light INFINITI FX35 2008 Service Manual
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![INFINITI FX35 2008 Service Manual
CYLINDER BLOCKEM-263
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If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then select
t INFINITI FX35 2008 Service Manual
CYLINDER BLOCKEM-263
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If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then select
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CYLINDER BLOCKEM-263
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If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then select
the main bearing and/or connecting rod bearing. Refer to "MAIN BEARING OIL CLEARANCE" and/or
"CONNECTING ROD BEARING OIL CLEARANCE".
CRANKSHAFT RUNOUT
Place V-block on precise flat table, and support the journals on the both end of crankshaft.
Place dial indicator straight up on the No. 3 journal.
While rotating crankshaft, read the movement of the pointer on dial indicator. (Total indicator reading)
If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation
Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the specified torque. Refer to EM-
242, "Disassembly and Assembly" for the tightening procedure.
Measure the inner diameter of connecting rod bearing with inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diameter) –
(Crankshaft pin journal diameter)
If the calculated value exceeds the limit, select proper connecting rod bearing according to connecting rod
big end diameter and crankshaft pin journal diameter to obtain the specified bearing oil clearance. Refer to
EM-250, "
How to Select Piston and Bearing".
Method of Using Plastigage
Remove oil and dust on crankshaft pin journal and the surfaces of each bearing completely.
Cut plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the specified
torque. Refer to EM-242, "
Disassembly and Assembly" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.
Remove connecting rod bearing cap and bearing, and using scale
on plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation
Limit : 0.10 mm (0.0039 in)
PBIC2378E
Standard : 0.020 - 0.045 mm (0.0008 - 0.0018 in) (actu-
al clearance)
Limit : 0.055 mm (0.0022 in)
PBIC1642E
PBIC1149E
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![INFINITI FX35 2008 Service Manual
EM-264
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CYLINDER BLOCK
Install main bearings to cylinder block and main bearing caps, and
tighten main bearing cap bolts with main bearing to the specified
torque. Re INFINITI FX35 2008 Service Manual
EM-264
< SERVICE INFORMATION >[VK45DE]
CYLINDER BLOCK
Install main bearings to cylinder block and main bearing caps, and
tighten main bearing cap bolts with main bearing to the specified
torque. Re](/img/42/57017/w960_57017-2747.png)
EM-264
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CYLINDER BLOCK
Install main bearings to cylinder block and main bearing caps, and
tighten main bearing cap bolts with main bearing to the specified
torque. Refer to EM-242, "
Disassembly and Assembly" for the
tightening procedure.
Measure the inner diameter of main bearing with bore gauge.
(Bearing clearance) = (Main bearing inner diamet er) – (Crankshaft main journal diameter)
If the calculated value exceeds the limit, select proper main bearing according to main bearing inner diame-
ter and crankshaft main journal diameter to obtain the specified bearing oil clearance. Refer to EM-250,
"How to Select Piston and Bearing".
Method of Using Plastigage
Remove oil and dust on crankshaft main journal and the surfaces of each bearing completely.
Cut plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
Install main bearings to cylinder block and main bearing caps, and tighten main bearing bolts with main bear- ing to the specified torque. Refer to EM-242, "
Disassembly and Assembly" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.
Remove main bearing caps and bearings, and using scale on plas- tigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
CRUSH HEIGHT OF MAIN BEARING
When main bearing cap is removed after being tightened to the specified torque with main bearings installed, the tip end of bearing
must protrude. Refer to EM-242, "
Disassembly and Assembly" for
the tightening procedure.
If the standard is not met, replace main bearings.
CRUSH HEIGHT OF CONNECTING ROD BEARING
PBIC1644E
Standard No. 1 and 5 journal : 0.001 - 0.011 mm (0.00004 - 0.0004 in)
No. 2, 3 and 4 journal : 0.007 - 0.017 mm (0.0003 - 0.0007 in)
Limit No. 1 and 5 journal : 0.021 mm (0.0008 in)
No. 2, 3 and 4 journal : 0.027 mm (0.0011 in)
PBIC1149E
Standard : There must be crush height.
SEM502G
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HOW TO USE THIS MANUALGI-17
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Harness Indication
14 Wire color This shows a code for the color of the wire.
B = Black
W = White
R = Red
G = Green
L = Blue
Y = Yellow
LG = Light Green BR = Brown
OR or O = Orange
P = Pink
PU or V (Violet) = Purple
GY or GR = Gray
SB = Sky Blue
CH = Dark Brown
DG = Dark Green
When the wire color is striped, the base color is given first, followed by the stripe color as shown
below:
Example: L/W = Blue with White Stripe
15 Option description This shows a description of the option abbreviation used on the page.
16 Switch This shows that continuity exists between terminals 1 and 2 when the switch is in the A posi-
tion. Continuity exists between terminals 1 and 3 when the switch is in the B position.
17 Assembly parts Connector terminal in component shows that it is a harness incorporated assembly.
18 Cell code This identifies each page of the wiring diagram by section, system and wiring diagram page
number.
19 Current flow arrow Arrow indicates electric current flow, especially where the direction of standard flow (vertically
downward or horizontally from left to right) is difficult to follow.
A double arrow “ ” shows that current can flow in either direction depending on circuit operation.
20 System branch This shows that the system branches to another system identified by cell code (section and
system).
21 Page crossing This arrow shows that the circuit continues to another page identified by cell code.
The C will match with the C on another page within the system other than the next or preceding
pages.
22 Shielded line The line enclosed by broken line circle shows shield wire.
23 Component box in
wave line This shows that another part of the component is also shown on another page (indicated by
wave line) within the system.
24 Component name This shows the name of a component.
25 Connector number This shows the connector number.
The letter shows which harness the connector is located in.
Example:
M: main harness. For detail and to locate the connector, refer to PG section "Main
Harness", “Harness Layout”. A coordinate grid is included for complex harnesses to aid in lo-
cating connectors.
26 Ground (GND) The line spliced and grounded under wire color shows that ground line is spliced at the ground-
ed connector.
27 Ground (GND) This shows the ground connection. For detailed ground distribution information, refer to
"Ground Distribution" in PG section.
28 Connector views This area shows the connector faces of the components in the wiring diagram on the page.
29 Common component Connectors enclosed in broken line show that these connectors belong to the same compo-
nent.
30 Connector color This shows a code for the color of the connector. For code meaning, refer to wire color codes,
Number 14 of this chart.
31 Fusible link and fuse
box This shows the arrangement of fusible link(s) and fuse(s), used for connector views of "POW-
ER SUPPLY ROUTING" in PG section.
The open square shows current flow in, and the shaded square shows current flow out.
32 Reference area This shows that more information on the Super Multiple Junction (SMJ) and Joint Connectors
(J/C) exists on the PG section. Refer to "Reference Area" for details.
Num-
ber Item Description
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GI-26
< SERVICE INFORMATION >
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the conditions of the
problem.
Vehicle Vibration
The problem may occur or become worse while drivi ng on a rough road or when engine is vibrating (idle with
A/C on). In such a case, you will want to check for a vi bration related condition. Refer to the following illustra-
tion.
CONNECTORS & HARNESS
Determine which connectors and wiring harness would affect the electrical system you are inspecting. Gently
shake each connector and harness while monitoring the sy stem for the incident you are trying to duplicate.
This test may indicate a loose or poor electrical connection.
HINT
Connectors can be exposed to moisture. It is possible to get a thin film of corrosion on the connector termi-
nals. A visual inspection may not reveal this without disconnecting the connector. If the problem occurs inter-
mittently, perhaps the problem is caused by corrosion. It is a good idea to disconnect, inspect and clean the
terminals on related connectors in the system.
SENSORS & RELAYS
Gently apply a slight vibration to sensors and relays in the system you are inspecting.
This test may indicate a loose or poorly mounted sensor or relay.
ENGINE COMPARTMENT
There are several reasons a vehicle or engine vibration could cause an e\
lectrical complaint. Some of the
things to check for are:
Connectors not fully seated.
Wiring harness not long enough and is being stressed due to engine vibrations or rocking.
Wires laying across brackets or moving components.
Loose, dirty or corroded ground wires.
Wires routed too close to hot components.
To inspect components under the hood, start by verifyi ng the integrity of ground connections. (Refer to Ground
Inspection described later.) First check that the system is properly grounded. Then check for loose connection
by gently shaking the wiring or components as previous ly explained. Using the wiring diagrams inspect the
wiring for continuity.
BEHIND THE INSTRUMENT PANEL
An improperly routed or improperly clamped harness can become pinched during accessory installation. Vehi-
cle vibration can aggravate a harness which is routed along a bracket or near a screw.
UNDER SEATING AREAS
An unclamped or loose harness can cause wiring to be pinched by seat components (such as slide guides)
during vehicle vibration. If the wiring runs under s eating areas, inspect wire routing for possible damage or
pinching.
Heat Sensitive
SGI839
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GI-30
< SERVICE INFORMATION >
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Clean as required to assure good contact.
Reinstall bolt or screw securely.
Inspect for “add-on” accessories which may be interfering with the ground circuit.
If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of thewires are clean, securely fastened and providing a good ground path. If multiple wires are cased in one eye-
let make sure no ground wires have excess wire insulation.
For detailed ground distribution information, re fer to “Ground Distribution” in PG section.
Voltage Drop Tests
Voltage drop tests are often used to find components or circuits which have excessive resistance. A voltage
drop in a circuit is caused by a resistance when the circuit is in operation.
Check the wire in the illustration. When measuring resist ance with DMM, contact by a single strand of wire will
give reading of 0 ohms. This would indicate a good circui t. When the circuit operates, this single strand of wire
is not able to carry the current. The single strand will have a high resistance to the current. This will be picked
up as a slight voltage drop.
Unwanted resistance can be caused by many situations as follows:
Undersized wiring (single strand example)
Corrosion on switch contacts
Loose wire connections or splices.
If repairs are needed always use wire that is of the same or larger gauge.
MEASURING VOLTAGE DROP — ACCUMULATED METHOD
Connect the DMM across the connector or part of the ci rcuit you want to check. The positive lead of the
DMM should be closer to power and the negative lead closer to ground.
Operate the circuit.
The DMM will indicate how many volts are being used to “push” current through that part of the circuit.
SGI853
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SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-31
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Note in the illustration that there is an excessi ve 4.1 volt drop between the battery and the bulb.
MEASURING VOLTAGE DRO P — STEP-BY-STEP
The step-by-step method is most useful for isolating ex cessive drops in low voltage systems (such as those in
“Computer Controlled Systems”).
Circuits in the “Computer Controlled System” operate on very low amperage.
The (Computer Controlled) system oper ations can be adversely affected by any variation in resistance in the
system. Such resistance variation may be caused by poor connection, improper installation, improper wire
gauge or corrosion.
The step by step voltage drop test can identify a component or wire with too much resistance.
Control Unit Circuit Test
System Description:When the switch is ON, the control unit lights up the lamp.
INPUT-OUTPUT VOLTAGE CHART
SGI974
SAIA0258E
MGI034A
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GI-32
< SERVICE INFORMATION >
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
The voltage value is based on the body ground.
*:If high resistance exists in the switch side circuit (caused by a single strand), terminal 1 does not detect battery voltage. Control unit
does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not supply power to ligh t up the
lamp.
INPUT-OUTPUT VOLTAGE CHART
The voltage value is based on the body ground.
*:If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0V. Cont rol unit does
not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to light u p the lamp.
Control Units and Electrical PartsINFOID:0000000001325673
PRECAUTIONS
Never reverse polarity of battery terminals.
Install only parts specified for a vehicle.
Before replacing the control unit, check the input and output and functions of the component parts.
Do not apply excessive force when disconnecting a connector.
Do not apply excessive shock to the control unit by dropping or hit- ting it.
Be careful to prevent condensation in the control unit due to rapid temperature changes and do not let water or rain get on it. If water
is found in the control unit, dry it fully and then install it in the vehi-
cle.
Be careful not to let oil to get on the control unit connector.
Avoid cleaning the control unit with volatile oil.
Do not disassemble the control unit, and do not remove the upper and lower covers.
Pin
No. Item Condition
Vo l ta g e
value [V] In case of high resistance such as single strand [V] *
1Switch Switch ON Battery voltage Lower than battery voltage Approx. 8 (Example)
Switch OFF Approx. 0 Approx. 0
2Lamp Switch ON Battery voltage App
rox. 0 (Inoperative lamp)
Switch OFF Approx. 0 Approx. 0
MGI035A
Pin
No. Item Condition
Vo l ta g e
value [V] In case of high resistance such as single strand [V] *
1Lamp Switch ON Approx. 0 Battery voltage (Inoperative lamp)
Switch OFF Battery voltage Battery voltage
2Switch Switch ON Approx. 0 Higher than 0 Approx. 4 (Example)
Switch OFF Approx. 5 Approx. 5
SAIA0255E
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TERMINOLOGYGI-49
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Exhaust gas recirculation control-BPT
valve EGRC-BPT valve BPT valve
Exhaust gas recirculation control-solenoid
valve EGRC-solenoid valve EGR control solenoid valve
Exhaust gas recirculation temperature sen-
sor EGRT sensor Exhaust gas temperature sensor
EGR temperature sensor
Flash electrically erasable programmable
read only memory FEEPROM ***
Flash erasable programmable read only
memory FEPROM ***
Flexible fuel sensor FFS ***
Flexible fuel system FF system ***
Fuel pressure regulato r *** Pressure regulator
Fuel pressure regulator control solenoid
valve *** PRVR control solenoid valve
Fuel trim FT ***
Heated Oxygen sensor HO2S Exhaust gas sensor
Idle air control system IAC system Idle speed control
Idle air control valve-air regulato r IACV-air regulator Air regulator
Idle air control valve-auxiliary air control
valve IACV-AAC valve Auxiliary
air control (AAC) valve
Idle air control valve-FICD solenoid valve IACV-FICD solenoid valve FICD solenoid valve
Idle air control valve-idle up control sole-
noid valve IACV-idle up control solenoid valve Idle up control solenoid valve
Idle speed control-FI pot ISC-FI pot FI pot
Idle speed control system ISC system ***
Ignition control IC ***
Ignition control module ICM ***
Indirect fuel injection system IFI system ***
Intake air IA Air
Intake air temperature sensor IAT sensor Air temperature sensor
Knock *** Detonation
Knock sensor KS Detonation sensor
Malfunction indicator lamp MIL Check engine light
Manifold absolute pressure MAP ***
Manifold absolute pressure sensor MAPS ***
Manifold differential pressure MDP ***
Manifold differential pressure sensor MDPS ***
Manifold su rface temperature MST ***
Manifold surface temperature sensor MSTS ***
Manifold vacuum zone MVZ ***
Manifold vacuum zone sensor MVZS ***
Mass air flow sensor MAFS Air flow meter
Mixture control solenoid valve MC solenoid valve Air-fuel ratio control solenoid valve
Multiport fuel injection system MFI system Fuel injection control NEW TERM
NEW ACRONYM /
ABBREVIATION OLD TERM
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SQUEAK AND RATTLE TROUBLE DIAGNOSESGW-5
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SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work FlowINFOID:0000000001327957
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 t he 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 w hen 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/fa st movement/broughton by road conditions/hard sur-
faces=higher pitch noise/softer surfaces=l owerpitch noises/edge to surface=chirping
Creak—(Like walking on an old wooden floor)
Creak characteristics include firm contact/slow mo vement/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 contac t/vibration orsimilar movement/loose parts/missing clip
or fastener/incorrect clearance.
Knock —(Like a knock on a door)
Knock characteristics include hollow sounding/some times repeating/oftenbrought on by driver action.
Tick—(Like a clock second hand) Tick characteristics include gentle contacting of li ght materials/loosecomponents/can be caused by driver
action or road conditions.
Thump—(Heavy, muffled knock noise) Thump characteristics include softer k nock/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 temper ature, 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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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-cl utch 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 conditi ons thecustomer states exist when the noise occurs.
If it is difficult to duplicate the noise, drive the v ehicle 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 Technica lService Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, fo llow the procedure to repair thenoise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pi npoint 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 t hat 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 t he 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 l oosening 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 av ailable 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 Departm ent 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 occu r. 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 al so be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE
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