Infiniti FX35 / FX45. Manual — part 730
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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
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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
. 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
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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
1.
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).
2.
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.
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
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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
2.
Acrylic lens and combination meter housing
3.
Instrument panel to front pillar garnish
4.
Instrument panel to windshield
5.
Instrument panel mounting pins
6.
Wiring harnesses behind the combination meter
7.
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
2.
A/C control unit and cluster lid C
3.
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
2.
Inside handle escutcheon to door finisher
3.
Wiring harnesses tapping
4.
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:
1.
Trunk lid dumpers out of adjustment
2.
Trunk lid striker out of adjustment
3.
The trunk lid torsion bars knocking together
4.
A loose license plate or bracket
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