Infiniti QX4 (R50). Manual — part 98
Special Service Tools
NBBR0004
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
KV40106500
(J25852-B)
Rear wheel bearing
puller
NT724
Removing rear wheel sensor rotor
Commercial Service Tools
NBBR0005
Tool name
Description
1 Flare nut crowfoot
2 Torque wrench
NT360
Removing and installing each brake piping
a: 10 mm (0.39 in)
Brake fluid pressure
gauge
NT151
Measuring brake fluid pressure
Rear wheel sensor rotor
drift
NT509
Installing rear wheel sensor rotor
a: 75 mm (2.95 in) dia.
b: 63 mm (2.48 in) dia.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
ST
RS
BT
HA
SC
EL
IDX
PREPARATION
Special Service Tools
BR-5
NBBR0085
NVH
T
roubleshooting
Chart
NBBR0085S01
Use
the
chart
below
to
help
you
find
the
cause
of
the
symptom.
If
necessary
,
repair
or
replace
these
parts.
Reference
page
—
—
—
—
—
Possible
cause
and
SUSPECTED
P
A
R
T
S
Linings or pads - damaged
Linings or pads - uneven wear
Return spring damaged
Shims damaged
Rotor or drum imbalance
Rotor or drum damage
Rotor or drum runout
Rotor or drum deformation
Rotor or drum deflection
Rotor or drum rust
Rotor thickness variation
Drum out of round
PROPELLER SHAFT
DIFFERENTIAL
DRIVE SHAFT
AXLE
SUSPENSION
TIRES
ROAD WHEEL
STEERING
Symptom
BRAKE
Noise
××××
××××××××
Shake
×
×
××××××
Shimmy
,
Judder
××××××××
×××××
×
:
Applicable
NOISE,
V
IBRATION
AND
HARSHNESS
(NVH)
T
ROUBLESHOOTING
NVH
T
roubleshooting
Chart
BR-6
SBR451D
Checking Brake Fluid Level
NBBR0006
I
Check fluid level in reservoir tank. It should be between Max
and Min lines on reservoir tank.
I
If fluid level is extremely low, check brake system.
I
If the brake warning lamp comes on, check brake fluid level
switch and parking brake switch.
SBR389C
Checking Brake Line
NBBR0007
CAUTION:
If leakage occurs around joints, retighten or, if necessary,
replace damaged parts.
1.
Check brake lines (tubes and hoses) for cracks, deterioration
or other damage. Replace any damaged parts.
2.
Check for oil leakage by fully depressing brake pedal while
engine is running.
SBR419C
Changing Brake Fluid
NBBR0008
CAUTION:
I
Refill with new brake fluid “DOT 3”.
I
Always keep fluid level higher than minimum line on res-
ervoir tank.
I
Never reuse drained brake fluid.
I
Be careful not to splash brake fluid on painted areas; it
may cause paint damage. If brake fluid is splashed on
painted areas, wash it away with water immediately.
1.
Clean inside of reservoir tank, and refill with new brake fluid.
2.
Connect a vinyl tube to each air bleeder valve.
3.
Drain brake fluid from each air bleeder valve by depressing
brake pedal.
4.
Refill until brake fluid comes out of each air bleeder valve.
Use same procedure as in bleeding hydraulic system to refill
brake fluid.
Refer to “Bleeding Brake System”, BR-8.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
ST
RS
BT
HA
SC
EL
IDX
ON-VEHICLE SERVICE
Checking Brake Fluid Level
BR-7
SBR995
Bleeding Brake System
=NBBR0009
CAUTION:
I
Carefully monitor brake fluid level at master cylinder dur-
ing bleeding operation.
I
If master cylinder is suspected to have air inside, bleed air
from master cylinder first. Refer to “Installation”, “MAS-
TER CYLINDER”, BR-18.
I
Fill reservoir with new brake fluid “DOT 3”. Make sure it is
full at all times while bleeding air out of system.
I
Place a container under master cylinder to avoid spillage
of brake fluid.
I
Turn ignition switch OFF and disconnect ABS actuator
and electric unit connectors or battery ground cable.
I
Bleed air in the following order.
1. LSV air bleeder (4WD)
2. Left rear brake
3. Right rear brake
4. Left front brake
5. Right front brake
SBR419C
1.
Connect a transparent vinyl tube to air bleeder valve.
2.
Fully depress brake pedal several times.
3.
With brake pedal depressed, open air bleeder valve to release
air.
4.
Close air bleeder valve.
5.
Release brake pedal slowly.
6.
Repeat steps 2. through 5. until clear brake fluid comes out of
air bleeder valve.
7.
Tighten air bleeder valve.
: 7 - 9 N·m (0.7 - 0.9 kg-m, 61 - 78 in-lb)
ON-VEHICLE SERVICE
Bleeding Brake System
BR-8
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