∙ Never pour fuel into the throttle body to attempt to start your vehicle.
∙ Do not fill a portable fuel container in the vehicle or trailer. Static electricity
can cause an explosion of flammable
liquid, vapor or gas in any vehicle or
trailer. To reduce the risk of serious
injury or death when filling portable
fuel containers:
– Always place the container on the ground when filling.
– Do not use electronic devices when filling. – Keep the pump nozzle in contact
with the container while you are
filling it.
– Use only approved portable fuel containers for flammable liquid.
CAUTION
∙ Do not use E-15 or E-85 fuel in yourvehicle. For additional information,
refer to “Fuel recommendation” in the
“Technical and consumer informa-
tion” section of this manual.
∙ The Loose Fuel Cap warning message will appear if the fuel-filler cap is not
properly tightened. It may take a few
driving trips for the message to be
displayed. Failure to tighten the fuel-
filler cap properly af ter the Loose Fuel
Cap warning message appears may
cause the
Malfunction Indicator
Light (MIL) to illuminate. ∙ Failure to tighten the fuel-filler cap
properly may cause the
Mal-
function Indicator Light (MIL) to illumi-
nate. If the
light illuminates be-
cause the fuel-filler cap is loose or
missing, tighten or install the cap and
continue to drive the vehicle.
The
light should turn off af ter a
few driving trips. If the
light does
not turn off af ter a few driving trips,
have the vehicle inspected. It is rec-
ommended that you visit a NISSAN
dealer for this service.
∙ For additional information, refer to “Malfunction Indicator Light (MIL)” in
the “Instruments and controls” sec-
tion of this manual.
∙ If fuel is spilled on the vehicle body, flush it away with water to avoid paint
damage.
Pre-driving checks and adjustments3-29

Wet brakes
When the vehicle is washed or driven
through water, the brakes may get wet. As
a result, your braking distance will be lon-
ger and the vehicle may pull to one side
during braking.
To dry the brakes, drive the vehicle at a safe
speed while lightly pressing the brake
pedal to heat up the brakes. Do this until
the brakes return to normal. Avoid driving
the vehicle at high speeds until the brakes
function correctly.
Parking brake break-in
Break in the parking brake shoes whenever
the stopping effect of the parking brake is
weakened or whenever the parking brake
shoes and/or drums/rotors are replaced,
in order to assure the best braking perfor-
mance.
This procedure is described in the vehicle
service manual. It is recommended that
you visit a NISSAN dealer for this service.
ANTI-LOCK BRAKING SYSTEM (ABS)
WARNING
∙ The ABS is a sophisticated device, butit cannot prevent accidents resulting
from careless or dangerous driving
techniques. It can help maintain ve-
hicle control during braking on slip-
pery surfaces. Remember that stop-
ping distances on slippery surfaces
will be longer than on normal sur-
faces even with ABS. Stopping dis-
tances may also be longer on rough,
gravel or snow covered roads, or if you
are using tire chains. Always maintain
a safe distance from the vehicle in
front of you. Ultimately, the driver is
responsible for safety.
∙ Tire type and condition may also af- fect braking effectiveness.
– When replacing tires, install the specified size of tires on all four
wheels. – When installing a spare tire, make
sure that it is the proper size and
type as specified on the Tire and
Loading Information label. For ad-
ditional information, refer to “Tire
and Loading Information label” in
the “Technical and consumer infor-
mation” section of this manual.
– For additional information, refer to “Wheels and tires” in the “Do-it-
yourself ” section of this manual.
The ABS controls the brakes so the wheels
do not lock during hard braking or when
braking on slippery surfaces. The system
detects the rotation speed at each wheel
and varies the brake fluid pressure to pre-
vent each wheel from locking and sliding.
By preventing each wheel from locking, the
system helps the driver maintain steering
control and helps to minimize swerving
and spinning on slippery surfaces.
Using the system
Depress the brake pedal and hold it down.
Depress the brake pedal with firm steady
pressure, but do not pump the brakes. The
Anti-lock Braking System will operate to
prevent the wheels from locking up. Steer
the vehicle to avoid obstacles.
5-56Starting and driving

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
6-16In case of emergency

1. Power steering fluid pump pulley
2. Automatic belt tensioner pulley
3. Water pump pulley
4. Cooling fan pulley
5. Air conditioner compressor pulley
6. Crankshaf t pulley
7. 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 condition and tension in accordance
with the maintenance schedule. For
additional information, refer to the
"Maintenance and schedules" section
of this manual.
For additional information on the Cum-
mins 5.0L engine drive belt, refer to the Ti-
tan Diesel Owner’s Manual.
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-
tipped spark 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.
VK56VD engine
WDI0661LDI2972
DRIVE BELT SPARK PLUGS (gasoline engine
only)
Do-it-yourself8-19

DRAINING WATER
WARNING
To avoid the risk of personal injury or
fire, drain diesel fuel into an approved
container and safely dispose of in ac-
cordance with local environmental
regulations.
CAUTION
Continuing vehicle operation without
properly draining could cause serious
damage to the engine.1. Shut the engine off.
2. Place a large drain pan under the drain
valve
A.
3. Turn the drain valve counterclockwise
1/4 turn to open.
4. Drain the filter sump until clear fuel is visible. If draining the stage 1 fuel filter
housing, drain until fuel reduces to a
trickle.
5. Turn the drain valve clockwise1/4 turn
to close.
FUEL SYSTEM PRIMING
WARNING
The fuel pump, high-pressure fuel lines,
and fuel rail contain very high-pressure
fuel. To reduce the possibility of per-
sonal injury, never loosen any fittings
while the engine is running. NOTE:
∙ It is not necessary to vent air from the
high-pressure fuel system before
starting the engine.
∙ Upon ignition on the electric lif t pump
will run until the fuel system is primed
or 90 seconds, whichever comes first.
Af ter a filter change or running the fuel tank
dry, complete the following: 1. Key ON vehicle for 90 seconds to prime the fuel system. Af ter 90 seconds, crank
the engine for a maximum of 30 sec-
onds or until the engine fires. If it does
not fire, verif y the following.
– Confirm fuel level is not empty.
– Water in fuel drain valve is closed.
– Stage 1 filter housing shell is fully seated on module and stage 2 cap is
properly seated on module.
– Stage 1 shell O-ring and stage 2 cap O-ring are properly installed and not
damaged.
LDI2898

Preventive maintenance is the easiest and
least expensive type of maintenance. Keep
records of regularly scheduled mainte-
nance and follow the maintenance sched-
ule recommendations outlined in the Titan
Owner’s Manual.
Use the correct fuel, lubricating oil, and
coolant in your engine. Blending engine oil
with fuel is prohibited for engines with an
af tertreatment system. For additional in-
formation, refer to the “Capacities and
specifications” section of this manual.
A NISSAN dealership knows your vehicle.
When you require any service or have any
questions, they will be glad to assist you
with the extensive resources available to
them.
DIESEL ENGINE OPERATION
The operation of the diesel engine in your
new vehicle varies from the operation of
traditional gasoline engines found in other
vehicles. Reading this supplement will fa-
miliarize you and other operators of the
vehicle with the unique maintenance and
operating procedures that will prolong the
life of the diesel engine and related sys-
tems.
ENGINE BREAK-IN
RECOMMENDATIONS
∙ Warm up the engine before operating itunder load
∙ Do not operate the engine at idle for extended periods
∙ Prevent engine lugging by selecting the appropriate transmission gear
∙ Monitor the vehicle oil pressure and temperature gauges
∙ Check fluid levels frequently (Oil & Cool- ant)
∙ Vary the throttle position at highway speeds when carrying weight or towing
NOTE:
Extended light or no load operation will
extend the time before the engine
reaches its full efficiency. If the engine is
operated in this manner, reduced fuel
economy and power may be observed.
The aforementioned procedure should be
observed for the first 6,000 miles. The en-
gine run-in is improved by operating the
vehicle under load.
DIESEL FUEL SYSTEM
The diesel engine fuel system is a pressur-
ized two-stage filtration system and con-
sists of: ∙ A frame-mounted primary (stage 1) fuel filter containing water/fuel separator,
electric fuel pump, and water in fuel
drain valve
∙ An engine-mounted secondary (stage 2) fuel filter
∙ A fuel injector for each cylinder (8 total)
∙ A high-pressure fuel pump
∙ A high-pressure fuel rail for each cylin- der bank (2 total)
∙ High-pressure fuel lines from the high- pressure fuel pump to the right bank
fuel rail, right bank fuel rail to the lef t
bank fuel rail, and fuel rails to fuel injec-
tors.
GENERAL INFORMATION
1-2Introduction

∙ Do not attempt to top off the fuel tankaf ter the fuel pump nozzle shuts off
automatically. Continued refueling
may cause fuel overflow, resulting in
fuel spray and possibly a fire.
∙ Use only an original equipment type fuel-filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious mal-
function and possible injury. It could
also cause the
Malfunction Indi-
cator Light (MIL) to come on.
∙ Do not use starting fluids with this en- gine. It is equipped with an intake air
heater. The use of starting fluid could
cause an explosion, fire, personal in-
jury, system or engine damage.
∙ Do not fill a portable fuel container in the vehicle or trailer. Static electricity
can cause an explosion of flammable
liquid, vapor or gas in any vehicle or
trailer. To reduce the risk of serious
injury or death when filling portable
fuel containers:
– Always place the container on the ground when filling. – Do not use electronic devices when
filling.
– Keep the pump nozzle in contact with the container while you are
filling it.
– Use only approved portable fuel containers for flammable liquid.
CAUTION
∙ For additional information, refer tothe “Malfunction Indicator Light (MIL)”
in the “Instruments and Controls” sec-
tion of the Titan Owner’s Manual.
∙ If fuel or Diesel Exhaust Fluid (DEF) is spilled on the vehicle body, flush it
away with water to avoid paint
damage To remove the diesel fuel-filler cap
A:
1. Turn the fuel-filler cap counterclock- wise to remove.
To install the fuel-filler cap: 1. Insert the fuel-filler cap straight into the fuel-filler tube.
2. Turn the cap clockwise until a single click is heard.
LPD2386
Fuel and Refueling4-3

DIESEL EXHAUST FLUID (DEF) FILL
CAP
CAUTION
∙ Overfilling your DEF tank can causedamage to the tank. ∙ DEF will freeze below 12°F (-11°C); how-
ever, your vehicle is equipped with an
automatic preheating system, which
allows the DEF system to operate be-
low 12°F (-11°C). When the vehicle is not
in operation for an extended period of
time with temperatures at or below
12°F (-11°C), the DEF tank could freeze.
In this condition, adding DEF will not
change the gauge level and added
DEF will not reach the pump, because
it will sit on top of the frozen layer. Move the vehicle to a warm location to
thaw the DEF completely for the
gauge to read accurately and allow
new DEF to reach the pump. If the tank
is overfilled and freezes, it could be
damaged, therefore do not overfill in
sustained cold conditions below 12°F
(-11°C).
∙ Do not put DEF into the fuel tank. This can cause engine damage that is not
covered by your vehicle’s warranty.
∙ Immediately wipe away any DEF that has spilled on painted surfaces with
water and a damp cloth to prevent
damage to the paint.
Outside tempera-
ture sustained at or
below. Amount of DEF to
safely add af ter 25%
warning appears:
–22°F (-30°C) .25 gal
5°F (-15°C) .5 gal
Outside tempera-
ture sustained at or
above Amount of DEF to
safely add af ter 25%
warning appears:
13°F (-10.5°C) Safe to fill the tank
LPD2385LPD2473
DIESEL EXHAUST FLUID (DEF)
4-4Fuel and Refueling