Nissan Frontier. Manual — part 825
FSU-4
< PREPARATION >
PREPARATION
Spring compressor
Removing and installing coil spring
Power tool
Loosening nuts, screws and bolts
Tool name
Description
NT717
PIIB1407E
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
FSU-5
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000009478833
Use the chart below to help you find the cause of the symptom. Repair or replace parts as necessary.
x: Applicable
Reference page
Possible Cause and
SUSPECTED PARTS
Im
pro
per in
st
a
lla
tion
, lo
os
en
es
s
Sh
oc
k ab
so
rbe
r de
fo
rma
tio
n,
da
ma
ge
or
de
fle
ct
ion
Bu
sh
in
g o
r
m
o
un
ting
de
te
riora
tio
n
Part
s int
erference
S
p
ring
fa
tig
ue
Su
sp
en
si
on
lo
os
en
es
s
Inc
o
rrec
t whe
el
al
ig
nm
en
t
S
ta
bi
liz
er ba
r
fa
tig
ue
DRIVE SHA
F
T
D
IFFE
RE
NT
IA
L
WHEEL HUB AND BE
ARING
TIRES
ROA
D
WHEEL
BRAKES
STEERI
N
G
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
×
×
×
Shimmy
×
×
×
×
×
×
×
×
×
×
Shudder
×
×
×
×
×
×
×
×
Poor quality ride or handling
×
×
×
×
×
×
×
×
×
×
FSU-6
< PERIODIC MAINTENANCE >
ON-VEHICLE SERVICE
PERIODIC MAINTENANCE
ON-VEHICLE SERVICE
Front Suspension Parts
INFOID:0000000009478834
Check front suspension parts for excessive play, cracks, wear and
other damage.
• Shake each front wheel to check for excessive play. If looseness is
noted:
- Inspect wheel bearing end play. Refer to
.
- Check ball joint end play. Refer to
.
• Make sure that the cotter pin is inserted in drive shaft end (4WD
only).
• Retighten all nuts and bolts to the specified torque.
• Check shock absorber for oil leakage and other damage.
• Check suspension ball joint for grease leakage and ball joint dust
cover for cracks and other damage.
Front Wheel Alignment
INFOID:0000000009478835
PRELIMINARY INSPECTION
WARNING:
Always adjust the alignment with the vehicle on a flat surface.
NOTE:
If alignment is out of specification, inspect and replace any damaged or worn rear suspension parts before
making any adjustments.
1. Check and adjust the wheel alignment with the vehicle under unladen conditions. “Unladen conditions”
means that the fuel, coolant, and lubricant are full; and that the spare tire, jack, hand tools and mats are in
their designated positions.
2. Check the tires for incorrect air pressure and excessive wear.
3. Check the wheels for run out and damage. Refer to
.
4. Check the wheel bearing axial end play. Refer to
FAX-5, "On-Vehicle Inspection and Service"
.
5. Check the shock absorbers for leaks or damage.
6. Check each mounting point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the suspension member for any damage.
8. Check the vehicle height. Refer to
FSU-25, "Wheelarch Height (Unladen*1)"
GENERAL INFORMATION AND RECOMMENDATIONS
1. A Four-Wheel Thrust Alignment should be performed.
• This type of alignment is recommended for any NISSAN vehicle.
• The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel
is centered.
• The alignment machine itself should be capable of accepting any NISSAN vehicle.
• The alignment machine should be checked to ensure that it is level.
Suspension component torques : Refer to
.
SMA525A
SFA392B
ON-VEHICLE SERVICE
FSU-7
< PERIODIC MAINTENANCE >
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2. Make sure the alignment machine is properly calibrated.
• Your alignment machine should be regularly calibrated in order to give correct information.
• Check with the manufacturer of your specific alignment machine for their recommended Service/Cali-
bration Schedule.
THE ALIGNMENT PROCESS
IMPORTANT: Use only the alignment specifications listed in this Service Manual. Refer to
.
1. When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Do NOT use these indicators.
• The alignment specifications programmed into your alignment machine that operate these indicators
may not be correct.
• This may result in an ERROR.
2. Most camera-type alignment machines are equipped with both "Rolling Compensation" method and
optional "Jacking Compensation" method to "compensate" the alignment targets or head units. "Rolling
Compensation" is the preferred method.
• If using the "Rolling Compensation" method, after installing the alignment targets or head units, push or
pull on the rear wheel to move the vehicle. Do not push or pull on the vehicle body.
• If using the "Jacking Compensation" method, after installing the alignment targets or head units, raise
the vehicle and rotate the wheels 1/2 turn both ways.
NOTE:
Do not use the "Rolling Compensation" method if you are using sensor-type alignment equipment.
• Follow all instructions for the alignment machine you are using for more information.
CAMBER AND CASTER
1. Measure camber and caster of both the right and left wheels with a suitable alignment gauge and adjust
as necessary to specification.
NOTE:
Some vehicles may be equipped with straight (non-adjustable) lower link bolts and washers. In order to
adjust camber and caster on these vehicles, first replace the lower link bolts and washers with adjustable
(cam) bolts and washers.
2. If outside of the specified value, adjust camber and caster using
the adjusting bolts in the front lower link.
CAUTION:
After adjusting the camber then check the toe-in.
NOTE:
Camber changes about 3' (0.05
°) minutes with each graduation
of one adjusting bolt. Refer to table below for examples of lower
link adjusting bolt effect on camber and caster.
Camber
FSU-24, "Wheel Alignment (Unlad-
WEIA0115E
Rear adjusting
bolt
1 In
1 Out
1 In
1 Out
0
0
1 In
1 Out
Front adjusting
bolt
1 Out
1 In
1 In
1 Out
1 In
1 Out
0
0
Camber
Degree minute
(Decimal degree)
0' (0
°)
0' (0
°)
7' (0.12
°)
- 7' (-0.12
°)
3' (0.05
°)
- 3' (-0.05
°)
3' (0.05
°)
- 3' (-0.05
°)
Caster
Degree minute
(Decimal degree)
- 12' (-0.20
°)
12' (0.20
°)
0' (0
°)
0' (0
°)
6' (0.10
°)
- 6' (-0.10
°)
- 6' (-0.10
°)
6' (0.10
°)
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