Nissan Leaf. Manual — part 1041
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
RSU-5
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000010119452
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable
Reference
,
,
—
—
,
,
Possible cause and SUSPECTED PARTS
Im
p
rop
er i
ns
ta
lla
tio
n,
lo
os
en
es
s
Sh
oc
k a
b
so
rb
er de
fo
rm
at
io
n,
d
a
m
a
ge
or d
e
flec
tio
n
B
us
hin
g
or m
ou
nt
ing
d
ete
rio
rati
on
P
art
s interference
S
pri
ng
fa
tig
ue
S
us
pe
ns
ion
lo
os
e
nes
s
In
co
rrec
t wh
ee
l a
lig
nm
en
t
REA
R
AXLE
TI
RE
ROAD W
H
EEL
BR
AK
E
Symptom
REAR SUSPENSION
Noise
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
×
Shimmy
×
×
×
×
×
×
×
×
×
Shudder
×
×
×
×
×
×
×
Poor quality ride or handling
×
×
×
×
×
×
×
×
×
RSU-6
< PERIODIC MAINTENANCE >
REAR SUSPENSION ASSEMBLY
PERIODIC MAINTENANCE
REAR SUSPENSION ASSEMBLY
Inspection
INFOID:0000000010119453
COMPONENT PART
Check the mounting conditions (looseness, backlash) of each component and component conditions (wear,
damage) are normal.
SHOCK ABSORBER ASSEMBLY
Check for oil leakage, damage, and replace if necessary.
WHEEL ALIGNMENT
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< PERIODIC MAINTENANCE >
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WHEEL ALIGNMENT
Inspection
INFOID:0000000010119454
DESCRIPTION
CAUTION:
• The adjustment mechanisms of camber and toe-in are not included.
• If camber and toe-in is outside the standard, check front suspension parts for wear and damage.
Replace suspect parts if a malfunction is detected.
Measure wheel alignment under unladen conditions.
NOTE:
“Unladen conditions” means that fluids and lubricants are full. Tire repair kit and mats are in designated posi-
tions.
PRELIMINARY CHECK
Check the following:
• Tires for improper air pressure and wear. Refer to
• Road wheels for runout.
• Wheel bearing axial end play. Refer to
• Shock absorber operation.
• Each mounting point of axle and suspension for looseness and deformation.
• Each of rear suspension beam and shock absorber for cracks, deformation, and other damage.
• Vehicle height (posture).
GENERAL INFORMATION AND RECOMMENDATIONS
• A four-wheel thrust alignment should be performed.
- This type of alignment is recommended for any NISSAN/INFINITI vehicle.
- The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel is
centered.
- The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
- The rack should be checked to ensure that it is level.
• Check the machine is properly calibrated.
- Your alignment equipment should be regularly calibrated in order to give correct information.
- Check with the manufacturer of your specific equipment for their recommended Service/Calibration Sched-
ule.
ALIGNMENT PROCESS
IMPORTANT:
Use only the alignment specifications listed in this Service Manual.
• When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Never use these indicators.
- The alignment specifications programmed into your machine that operate these indicators may not be cor-
rect.
- This may result in an ERROR.
• 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 Compensa-
tion” 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're using for more information.
RSU-8
< REMOVAL AND INSTALLATION >
REAR SHOCK ABSORBER
REMOVAL AND INSTALLATION
REAR SHOCK ABSORBER
Exploded View
INFOID:0000000010119455
Removal and Installation
INFOID:0000000010119456
REMOVAL
1. Remove wheel and tire using power tool. Refer to
2. Set suitable jack under rear suspension beam.
CAUTION:
• Do not damage the suspension beam with a jack.
• Check the stable condition when using a jack.
3. Remove shock absorber bolt (lower side) (1) using power tool.
4. Remove shock absorber mask. Refer to
.
5. Remove cap.
6. Remove piston rod lock nut, and then remove washer and bushing.
NOTE:
1.
Rear suspension beam
2.
Shock absorber
3.
Bound bumper
4.
Bound bumper cover
5.
Washer
6.
Bushing
7.
Distance tube
8.
Piston rod lock nut
9.
Cap
: N·m (kg-m, ft-lb)
: Always replace after every disassembly.
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