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Infiniti FX35 / FX45. Manual - part 730

GW-4

< SERVICE INFORMATION >

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000001327955

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

Commercial Service Tool

INFOID:0000000001327956

Tool number
(Kent-Moore No.)
Tool name

Description

(J39570)
Chassis ear

Locating the noise

(J43980)
NISSAN Squeak and Rat-
tle Kit

Repairing the cause of noise

SIIA0993E

SIIA0994E

Tool name

Description

Engine ear

Locating the noise

SIIA0995E

SQUEAK AND RATTLE TROUBLE DIAGNOSES

GW-5

< SERVICE INFORMATION >

SQUEAK AND RATTLE TROUBLE DIAGNOSES

Work Flow

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CUSTOMER INTERVIEW

Interview the customer if possible, to determine the conditions thatexist when the noise occurs. Use the Diag-
nostic Worksheet during the interviewto document the facts and conditions when the noise occurs and any
customer'scomments; refer to

GW-9, "Diagnostic Worksheet"

. This information is necessary to duplicate the

conditions that existwhen the noise occurs.
• The customer may not be able to provide a detailed descriptionor the location of the noise. Attempt to obtain

all the facts and conditionsthat exist when the noise occurs (or does not occur).

• If there is more than one noise in the vehicle, be sure to diagnoseand repair the noise that the customer is

concerned about. This can be accomplishedby test driving the vehicle with the customer.

• After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics

are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.

• Squeak —(Like tennis shoes on a clean floor)

Squeak characteristics include the light contact/fast movement/broughton by road conditions/hard sur-
faces=higher pitch noise/softer surfaces=lowerpitch noises/edge to surface=chirping

• Creak—(Like walking on an old wooden floor)

Creak characteristics include firm contact/slow movement/twisting witha rotational movement/pitch depen-
dent on materials/often brought on by activity.

• Rattle—(Like shaking a baby rattle)

Rattle characteristics include the fast repeated contact/vibration orsimilar movement/loose parts/missing clip
or fastener/incorrect clearance.

• Knock —(Like a knock on a door)

Knock characteristics include hollow sounding/sometimes repeating/oftenbrought on by driver action.

• Tick—(Like a clock second hand)

Tick characteristics include gentle contacting of light materials/loosecomponents/can be caused by driver
action or road conditions.

• Thump—(Heavy, muffled knock noise)

Thump characteristics include softer knock/dead sound often brought on by activity.

• Buzz—(Like a bumble bee)

Buzz characteristics include high frequency rattle/firm contact.

• Often the degree of acceptable noise level will vary dependingupon the person. A noise that you may judge

as acceptable may be very irritatingto the customer.

• Weather conditions, especially humidity and temperature, may havea great effect on noise level.

DUPLICATE THE NOISE AND TEST DRIVE

If possible, drive the vehicle with the customer until the noise isduplicated. Note any additional information on
the Diagnostic Worksheet regardingthe conditions or location of the noise. This information can be used to
duplicatethe same conditions when you confirm the repair.

SBT842

GW-6

< SERVICE INFORMATION >

SQUEAK AND RATTLE TROUBLE DIAGNOSES

If the noise can be duplicated easily during the test drive, to helpidentify the source of the noise, try to dupli-
cate the noise with the vehiclestopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears tobe coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T models, drive position on A/T models).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.
• Drive the vehicle and attempt to duplicate the conditions thecustomer states exist when the noise occurs.
• If it is difficult to duplicate the noise, drive the vehicle slowlyon an undulating or rough road to stress the vehi-

cle body.

CHECK RELATED SERVICE BULLETINS

After verifying the customer concern or symptom, check ASIST for TechnicalService Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair thenoise.

LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE

Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Chassis Ear: J39570, Engine Ear and mechanics stethoscope).

Narrow down the noise to a more specific area and identify the causeof the noise by:

• removing the components in the area that you suspect the noiseis coming from.

Do not use too much force when removing clips and fasteners, otherwiseclips and fastener can be broken or
lost during the repair, resulting in thecreation of new noise.

• tapping or pushing/pulling the component that you suspect is causingthe noise.

Do not tap or push/pull the component with excessive force, otherwisethe noise will be eliminated only tem-
porarily.

• feeling for a vibration with your hand by touching the component(s)that you suspect is (are) causing the

noise.

• placing a piece of paper between components that you suspect arecausing the noise.
• looking for loose components and contact marks.

Refer to

GW-7, "Generic Squeak and Rattle Troubleshooting"

REPAIR THE CAUSE

• If the cause is a loose component, tighten the component securely.
• If the cause is insufficient clearance between components:
- separate components by repositioning or loosening and retighteningthe component, if possible.
- insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or urethane

tape. A Nissan Squeak and Rattle Kit (J43980) is available through your authorized Nissan Parts Depart-
ment.

CAUTION:

Do not use excessive force as many components are constructed of plasticand may be damaged.
NOTE:
Always check with the Parts Department for the latest parts information.
The following materials are contained in the Nissan Squeak and Rattle Kit (J43980). Each item can be ordered
separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100

135 mm (3.94

5.31 in)/76884-71L01: 60

85 mm (2.36

3.35 in)/76884-

71L02: 15

25 mm (0.59

0.98 in)

INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50

50 mm (1.97

1.97 in)/73982-

50Y00: 10 mm (0.39 in) thick, 50

50 mm (1.97

1.97 in)

INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30

50 mm (1.18

1.97 in)

FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15

25 mm (0.59

0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll. The following

materials, not found in the kit, can also be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE

SQUEAK AND RATTLE TROUBLE DIAGNOSES

GW-7

< SERVICE INFORMATION >

Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit.
Note: Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.

CONFIRM THE REPAIR

Confirm that the cause of a noise is repaired by test driving the vehicle.Operate the vehicle under the same
conditions as when the noise originallyoccurred. Refer to the notes on the Diagnostic Worksheet.

Generic Squeak and Rattle Troubleshooting

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Refer to Table of Contents for specific component removal and installationinformation.

INSTRUMENT PANEL

Most incidents are caused by contact and movement between:
1.

The cluster lid A and instrument panel

Acrylic lens and combination meter housing

Instrument panel to front pillar garnish

Instrument panel to windshield

Instrument panel mounting pins

Wiring harnesses behind the combination meter

A/C defroster duct and duct joint

These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.

CAUTION:

Do not use silicone spray to isolate a squeak or rattle. If you saturatethe area with silicone, you will not
be able to recheck the repair.

CENTER CONSOLE

Components to pay attention to include:
1.

Shifter assembly cover to finisher

A/C control unit and cluster lid C

Wiring harnesses behind audio and A/C control unit

The instrument panel repair and isolation procedures also apply to thecenter console.

DOORS

Pay attention to the:
1.

Finisher and inner panel making a slapping noise

Inside handle escutcheon to door finisher

Wiring harnesses tapping

Door striker out of alignment causing a popping noise on startsand stops

Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the Nissan Squeak and Rattle Kit (J43980) to repair the noise.

TRUNK

Trunk noises are often caused by a loose jack or loose items put intothe trunk by the owner.
In addition look for:

Trunk lid dumpers out of adjustment

Trunk lid striker out of adjustment

The trunk lid torsion bars knocking together

A loose license plate or bracket

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