engine NISSAN XTERRA 2006 N50 / 2.G Service Manual

DRIVING SAFETY PRECAUTIONS
Your NISSAN is designed for both normal and
off-road use. However, avoid driving in deep wa-
ter or mud as your NISSAN is mainly designed for
leisure use, unlike a conventional off-road ve-
hicle.
Remember that two-wheel drive models are less
capable than four-wheel drive models for rough
road driving and extrication when stuck in deep
snow or mud, or the like.
Please observe the following precautions:
WARNING
cDrive carefully when off the road and
avoid dangerous areas. Every person
who drives or rides in this vehicle
should be seated with their seat belt
fastened. This will keep you and your
passengers in position when driving
over rough terrain.
cDo not drive across steep slopes. In-
stead drive either straight up or straight
down the slopes. Off-road vehicles can
tip over sideways much more easily
than they can forward or backward.cMany hills are too steep for any vehicle.
If you drive up them, you may stall. If
you drive down them, you may not be
able to control your speed. If you drive
across them, you may roll over.
cDo not shift gears while driving on
downhill grades as this could cause
loss of control of the vehicle.
cStay alert when driving to the top of a
hill. At the top there could be a drop-off
or other hazard that could cause an
accident.
cIf your engine stalls or you cannot make
it to the top of a steep hill, never at-
tempt to turn around. Your vehicle
could tip or roll over. Always back
straight down in R (Reverse) gear. Never
back down in N (Neutral) or with the
clutch depressed (manual transmission
vehicles) , using only the brake, as this
could cause loss of control.
cHeavy braking going down a hill could
cause your brakes to overheat and fade,
resulting in loss of control and an acci-
dent. Apply brakes lightly and use a low
gear to control your speed. Use the Hill
Descent Control feature (if so
equipped) .cUnsecured cargo can be thrown around
when driving over rough terrain. Prop-
erly secure all cargo so it will not be
thrown forward and cause injury to you
or your passengers.
cTo avoid raising the center of gravity
excessively, do not exceed the rated
capactiy of the roof rack/gear bin (if so
equipped) and evenly distribute the
load. Secure heavy loads in the cargo
area as far forward and as low as pos-
sible. Do not equip the vehicle with tires
larger than specified in this manual.
This could cause your vehicle to roll
over.
cDo not grip the inside or spokes of the
steering wheel when driving off-road.
The steering wheel could move sud-
denly and injure your hands. Instead
drive with your fingers and thumbs on
the outside of the rim.
cBefore operating the vehicle, ensure
that the driver and all passengers have
their seat belts fastened.
cAlways drive with the floor mats in
place as the floor may become hot.
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To lock the steering wheel, turn the key to
the LOCK position. Remove the key. To
unlock the steering wheel, insert the key
and turn it gently while rotating the steer-
ing wheel slightly right and left.
WARNING
Never remove or turn the key to the LOCK
position while driving. The steering wheel
will lock. This may cause the driver to lose
control of the vehicle and could result in
serious vehicle damage or personal injury.
KEY POSITIONS
LOCK: Normal parking position (0)
OFF: (Not used) (1)
ACC: (Accessories) (2)
This position activates electrical accessories
such as the radio when the engine is not running.
ON: Normal operating position (3)
This position turns on the ignition system and the
electrical accessories.
START: (4)
This position starts the engine. As soon as the
engine has started, release the key. It automati-
cally returns to the ON position.
NISSAN VEHICLE IMMOBILIZER
SYSTEM(if so equipped)
The NISSAN Vehicle Immobilizer System will not
allow the engine to start without the use of the
registered key.
If the engine fails to start using a registered key
(for example, when interference is caused by
another registered key, an automated toll road
device or automatic payment device on the key
ring) , restart the engine using the following pro-
cedures:
1. Leave the ignition switch in the ON position
for approximately 5 seconds.
2. Turn the ignition switch to the OFF or LOCK
position, and wait approximately 10 sec-
onds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the device
(which may have caused the interference)
separate from the registered key.
If the no start condition re-occurs, NISSAN rec-
ommends placing the registered key on a sepa-
rate key ring to avoid interference from other
devices.cMake sure the area around the vehicle is
clear.
cCheck fluid levels such as engine oil, cool-
ant, brake fluid, and window washer fluid as
frequently as possible, or at least whenever
you refuel.
cCheck that all windows and lights are clean.
cVisually inspect tires for their appearance
and condition. Also check tires for proper
inflation.
cLock all doors.
cPosition seat and adjust head restraints.
cAdjust inside and outside mirrors.
cFasten seat belts and ask all passengers to
do likewise.
cCheck the operation of warning lights when
the key is turned to the ON (3) position. See
“Warning/indicator lights and audible re-
minders” in the “Instruments and controls”
section of this manual.
BEFORE STARTING THE ENGINE
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1. Apply the parking brake.
2.Automatic transmission:
Move the shift selector lever to P (Park) or N
(Neutral) . P (Park) is recommended.
The shift selector lever cannot be
moved out of P (Park) and into any of
the other gear positions if the ignition
key is turned to the OFF position or if
the key is removed from the ignition
switch.
The starter is designed not to operate if
the shift selector lever is in any of the
driving positions.
Manual transmission:
Move the shift lever to N (Neutral) . Depress
the clutch pedal to the floor while cranking
the engine.
The starter is designed not to operate
unless the clutch pedal is fully de-
pressed.
3. Crank the enginewith your foot off the
accelerator pedalby turning the ignition
key to START. Release the key when the
engine starts. If the engine starts, but fails to
run, repeat the above procedure.cIf the engine is very hard to start in ex-
tremely cold weather or when restarting,
depress the accelerator pedal a little (ap-
proximately 1/3 to the floor) and hold it
and then crank the engine. Release the
key and the accelerator pedal when the
engine starts.
cIf the engine is very hard to start because
it is flooded, depress the accelerator
pedal all the way to the floor and hold it.
Crank the engine for 5-6 seconds. After
cranking the engine, release the accel-
erator pedal. Crank the enginewith your
foot off the accelerator pedalby turn-
ing the ignition key to START. Release the
key when the engine starts. If the engine
starts, but fails to run, repeat the above
procedure.
CAUTION
Do not operate the starter for more than
15 seconds at a time. If the engine does
not start, turn the key off and wait 10
seconds before cranking again, otherwise
the starter could be damaged.4. Allow the engine to idle for at least 30 sec-
onds after starting. Do not race the engine
while warming it up. Drive at moderate
speed for a short distance first, especially in
cold weather.
STARTING THE ENGINE
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AUTOMATIC TRANSMISSION
WARNING
cDo not depress the accelerator pedal
while shifting from P (Park) or N (Neu-
tral) to R (Reverse) , D (Drive) , 3, 2 or 1.
Always depress the brake pedal until
shifting is completed. Failure to do so
could cause you to lose control and
have an accident.
cCold engine idle speed is high, so use
caution when shifting into a forward or
reverse gear before the engine has
warmed up.
cNever shift to P (Park) or R (Reverse)
while the vehicle is moving. This could
cause an accident.
CAUTION
cWhen stopping the vehicle on an uphill
grade, do not hold the vehicle by de-
pressing the accelerator pedal. The foot
brake should be used for this purpose.
cDo not downshift abruptly on slippery
roads. This may cause a loss of control.
The automatic transmission in your vehicle is
electronically controlled to produce maximum
power and smooth operation.The recommended operating procedures for this
transmission are shown on the following pages.
Follow these procedures for maximum vehicle
performance and driving enjoyment.
Starting the vehicle
1. After starting the engine, fully depress the
foot brake pedal before attempting to move
the shift selector lever out of the P (Park)
position.
2. Keep the foot brake pedal depressed and
move the shift selector lever into a driving
gear.
3. Release the foot brake, then gradually start
the vehicle in motion.
The automatic transmission is designed so
the foot brake pedal MUST be depressed
before shifting from P (Park) to any drive
position while the ignition switch is in the
ON position.
The shift selector lever cannot be moved
out of P (Park) and into any of the other
gear positions if the ignition key is turned
to the LOCK, OFF or ACC position or if the
key is removed.To move the selector lever:
: Push the button while depressing the
brake pedal
: Push the button to shift
: Shift without depressing brake pedal
Shifting
After starting the engine, fully depress the brake
pedal and move the shift selector lever out of the
P (Park) position.
LSD0151
DRIVING THE VEHICLE
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WARNING
Apply the parking brake if the selector
lever is in any position while the engine is
not running. Failure to do so could cause
the vehicle to move unexpectedly or roll
away and result in serious personal injury
or property damage.
If the key is turned to the OFF or ACC position for
any reason while the vehicle is in N (Neutral) , or
any D (Drive) position, the key cannot be turned
to the LOCK position and be removed from the
ignition switch. Move the selector lever to the P
(Park) position, then the key can be turned to
LOCK.
P (Park):
Use this selector position when the vehicle is
parked or when starting the engine. Make sure
the vehicle is completely stopped.The brake
pedal must be depressed to move the se-
lector lever from N (Neutral) or any drive
position to P (Park) .Apply the parking brake.
When parking on a hill, apply the parking brake
first, then move the shift selector lever into the P
(Park) position.R (Reverse):CAUTION
Use this position only when the vehicle is
completely stopped.
Use this position to back up. Make sure the
vehicle is completely stopped before selecting
the R (Reverse) position.The brake pedal
must be depressed to move the selector
lever from P (Park) , N (Neutral) or any drive
position to R (Reverse) .
N (Neutral):
Neither forward nor reverse gear is engaged. The
engine can be started in this position. You may
shift to N (Neutral) and restart a stalled engine
while the vehicle is moving.
D (Drive):
Use this position for all normal forward driving.
3 (Third gear):
Use this position for driving up and down long
slopes where engine braking would be advanta-
geous.
Do not downshift into the 3 position at speeds
over the following and do not exceed the follow-
ing speeds in the 3 position.
2WD:62 MPH (100 km/h)
4H:
62 MPH (100 km/h)
4LO:
31 MPH (50 km/h)
2 (Second gear):
Use this position for hill climbing or engine brak-
ing on downhill grades.
Do not downshift into the 2 position at speeds
over the following and do not exceed the follow-
ing speeds in the 2 position.
2WD:
71 MPH (115 km/h)
4H:
62 MPH (100 km/h)
4LO:
31 MPH (50 km/h)
1 (Low gear):
Use this position when climbing steep hills slowly
or slow driving through deep snow, sand or mud,
or for maximum engine braking on steep downhill
grades.
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Do not downshift into the 1 position at speeds
over the following and do not exceed the follow-
ing speeds in the 1 position.
2WD:
43 MPH (70 km/h)
4H:
43 MPH (70 km/h)
4LO:
31 MPH (50 km/h)
Shift lock release
If the battery is discharged, the shift selector lever
may not be moved from the P (Park) position even
with the brake pedal depressed.
To move the shift selector lever, release the shift
lock. The shift selector lever can be moved to N
(Neutral) . However, the steering wheel will be
locked unless the ignition switch is turned to the
ON position. This allows the vehicle to be moved
if the battery is discharged.To push the shift lock release, complete the fol-
lowing procedure:
1. Turn the ignition key to the LOCK position
and remove the key
2. Apply the parking brake.
3. Remove the shift lock release cover as
shown.
4. Insert a small screwdriver in the shift lock
release slot and push down.
5. Move the shift selector lever to the N (Neu-
tral) position while holding down the shift
lock release.
6. Turn the key to the ON position to unlock the
steering wheel. Now the vehicle may be
moved to the desired location.
If the shift selector lever cannot be moved out of
P (Park) , have a NISSAN dealer check the auto-
matic transmission system as soon as possible.
WARNING
If the selector lever cannot be moved from
the P (Park) position while the engine is
running and the brake pedal is depressed,
the stop lights may not work. Malfunction-
ing stop lights could cause an accident
injuring yourself and others.
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Accelerator downshift
— in D position —
For passing or hill climbing, depress the accel-
erator pedal to the floor. This shifts the transmis-
sion down into a lower gear, depending on the
vehicle speed.
Overdrive switch
Each time your vehicle is started, the transmis-
sion is automatically “reset” to overdrive ON.
ON: With the engine running and the
shift selector lever in the D (Drive)
position, the transmission upshifts
into Overdrive as vehicle speed
increases.
Overdrive does not engage until the engine
has reached operating temperature.
OFF: For driving up and down long
slopes where engine braking is nec-
essary push the Overdrive switch
once. The O/D OFF indicator light
in the instrument panel comes on at
this time.
When cruising at a low speed or climbing a
gentle slope, you may feel uncomfortable shift
shocks as the transmission shifts into and out of
Overdrive repeatedly. In this case, depress the
Overdrive switch to turn the Overdrive off. The
O/D OFF indicator light in the instrument panel
comes on at this time.
When driving conditions change, depress the
Overdrive switch to turn the Overdrive on.
Remember not to drive at high speeds for ex-
tended periods of time with the Overdrive off.
This reduces fuel economy.
MANUAL TRANSMISSION
WARNING
cDo not downshift abruptly on slippery
roads. This may cause a loss of control.
cDo not over-rev the engine when shift-
ing to a lower gear. This may cause a
loss of control or engine damage.
LSD0142
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CAUTION
cDo not rest your foot on the clutch pedal
while driving. This may cause clutch
damage.
cFully depress the clutch pedal before
shifting to help prevent transmission
damage.
cStop your vehicle completely before
shifting into R (Reverse) .
cWhen the vehicle is stopped with the
engine running (for example, at a stop
light) , shift to N (Neutral) and release
the clutch pedal with the foot brake
applied.
Shifting
To change gears, or when upshifting or down-
shifting, depress the clutch pedal fully, shift into
the appropriate gear, then release the clutch
slowly and smoothly.
To ensure smooth gear changes, fully depress
the clutch pedal before operating the shift lever. If
the clutch pedal is not fully depressed before the
transmission is shifted, a gear noise may be
heard. Transmission damage could occur.
Start the vehicle in 1st gear and shift to 2nd, 3rd,
4th, 5th and 6th gear in sequence according to
vehicle speed.To back up depress the shift lever and then move
it to the R (Reverse) position after stopping the
vehicle completely.
If it is difficult to move the shift lever into R
(Reverse) or 1 (First) , shift into N (Neutral) , then
release the clutch pedal. Fully depress the clutch
pedal again and shift into R (Reverse) or 1 (First) .
If your vehicle is equipped with 4-wheel drive, see
“Transfer case shifting procedures” later in this
section.
Suggested upshift speeds
The following are suggested vehicle speeds for
shifting into a higher gear. These suggestions
relate to fuel economy and vehicle performance.
Actual upshift speeds will vary according to road
conditions, the weather and individual driving
habits.
cTwo-wheel drive models and four-wheel
drive models (2H and 4H position):
GEAR CHANGE MPH (km/h)
1st to 2nd 11 (18)
2nd to 3rd 17 (27)
3rd to 4th 25 (40)
4th to 5th 32 (51)
5th to 6th 45 (72)
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c4–wheel drive model (4L position):
GEAR CHANGE MPH (km/h)
1st to 2nd —
2nd to 3rd —
3rd to 4th —
4th to 5th —
5th to 6th —
Suggested maximum speed in each
gear
Downshift to a lower gear if the engine is not
running smoothly, or if you need to accelerate.
Do not exceed the maximum suggested speed
(shown below) in any gear. For level road driving,
use the highest gear suggested for that speed.
Always observe posted speed limits, and drive
according to the road conditions, which will en-
sure safe operation. Do not over-rev the engine
when shifting to a lower gear as it may cause
engine damage or loss of vehicle control.
Allowable maximum speed in each gear:
2–wheel drive models
GEAR MPH (km/h)
1st 35 (56)
2nd 60 (97)GEAR MPH (km/h)
3rd 87 (141)
4th —
5th —
6th —
4–wheel drive models
2H/4H position
GEAR MPH (km/h)
1st 34 (55)
2nd 60 (97)
3rd 87 (141)
4th —
5th —
6th —
4L position
GEAR MPH (km/h)
1st 13 (21)
2nd 23 (37)
3rd 33 (54)
4th 45 (73)
5th 57 (93)
6th —
WARNING
cBe sure the parking brake is fully re-
leased before driving. Failure to do so
can cause brake failure and lead to an
accident.
cDo not release the parking brake from
outside the vehicle.
cDo not use the gear shift in place of the
parking brake. When parking, be sure
the parking brake is fully engaged.
cDo not leave children unattended in a
vehicle. They could release the parking
brake and cause an accident.
PARKING BRAKE
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cThe SET indicator light may blink when the
cruise control main switch is turned ON
while pushing the ACCEL/RES,
COAST/SET, or CANCEL switch (located
on the steering wheel) . To properly set the
cruise control system, use the following pro-
cedures.
WARNING
Do not use the cruise control when driving
under the following conditions:
cWhen it is not possible to keep the
vehicle at a set speed.
cIn heavy traffic or in traffic that varies in
speed.
cOn winding or hilly roads.
cOn slippery roads (rain, snow, ice, etc.) .
cIn very windy areas.
Doing so could cause a loss of vehicle
control and result in an accident.
CAUTION
On manual transmission models, do not
shift into N (Neutral) without depressing
the clutch pedal when the cruise control is
set. Should this occur, depress the clutch
pedal and turn the main switch off imme-
diately. Failure to do so may cause engine
damage.
CRUISE CONTROL OPERATIONS
The cruise control allows driving at a speed be-
tween 25 - 89 MPH (40 - 144 km/h) without
keeping your foot on the accelerator pedal.
To turn on the cruise control,push the main
switch. The CRUISE indicator light in the instru-
ment panel comes on.
To set cruising speed,
accelerate the vehicle to
the desired speed, push the COAST/SET switch
and release it. The SET indicator light in the instru-
ment panel comes on. Take your foot off the accel-
erator pedal. Your vehicle maintains the set speed.
cTo pass another vehicle,depress the ac-
celerator pedal. When you release the
pedal, the vehicle returns to the previously
set speed.
cThe vehicle may not maintain the set speed
when going up or down steep hills. If this
happens, drive without the cruise control.To cancel the preset speed,use one of the
following three methods.
cPush the CANCEL button; the SET indicator
light in the instrument panel goes out.
cTap the brake pedal; the SET indicator light
goes out.
cTurn the main switch off. Both the CRUISE
indicator light and SET indicator light in the
instrument panel go out.
The cruise control is automatically canceled and
the SET light in the instrument panel goes out if:
cyou depress the brake or clutch pedal while
pushing the ACCEL/RES or COAST/SET
switch. The preset speed is deleted from
memory.
cthe vehicle slows down more than 8 MPH
(13 km/h) below the set speed.
cyou depress the clutch pedal (manual trans-
mission) , or move the shift selector lever to N
(Neutral) (automatic transmission) .
To reset at a faster cruising speed,use one
of the following three methods.
cDepress the accelerator pedal. When the
vehicle attains the desired speed, push and
release the COAST/SET switch.
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