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Nissan Pathfinder. Manual - part 224

BR-4

< PRECAUTION >

PRECAUTIONS

• Always loosen the brake tube flare nut with a flare nut wrench.

• Tighten the brake tube flare nut to the specified torque with

crowfoot (A) and torque wrench (B).

• Always confirm the specified tightening torque when install-

ing the brake pipes.

• Turn the ignition switch OFF and disconnect the ABS actuator

and electric unit (control unit) connector or the battery nega-

tive terminal before performing the work.

• Check that no brake fluid leakage is present after replacing

the parts.

• Burnish the brake contact surfaces after refinishing or replac-

ing rotors, after replacing pads, or if a soft pedal occurs at

very low mileage.

- Front brake: refer to

BR-18, "Brake Burnishing"

- Rear brake: refer to

BR-19, "Brake Burnishing"

JPFIA0001ZZ

PREPARATION

BR-5

< PREPARATION >

PREPARATION

Special Service Tool

INFOID:0000000009177167

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tool

INFOID:0000000009177168

Tool number
(Kent-Moore No.)
Tool name

Description

( — )
(J-46532)
Brake and clutch pedal height mea-
surement tool

Measuring brake pedal height

38-PFM92-GYX/5
( — )
GYR On-Car Brake Lathe

Refinishing rotors

LFIA0227E

ALFIA0092ZZ

Tool name

Description

1. Flare nut crowfoot
2. Torque wrench

Removing and installing brake piping
a: 10 mm (0.39 in)/12 mm (0.47 in)

Power tool

Loosening nuts, screws and bolts

S-NT360

PIIB1407E

BR-6

< SYMPTOM DIAGNOSIS >

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000009177163

Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.

×: Applicable

Reference page

Possible cause and
SUSPECTED PARTS

Pad

s -

Pad

- un

wea

s da

Roto

r im

r da

Rotor runout

Roto

r d

efo

rma

tio

Roto

r d

efl

ectio

Rotor rust

Roto

r th

riat

PROPELLER SHAF

DIFFERE

IAL

AXLE

AND SUSPE

ION

TIRE

ROA

WHEEL

DRIVE SHAF

STEERI

Symptom

BRAKE

Noise

Shake

Shimmy, Shudder

BRAKE PEDAL

BR-7

< BASIC INSPECTION >

BASIC INSPECTION

BRAKE PEDAL

Inspection

INFOID:0000000009177169

BRAKE PEDAL HEIGHT

Check the brake pedal height (H

) between the dash lower panel (1)

and the brake pedal upper surface.

CAUTION:

Check the brake pedal height with the floor trim removed.

STOP LAMP SWITCH AND ASCD CANCEL SWITCH

Check the clearance (A) between the switch assembly bracket (3),

the stop lamp switch (1) and the ASCD cancel switch (2).

CAUTION:

The stop lamp must turn off when the brake pedal is released.

NOTE:

Pull the brake pedal pad to check that both the stop lamp switch (1)

and ASCD cancel switch (2) contact ends to brake pedal bracket (3)

clearance (A) are within specification.

BRAKE PEDAL PLAY

Check that brake pedal play does not exist.

DEPRESSED BRAKE PEDAL HEIGHT

Check the brake pedal height (H

) between the dash lower panel (1)

and the brake pedal upper surface when depressing the brake pedal

at 490 N (50 kg, 110 lb) while turning engine ON.

CAUTION:

Check the depressed brake pedal height with the floor trim

removed.

Brake pedal height (H

) : Refer to

BR-48, "Brake Pedal"

JPFIA0065ZZ

Clearance (A) : Refer to

BR-48, "Brake Pedal"

ALFIA0248ZZ

Depressed brake pedal
height (H

: Refer to

BR-48, "Brake Pedal"

JPFIA0068ZZ

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