Condition NISSAN TEANA 2008 Service Manual

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< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
SYMPTOM DIAGNOSIS
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work FlowINFOID:0000000003943092
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diag-
nostic Worksheet during the interview to document the facts and conditions when the noise occurs and any of
the customer's comments; refer to GW-6, "
Diagnostic Worksheet". This information is necessary to duplicate
the conditions that exist when the noise occurs.
• The customer may not be able to provide a detailed description or the location of the noise. Attempt to obtain
all the facts and conditions that exist when the noise occurs (or does not occur).
 If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer is
concerned about. This can be accomplished by a test drive 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/brought on by road conditions/hard surfaces
= higher pitch noise/softer surfaces = lower pitch noises/edge to surface = chirping
 Creak – (Like walking on an old wooden floor)
Creak characteristics include firm contact/slow movement/twisting with a 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 or similar movement/loose parts/missing
clip or fastener/incorrect clearance.
 Knock – (Like a knock on a door)
Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action.
 Tick – (Like a clock second hand)
Tick characteristics include gentle contacting of light materials/loose components/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 depending upon the person. A noise that a technician
may judge as acceptable may be very irritating to the customer.
 Weather conditions, especially humidity and temperature, may have a great effect on noise level.
DUPLICATE THE NOISE AND TEST DRIVE
SBT842

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when the repair is reconfirmed.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be 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 model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.
 Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
 If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
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
(Engine Ear or mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
 Removing the components in the area that is are suspected to be the cause of the noise.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.
 Tapping or pushing/pulling the component that is are suspected to be the cause of the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only tem-
porarily.
 Feeling for a vibration by hand by touching the component(s) that is are suspected to be the cause of the
noise.
 Placing a piece of paper between components that is are suspected to be the cause of the noise.
 Looking for loose components and contact marks.
Refer to GW-4, "
Inspection Procedure".
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 retightening the component, if possible.
- Insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. These insulators are available through the authorized Nissan Parts Department.
CAUTION:
Never use excessive force as many components are constructed of plastic and may be damaged.
NOTE:
 URETHANE PADS
Insulates connectors, harness, etc.
 INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
 INSULATOR (Light foam block)
 FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
The following materials, not available through NISSAN Parts Department, can also be used to repair
squeaks and rattles.
 UHMW(TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
 SILICONE GREASE
Used in place of UHMW tape that is be visible or does not fit.
Note: Will only last a few months.
 SILICONE SPRAY
Used when grease cannot be applied.
 DUCT TAPE
Used to eliminate movement.
CONFIRM THE REPAIR

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< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
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 originally occurred. Refer to the notes on the Diagnostic Worksheet.
Inspection ProcedureINFOID:0000000003943093
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. 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:
Never use silicone spray to isolate a squeak or rattle. If the area is saturated with silicone, the recheck
of repair becomes impossible.
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 the center console.
DOORS
Pay attention to the following:
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 starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. The areas can usually be insulated with felt cloth tape or insulator foam blocks to
repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the customer.
In addition look for the following:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it is important to note the position the seat is in and the load placed on the seat
when the noise occurs. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

HA-1
VENTILATION, HEATER & AIR CONDITIONER
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SECTION HA
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CONTENTS
HEATER & AIR CONDITIONING SYSTEM
BASIC INSPECTION ....................................3
DIAGNOSIS AND REPAIR WORK FLOW .........3
Work Flow .................................................................3
FUNCTION DIAGNOSIS ...............................5
REFRIGERATION SYSTEM ...............................5
System Diagram ........................................................5
System Description ...................................................5
Component Parts Location ........................................6
Component Description .............................................7
SYMPTOM DIAGNOSIS ...............................8
REFRIGERATION SYSTEM SYMPTOMS ..........8
Trouble Diagnosis For Unusual Pressure .................8
Symptom Table .........................................................8
COMPRESSOR SYSTEM SYMPTOMS .............11
Symptom Table .......................................................11
PRECAUTION ..............................................12
PRECAUTIONS ..................................................12
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
12
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect ...................................
12
Precaution for Procedure without Cowl Top Cover ....13
Precautions For Xenon Headlamp Service .............13
Working with HFC-134a (R-134a) ...........................13
General Refrigerant Precaution ..............................13
Refrigerant Connection ...........................................14
Service Equipment ..................................................16
COMPRESSOR ..................................................19
General Precautions ...............................................19
FLUORESCENT LEAK DETECTOR .................20
General Precautions ...............................................20
PREPARATION ...........................................21
PREPARATION .................................................21
Special Service Tool ................................................21
Sealant or/and Lubricant .........................................23
ON-VEHICLE MAINTENANCE ....................24
REFRIGERANT .................................................24
Collection and Charge .............................................24
LUBRICANT ......................................................28
Maintenance of Lubricant Quantity ..........................28
Lubricant Adjusting Procedure for Components
Replacement Except Compressor ...........................
28
Lubricant Adjusting Procedure for Compressor
Replacement ...........................................................
29
REFRIGERATION SYSTEM .............................30
Inspection ................................................................30
Performance Chart ..................................................30
Refrigerant Leakages ..............................................31
FLUORESCENT LEAK DETECTOR ................32
Inspection ................................................................32
ELECTRICAL LEAK DETECTOR ....................33
Inspection ................................................................33
ON-VEHICLE REPAIR .................................36
COMPRESSOR .................................................36
Exploded View .........................................................36
Removal and Installation .........................................36
Inspection ................................................................37
LOW-PRESSURE FLEXIBLE HOSE ................38
Exploded View .........................................................38
Removal and Installation .........................................38
HIGH-PRESSURE FLEXIBLE HOSE ...............40
Exploded View .........................................................40
Removal and Installation .........................................40

DIAGNOSIS AND REPAIR WORK FLOW
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work FlowINFOID:0000000003795801
OVERALL SEQUENCE
*1: Refer to the following.
•HAC-85, "
DTC Index" (WITHOUT 7 INCH DISPLAY)
HAC-212, "
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : DTC Index" [WITH 7 INCH DISPLAY
(WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM)]
HAC-224, "
WITH INTELLIGENT AIR CONDITIONER SYSTEM : DTC Index" [WITH 7 INCH DISPLAY
(WITH INTELLIGENT AIR CONDITIONER SYSTEM)]
*2: Refer to the following.
HAC-87, "
Diagnosis Chart By Symptom" (WITHOUT 7 INCH DISPLAY)
HAC-226, "
Diagnosis Chart By Symptom" (WITH 7 INCH DISPLAY)
DETAILED FLOW
1.OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the conditions and environment under
which the malfunction occurred.
>> GO TO 2.
JSIIA0943GB

HA-4
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORK FLOW
2.VERIFY SYMPTOM
Verify the symptom with operational check based on the information obtained from the customer. Refer to the
following.
HAC-8, "
Description & Inspection" (WITHOUT 7 INCH DISPLAY)
HAC-108, "
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : Description & Inspection" [WITH 7
INCH DISPLAY (WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM)]
HAC-112, "
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Description & Inspection" [WITH 7 INCH
DISPLAY (WITH INTELLIGENT AIR CONDITIONER SYSTEM)]
>> GO TO 3.
3.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC. Refer to the following.
HAC-85, "
DTC Index" (WITHOUT 7 INCH DISPLAY)
HAC-212, "
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : DTC Index" [WITH 7 INCH DISPLAY
(WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM)]
HAC-224, "
WITH INTELLIGENT AIR CONDITIONER SYSTEM : DTC Index" [WITH 7 INCH DISPLAY
(WITH INTELLIGENT AIR CONDITIONER SYSTEM)]
Are self
-diagnosis results normal?
YES >> GO TO 4.
NO >> GO TO 5.
4.NARROW DOWN THE MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS
Perform symptom diagnosis and narrow down the malfunctioning parts. Refer to the following.
HAC-87, "
Diagnosis Chart By Symptom" (WITHOUT 7 INCH DISPLAY)
HAC-226, "
Diagnosis Chart By Symptom" (WITH 7 INCH DISPLAY)
>> GO TO 5.
5.REPAIR OR REPLACE
Repair or replace malfunctioning parts.
NOTE:
If DTC is displayed, erase DTC after repairing or replacing malfunctioning parts.
>> GO TO 6.
6.FINAL CHECK
Check that the A/C system operates normally.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 3.

HA-10
< SYMPTOM DIAGNOSIS >
REFRIGERATION SYSTEM SYMPTOMS
Low-pressure side sometimes be-
comes negative. Air conditioning system
does not function and does
not cyclically cool the com-
partment air.
 The system constantly
functions for a period of
time after compressor is
stopped and restarted.Refrigerant does not discharge
cyclically.
↓
Moisture is frozen at expansion
valve outlet and inlet.
↓
Water is mixed with refrigerant. Drain water from refrigerant
or replace refrigerant.
 Replace liquid tank.
Low-pressure side becomes nega-
tive.
Liquid tank or front/rear side
of expansion valve’s pipe is
frosted or wet with dew.High-pressure side is closed
and refrigerant does not flow.
↓
Expansion valve or liquid tank
is frosted.Do not use the system until the
frost has melted. Start it again to
check whether or not the mal-
function is caused by water or
foreign materials.
 Cooling is initially okay if wa-
ter is the cause. Then the wa-
ter freezes, which causes a
blockage. Drain water from
refrigerant or replace refriger-
ant.
 If due to foreign materials, re-
move expansion valve and
the particles with dry com-
pressed air (not shop air.)
 Replace expansion valve if
either of the above methods
cannot correct the malfunc-
tion.
 Replace liquid tank.
 Check lubricant for contami-
nation. Gauge indication Refrigerant cycle Probable cause Corrective action
AC354A
AC362A

COMPRESSOR SYSTEM SYMPTOMS
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COMPRESSOR SYSTEM SYMPTOMS
Symptom TableINFOID:0000000003795808
Follow the next table and perform trouble diagnosis if there is a compressor unit malfunction (internal noise,
insufficient cooling).
*1: First conduct inspection according to trouble diagnosis for each malfunction. Refer to HAC-88, "
Inspection
procedure".
*2: Applicable to variable capacity compressor only.
Symptom Inspection method Check list Result Action
Noise from compressor unit
When A/C is ON.
(rattling or rolling sound)Cooker system in-
ternal pressureCheck with manifold gaugeBoth high- and low-
pressure sides are
high.
*2
Recharge with proper
amount of refrigerant.
High/low-pressures
hunt.
*2Replace compressor
only.
Check compressor
oil condition.Sample compressor oil and
judge.
Refer to the criteria
shown in compressor
lubricant.Diagnostic result 1:
Replace compressor
only.
Diagnostic result 2:
Replace compressor
and liquid tank. Insufficient cooling
*1
Compressor bodyCheck rotation of compressor.
If sized or stuck, sample com-
pressor oil and judge.
Cooler system inter-
nal pressureCheck with a manifold gauge.
Sample compressor oil and
judge if the difference between
high-pressure and low-pres-
sure is small or if they are al-
most the same.
Outlet air temperature rises
temporarily while driving.
*2—— —Replace compressor
only.
JSIIA0927GB

PRECAUTIONS
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Precaution for Procedure without Cowl Top CoverINFOID:0000000003795884
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions For Xenon Headlamp ServiceINFOID:0000000003795886
WARNING:
Comply with the following warnings to prevent any serious accident.
 Disconnect the battery cable (negative terminal) or the power supply fuse before installing, remov-
ing, or touching the xenon headlamp (bulb included). The xenon headlamp contains high-voltage
generated parts.
 Never work with wet hands.
 Check the xenon headlamp ON-OFF status after assembling it to the vehicle. Never turn the xenon
headlamp ON in other conditions. Connect the power supply to the vehicle-side connector.
(Turning it ON outside the lamp case may cause fire or visual impairments.)
 Never touch the bulb glass immediately after turning it OFF. It is extremely hot.
CAUTION:
Comply with the following cautions to prevent any error and malfunction.
 Install the xenon bulb securely. (Insufficient bulb socket installation may melt the bulb, the connec-
tor, the housing, etc. by high-voltage leakage or corona discharge.)
 Never perform HID circuit inspection with a tester.
 Never touch the xenon bulb glass with hands. Never put oil and grease on it.
 Dispose of the used xenon bulb after packing it in thick vinyl without breaking it.
 Never wipe out dirt and contamination with organic solvent (thinner, gasoline, etc.).
Working with HFC-134a (R-134a)INFOID:0000000003795887
CAUTION:
 CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. These refrigerants
must never be mixed, even in the smallest amounts. Compressor malfunction is likely occur if the
refrigerants are mixed.
 Use only specified lubricant for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) compo-
nents. Compressor malfunction is likely to occur if lubricant other than that specified is used.
 The specified HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The fol-
lowing handling precautions must be observed:
- Cap (seal) immediately the component to minimize the entry of moisture from the atmosphere when
removing refrigerant components from a vehicle.
- Never remove the caps (unseal) until just before connecting the components when installing refrig-
erant components to a vehicle. Connect all refrigerant loop components as quickly as possible to
minimize the entry of moisture into system.
- Use only the specified lubricant from a sealed container. Reseal immediately containers of lubricant.
Lubricant becomes moisture saturated and should not be used without proper sealing.
- Never allow lubricant (NISSAN A/C System Oil Type S) to come in contact with styrene foam parts.
Damage may result.
General Refrigerant PrecautionINFOID:0000000003795888
WARNING:
 Never breath A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refrigerant.
PIIB3706J