oil temperature NISSAN PRIMERA 1999 Electronic Workshop Manual

Refrigeration Cycle
REFRIGERANT FLOW
The refrigerant flow is in the standard pattern. Refrigerant flows through the compressor, condenser, liquid
tank, evaporator, and back to the compressor.
The refrigerant evaporation through the evaporator coil is controlled by an externally equalized expansion
valve, located inside the evaporator case.
FREEZE PROTECTION
Variable displacement (CSV613)
Under normal operating conditions, when the A/C is switched on, the compressor runs continuously, and the
evaporator pressure, therefore temperature, is controlled by the CSV613 variable displacement compressor
to prevent freeze up.
Vane rotary (CR-14)
The compressor cycles on and off to maintain the evaporator temperature within a specified range. When
the evaporator coil temperature falls below a specified point, the thermo control amplifier interrupts the
compressor operation. When the evaporator coil temperature rises above the specification, the thermo con-
trol amplifier allows compressor operation.
REFRIGERANT SYSTEM PROTECTION
Dual-pressure switch (System with CR-14 compressor)
The refrigerant system is protected against excessively high or low pressure by the dual-pressure switch,
located on the liquid tank. If the system pressure rises above, or falls below the specifications, the dual-
pressure switch opens to interrupt the compressor operation.
Pressure sensor (System with CSV613 compressor)
The pressure sensor is located on the liquid tank. It converts the system pressure into a voltage value witch
is then input into ECM.
If the system pressure rises above, or falls below the specifications, ECM interrupt the compressor opera-
tion.
Fusible plug
Open at temperatures above 105ÉC (221ÉF), thereby discharging refrigerant to the atmosphere. If this plug
is melted and opened, check the refrigerant line and replace liquid tank.
Pressure relief valve (CSV613 compressor)
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compres-
sor. When the pressure of refrigerant in the system increases to an abnormal level [more than 3,727 kPa
(38 kg/cm
2, 540 psi)], the release port on the pressure relief valve automatically opens and releases refrig-
erant into the atmosphere.
DESCRIPTION
HA-12

PRELIMINARY CHECK 2
A/C does not blow cold air.
DOES AIR FLOW FROM
VENTS?
Condition
lEngine running at operating
temperature.
lIgnition switch, A/C switch, and
fan switch are ON.
lMode control knob is in VENT
mode and temperature control
knob is in full cold position.
Ye s
ENo
IS BLOWER MOTOR OPERAT-
ING NORMALLY?
Ye s N o
CHECK
BLOWER
MOTOR
OPERATION.
Go toDiag-
nostic Proce-
dure 1
(HA-52).
CHECK COMPRESSOR BELT
TENSION.
Refer to ªChecking Drive Beltsº in
MA section.
NG OK
FNG
CHECK COMPRESSOR OPERA-
TION.
OKCHECK FOR EVAPORATOR
COIL FREEZE UP.
Remove intake unit. Check if
evaporator freezes.
NG
(Freezes up.)OK
(Does not
freeze up.)
Adjust or
replace com-
pressor belt.
Refer to MA
section
(ªENGINE
MAINTE-
NANCEº).
CHECK REFRIGERATION
CYCLE PRESSURE WITH
RECOVERY/RECYCLING
EQUIPMENT CONNECTED.
Refer to Performance Chart.
NG OKCHECK VEN-
TILATOR
DUCT FOR
AIR LEAKS.
CHECK AMOUNT OF REFRIGER-
ANT.
Check amount of refrigerant using
refrigerant recovery & recharging
equipment.
OK NGGo toPerfor-
mance Test
Diagnoses.
CHECK THERMO CONTROL
AMP. AND A/C RELAY OPERA-
TION.
Go to Diagnos-
tic Procedure
10 (HA-70).CHECK FOR
REFRIGER-
ANT LEAKS.CHECK WATER COCK OPERA-
TION.
Warm up engine before checking.
OK
ENG
Adjust or replace water cock.
CHECK VENTILATOR DUCT FOR
AIR LEAKS.FOK
CHECK EVAPORATOR OUTLET
AIR TEMPERATURE.
Refer to Performance Chart.
NG
CHECK AIR MIX DOOR OPERA-
TION.
(Refer to HA-90.)
H
HH
HHH
HHH
HHH
H
H
TROUBLE DIAGNOSESAUTO
Preliminary Check (Cont'd)
HA-31

Maintenance of Lubricant Quantity in
Compressor
The lubricant used to lubricate the compressor circulates through
the system with the refrigerant. Add lubricant to compressor
when replacing any component or after a large gas leakage
occurred. It is important to maintain the specified amount.
If lubricant quantity is not maintained properly, the following mal-
functions may result:
lLack of lubricant: May lead to a seized compressor
lExcessive lubricant: Inadequate cooling (thermal exchange
interference)
LUBRICANT
CR-14
Name: Nissan A/C System Oil Type R
Part number: KLH00-PAGR0
CSV613
Name: Nissan A/C System Oil Type S
Part number: KLH00-PAGS0
CHECKING AND ADJUSTING
Adjust the lubricant quantity according to the flowchart shown
below.START
Can lubricant return operation be per-
formed?
lA/C system works properly.
lThere is no evidence of a large amount
of lubricant leakage.
No
EYe s
Perform lubricant return operation, proceeding as follows:
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Start engine, and set the following conditions:
lTest condition
Engine speed: Idling to 1,200 rpm
A/C or AUTO switch: ON
Blower speed: Max. position
Temp. control: Optional [Set so that intake air temperature
is 25 to 30ÉC (77 to 86ÉF).]
2. Next item is for CSV613 compressor. Connect the manifold
gauge, and check that the high pressure side pressure is588
kPa (5.9 bar, 6 kg/cm
2, 85 psi) or higher.
If less than the reference level, attach a cover to the front face
of the condenser to raise the pressure.
3. Perform lubricant return operation for about 10 minutes.
4. Stop engine.
CAUTION:
If excessive lubricant leakage is noted, do not perform the lubri-
cant return operation.
Should the compressor be replaced?
No Yes
F
pA
(Go to next page.)
Is there any part to be replaced?
(Evaporator, condenser, liquid tank or in
case there is evidence of a large amount
of lubricant leakage.)
No
EYe s
After replacing any of the following major components, add the correct
amount of lubricant to the system.
Amount of lubricant to be added
*1: If compressor is replaced, addition of lubricant is included in the
flow chart.
*2: If refrigerant leak is small, no addition of lubricant is needed.
Carry out the A/C performance test.F
Part replacedLubricant to be added to system
Remarks
Amount of lubricant
m(Imp fl oz)
Evaporator 75 (2.6) Ð
Condenser 75 (2.6) Ð
Liquid tank 5 (0.2)Add if compressor is
not replaced. *1
In case of refrigerant
leak30 (1.1) Large leak
Ð Small leak*2
H
H
H
H
H
SERVICE PROCEDURESAUTO
HA-102

A
AAC/V - Wiring diagram....EC-QG-276, EC-SR-265
ABS (anti-lock brake system).........................BR-50
A/C control linkage adjustment (manual
A/C) .............................................................HA-82
A/C control operation (auto A/C) ....................HA-19
A/C diagnostic work flow (auto A/C) ..............HA-26
A/C performance chart ...................................HA-35
A/C performance test diagnoses....................HA-33
A/C relay.........................................................HA-78
A/C service data specification ......................HA-118
A/C switch ......................................................HA-78
A/C symptom chart (auto A/C) .......................HA-28
A/C trouble diagnoses (auto A/C) ..................HA-26
Accelerator control system ...............................FE-3
Accelerator position sensor ...................EC-CD-108
Accelerator position switch ....................EC-CD-108
Accelerator wire adjustment .............................FE-4
A/CCUT - Wiring diagram ......................EC-CD-127
Air bag disposal..............................................RS-27
Air bag precautions ...........................................GI-3
Air bleeding for brake system ..........................BR-8
Air cleaner filter replacement ............MA-23, 34, 44
Air conditioner cut
control .....EC-QG-24, EC-SR-26, EC-CD-20, 126
Air flow meter - See Mass air flow
sensor ............................EC-QG-110, EC-SR-120
Air mix. door motor.........................................HA-92
Alternator ..................................................EL-53, 56
Ambient sensor ..............................................HA-86
Antenna .........................................................EL-229
Anti-lock brake system - See ABS .................BR-50
APS - Wiring diagram ............................EC-CD-109
A/T - Wiring diagram - AT - FTS .....................AT-56
A/T - Wiring diagram - AT - MAIN ...................AT-45
A/T - Wiring diagram - AT - PNP/SW..............AT-50
A/T - Wiring diagram - AT - VSS A/T ..............AT-64
A/T diagnosis communication line .........EC-SR-295
A/T fluid temperature sensor...........................AT-54
A/T trouble diagnoses ...............................AT-29, 30
A/T Wiring diagram - AT - ENG SS ................AT-67
A/T Wiring diagram AT - LPSV .......................AT-76
A/T Wiring diagram AT - TCV .........................AT-71
A/T Wiring diagram AT - TPS..........................AT-81
ATDIAG - Wiring diagram ......................EC-SR-296
Audio .............................................................EL-216
AUDIO - Wiring diagram ...............................EL-219
Audio and A/C control removal and
installation - See Instrument panel .............BT-15
Auto air conditioner - Wiring diagram ............HA-42
Automatic amplifier .........................................HA-87
Automatic transaxle number............................GI-44
Automatic transmission fluid
replacement..........................................MA-49, 50
Auxiliary air control (AAC)
valve ..............................EC-QG-274, EC-SR-263BBack door opener - See Back door ............BT-9, 11
Back door trim.................................................BT-30
Back door window ....................................BT-35, 56
Back-up lamp ................................................EL-107
BACK/L - Wiring diagram..............................EL-107
Ball joint front axle ....................................FA-32, 33
Base idle air volume
initialiging ...........................EC-QG-33, EC-SR-46
Basic inspection ....................EC-QG-72, EC-SR-84
Battery .............................................................EL-29
Body alignment ...............................................BT-60
Brake booster .................................................BR-18
Brake control valve (Proportioning
valve)...........................................................BR-11
Brake fluid change ...........................................BR-7
Brake fluid level .............................................MA-51
Brake fluid level and line check .......................BR-7
Brake hydraulic line ..........................................BR-9
Brake inspection ............................................MA-51
Brake lining wear temporary checking ..........MA-51
Brake pedal ....................................................BR-13
Bulb specifications ........................................EL-137
Bumper, front ....................................................BT-5
Bumper, rear .......................................BT-5, 7, 9, 11
BUZZER - Wiring diagram ............................EL-181
C
Camshaft inspection ...............EM-35, 91, 138, 147,
183, 192, 196
Camshaft position sensor
(CMPS) ..........................EC-QG-238, EC-SR-239
Camshaft position sensor (PHASE) ......EC-QG-238
Canister-See EVAP
canister ..............................EC-QG-25, EC-SR-27
CHARGE - Wiring diagram .............................EL-53
Charging system .............................................EL-53
Chassis and body maintenance ....................MA-48
CHIME - Wiring diagram ...............................EL-181
Cigarette lighter.............................................EL-203
Circuit breaker.................................................EL-22
CKPS - Wiring diagram....EC-QG-234, EC-SR-236,
292, EC-CD-115
Clock .............................................................EL-203
Closed throttle position switch ...............EC-SR-271
Clutch cover ....................................................CL-13
Clutch damper ................................................CL-10
Clutch disc ......................................................CL-13
Clutch fluid level.............................................MA-48
Clutch master cylinder ......................................CL-8
Clutch operating cylinder ..................................CL-9
Clutch release mechanism..............................CL-11
CMPS - Wiring diagram ....EC-QG-240, EC-SR-242
Coil spring (rear) .............................................RA-11
Collision diagnosis..........................................RS-57
Combination meter........................................EL-138
ALPHABETICAL INDEX
IDX-2

Combination meter removal and instal-
lation - See Instrument panel ......................BT-15
Combination switch .........................................EL-64
Combustion chamber replacement ..............EM-146
Component location (cool box) ......................HA-39
Compression pressure ..........EM-69, 126, 188, 196
Compressor clutch removal and
installation .................................................HA-111
Compressor mounting ..................................HA-109
Compressor precaution ....................................HA-7
Compressor special service tool ......................HA-7
Connecting rod......EM-55, 171, 176, 186, 193, 200
Connecting rod bearing
clearance....EM-58, 111, 115, 170, 187, 195, 201
Connecting rod bushing clearance ........EM-59, 116
Console box - See Instrument panel ..............BT-15
CONSULT for ABS .........................................BR-69
CONSULT for engine ...........EC-QG-55, EC-SR-68,
EC-CD-27
CONSULT-II general information .....................GI-39
Control sleeve position sensor ................EC-CD-74
Converter housing installation .......................AT-117
COOL/F - Wiring diagram ....................EC-QG-292,
EC-SR-282, EC-CD-89
Coolant replacement .........................MA-19, 29, 40
Cooling circuit (engine) ........................LC-8, 21, 31
Cooling fan control ...........EC-QG-289, EC-SR-279,
EC-CD-20, 87
Cooling fan motor .............EC-QG-299, EC-SR-289
Cooling fan relay ..............EC-QG-299, EC-SR-289,
EC-CD-96
Crank angle sensor built into distributor
- See Camshaft position sensor .......EC-QG-238,
EC-SR-239
‘‘Crankcase emission control system -
See positive crankcase
ventilation’’ .........................EC-QG-28, EC-SR-30
Crankcase ventilation system - See
Positive crankcase
ventilation ..........................EC-QG-28, EC-SR-30
Crankshaft ........EM-53, 57, 61, 110, 113, 118, 131,
138, 139, 167, 172, 175, 186, 194, 200
Crankshaft position sensor (OBD) .......EC-QG-232,
EC-SR-234, 290
Crankshaft position sensor (POS).........EC-QG-232
Crankshaft position sensor (TDC)..........EC-CD-114
CSPS - Wiring diagram ...........................EC-CD-75
Cylinder block .........................EM-52, 55, 109, 166,
173, 184, 192, 199
Cylinder head ..........EM-31, 86, 140, 178, 188, 196
D
Data link connector for
Consult ..............................EC-QG-29, EC-SR-31
Daytime light system.......................................EL-78
DEF - Wiring diagram ...................................EL-209
Detonation sensor - See Knock
sensor ............................EC-QG-228, EC-SR-230
Diagnosis sensor unit .....................................RS-13Diagnostic trouble code (DTC) for OBD
system ...................................EC-QG-6, EC-SR-6
Diagnostic trouble code (DTC) inspec-
tion priority chart...............EC-QG-80, EC-SR-92,
EC-CD-39
Dimensions ......................................................GI-45
Direct ignition system ..............................EC-QG-32
Door lock .........................................................BT-13
Door mirror ......................................................BT-58
Door trim .........................................................BT-24
Door, front .......................................................BT-13
Door, rear ........................................................BT-13
Drive belt inspection ..........................MA-18, 28, 39
Drive plate runout...................................EM-60, 117
Drive shaft (front) ............................................FA-15
Dropping resistor (A/T) ....................................AT-78
DTC work support .................EC-QG-63, EC-SR-76
DTRL - Wiring diagram ...................................EL-79
E
ECCS relay ............................................EC-CD-140
ECM input/output signal......EC-QG-91, EC-SR-103
ECTS - Wiring diagram ....EC-QG-122, EC-SR-134,
EC-CD-67
EGR control (EGRC) - solenoid valve ...EC-CD-129
EGR control valve..........................EC-QG-252, 311
EGR temperature sensor ......................EC-QG-300
EGR/TS - Wiring diagram .....................EC-QG-302
EGRC - Wiring diagram .........................EC-CD-131
EGRC1 - Wiring diagram ..............EC-QG-248, 309
Electric governer ......................................EC-CD-78
Electric sun roof ............................................EL-230
Electrical diagnoses.........................................GI-24
Electrical ignition system.......EC-QG-23, EC-SR-25
Electrical unit ................................................Foldout
Electronic fuel injection pump ..................EC-CD-24
Engine control circuit
diagram ...........EC-QG-17, EC-SR-19, EC-CD-11
Engine control component parts
location ..............................EC-QG-14, EC-SR-15
Engine control module
(ECM) .....EC-QG-282, EC-SR-277, EC-CD-9, 86
Engine control system diagram and
chart ................EC-QG-18, EC-SR-20, EC-CD-12
Engine coolant temperature sensor
(ECTS) ........EC-QG-120, EC-SR-132, EC-CD-66
Engine fail-safe system .........EC-QG-81, EC-SR-93
Engine oil filter replacement ....................MA-24, 45
Engine oil precautions .......................................GI-6
Engine oil replacement ......................MA-24, 34, 45
Engine removal..............................EM-48, 106, 162
Engine serial number ......................................GI-44
Engine trouble diagnoses ........................EC-CD-33
EVAP canister .......................EC-QG-26, EC-SR-28
EVAP canister purge volume control
solenoid valve ...........EC-QG-26, 262, EC-SR-28
EVAP canister purge volume control
valve ..............................EC-QG-262, EC-SR-250
EVAP vapor lines inspection....................MA-26, 37
ALPHABETICAL INDEX
IDX-3

Oil Pressure CheckNCLC0004WARNING:

Be careful not to burn yourself, as the engine and oil may
be hot.

Put gearshift lever in Neutral “N” position.
1. Check oil level.
2. Remove oil pressure switch.
3. Install pressure gauge.
4. Start engine and warm it up to normal operating temperature.
5. Check oil pressure with engine running under no-load.
Engine speed
rpmApproximate discharge pressure
kPa (bar, kg/cm2, psi)
600More than 98 (0.98, 1.0, 14)
2,000More than 294 (2.94, 3.0, 43)
6,000More than 392 (3.92, 4.0, 57)

If difference is extreme, check oil passage and oil pump
for oil leaks.
6. Install oil pressure switch with sealant.
Oil Pump
REMOVAL AND INSTALLATIONNCLC0005
Always replace oil seal with a new one. Refer to EM sec-
tion (“OIL SEAL REPLACEMENT”).

When installing oil pump, apply engine oil to gears.

Make sure that O-ring is fitted properly.
1. Drain engine oil.
2. Remove drive belts.
3. Remove oil pan. Refer to EM section (“OIL PAN”).
4. Remove oil strainer.
5. Remove front cover. Refer to EM section (“TIMING CHAIN”).
6. Install front cover.
7. Reinstall parts in reverse order of removal.
SEM853F Oil pressure switch
Front
SLC926-A ST25051001
ST25052000
ENGINE LUBRICATION SYSTEMQG
Oil Pressure Check
LC-5

Oil Pressure Check
WARNING:

Be careful not to burn yourself, as the engine and oil may
be hot.

Oil pressure check should be done in“Neutral position”.
1. Check oil level.
2. Remove oil pressure switch.
3. Install pressure gauge.
4. Start engine and warm it up to normal operating temperature.
5. Check oil pressure with engine running under no-load.
Engine speed
rpmApproximate discharge pressure
kPa (bar, kg/cm2, psi)
Idle speedMore than 78 (0.78, 0.8, 11)
3,200314 - 392 (3.14 - 3.92, 3.2 - 4.0, 46 - 57)
If difference is extreme, check oil passage and oil pump for oil
leaks.
6. Install oil pressure switch with sealant.
.Oil pressure
switch
.Oil cooler.NLC045
.SR20DE models
.SLC717A
ENGINE LUBRICATION SYSTEMSR20DE
Oil Pressure Check
LC-16

Oil Pressure Check
WARNING:

Be careful not to burn yourself, as the engine and oil may
be hot.

Oil pressure check should be done in“Neutral”gear posi-
tion.
1. Check oil level.
2. Remove oil pressure switch.
3. Install pressure gauge.
4. Start engine and warm it up to normal operating temperature.
5. Check oil pressure with engine running under no-load.
Engine rpm Approximate discharge pressure
kPa (bar, kg/cm2, psi)
Idle speedMore than 59 (0.59, 0.6, 9)
2,000294 (2.9, 3, 43)
If difference is extreme, check oil passage and oil pump for oil
leaks.
6. Install oil pressure switch with sealant.
Oil Pump
REMOVAL AND INSTALLATION
1. Drain engine coolant and engine oil.
2. Remove upper radiator hose, drive belts, crank pulley, timing
belt covers and timing belt. (Refer to EM section).
3. Remove exhaust front tube, timing belt pulley and rear engine
gusset (bar type), then remove oil pan. (Refer to EM section).
4. Remove crankshaft position sensor (TDC).
5. Remove oil pump assembly with oil strainer.
6. Reinstall any part removed. Refill engine oil and engine cool-
ant.

Apply liquid gasket to oil pump.

Apply liquid gasket to oil pan.

Apply liquid gasket to both ends of oil pan oil seals.

Install oil pan, fitting oil seals in the correct position.
SLC461
Oil filter
Oil pressure switch
SLC926-A ST2051001
ST25052000
SLC462A Rear engine gusset
SLC087B
9.2 - 10.8 N·m
(0.94 - 1.10 kg-m,
81.4 - 95.6 in-lb)Crankshaft
position
sensor
(TDC)
12 - 16 N·m
(1.2 - 1.6 kg-m,
9 - 12 ft-lb)
ENGINE LUBRICATION SYSTEMCD20T
Oil Pressure Check
LC-27

Oil Pressure CheckNCL0011
Engine speed
rpmApproximate discharge pressure
kPa (bar, kg/cm2, psi)
600 More than 98 (0.98, 1.0, 14)
2,000 More than 294 (2.94, 3.0, 43)
6,000 More than 392 (3.92, 4.0, 57)
Oil Pump InspectionNCLC0013Unit: mm (in)
Body to outer gear radial clearance 0.250 - 0.325 (0.0098 - 0.0128)
Inner gear to outer gear tip clearance Below 0.18 (0.0071)
Body to inner gear clearance 0.030 - 0.085 (0.0012 - 0.0033)
Body to outer gear axial clearance 0.030 - 0.090 (0.0012 - 0.0035)
Inner gear to brazed portion of housing clearance 0.045 - 0.091 (0.0018 - 0.0036)
Regulator Valve InspectionNCLC0012Unit: mm (in)
Regulator valve to oil pump cover clearance 0.052 - 0.088 (0.0020 - 0.0035)
ThermostatNCLC0029
Valve opening temperature°C(°F) 82 (180)
Valve lift mm/°C (in/°F)More than 9/95 (0.35/203)
RadiatorNCLC0030
Unit: kPa (bar, kg/cm2, psi)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 - 98 (0.59 - 0.98, 0.6 - 1.0,9-14)
Leakage test pressure157 (1.57, 1.6, 23)
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Oil Pressure Check
LC-39

Oil Pressure Check
Engine speed
rpmApproximate discharge pressure
kPa (bar, kg/cm2, psi)
Idle speed More than 78 (0.78, 0.8, 11)
3,200 314 - 392 (3.14 - 3.92, 3.2 - 4.0, 46 - 57)
Oil Pump Inspection
Unit: mm (in)
Body to outer gear clearance (radial) 0.114 - 0.200 (0.0045 - 0.0079)
Inner gear to outer gear tip clearance Below 0.18 (0.0020 - 0.0071)
Body to inner gear clearance 0.05 - 0.09 (0.0020 - 0.0035)
Body to outer gear clearance (axial) 0.05 - 0.11 (0.0020 - 0.0043)
Inner gear to brazed portion of housing clearance 0.045 - 0.091 (0.0018 - 0.0036)
Regulator Valve Inspection
Unit: mm (in)
Regulator valve to oil pump cover clearance 0.040 - 0.097 (0.0016 - 0.0038)
Thermostat
Valve opening temperature°C(°F) 82 (180)
Valve lift mm/°C (in/°F)More than 9/95 (0.35/203)
Radiator
Unit: kPa (bar, kg/cm2, psi)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 - 98 (0.59 - 0.98, 0.6 - 1.0,9-14)
Leakage test pressure157 (1.57, 1.6, 23)
SERVICE DATA AND SPECIFICATIONS (SDS)SR20DE
Oil Pressure Check
LC-40