1995 NISSAN ALMERA N15 Motor oil

TROUBLEDIAGNOSES
Preliminary Check
PRELIMINARY CHECK1

Ale
does notblow coldair.
DOESAIRFLOW FROM VENTS?
Condition
• Engine running atoperating tem-
perature .
• Ignition switch,AICswitch, and
fan switch areON.
• Mode control knobisin VENT
mode andtemperature control
knob isinfull cold position.
Yes IS
BLOWER MOTOROPERATING
NORMALLY?
Yes
CHECKBLOWER
MOTOR OPERATION.
Go toDiagnostic Pro-
cedure 1.(HA-50)
CHECK COMPRESSOR BELTTEN-
SION. Refer to"Checking DriveBelts" in
MA section.
CHECK REFRIGERANT.
Connect manifold gaugethen
check system pressure.
Refer toPerformance Chart.(HA-

26)

NG CHECK
THERMO CONTROL AMP.
OPERATION.
Refer toElectrical Components
Inspection. (HA-63)
CHECK
FOREVAPORATOR COIL
FREEZE UP.
Remove intakeunit.Check ifevap-
orator freezes.
NG OK
(Freeze up.) (Doesnot
freeze up.)
CHECK VENTILATOR
DUCT FORAIR
LEAKS.
OK
Go toPerformance
Test Diagnoses. (HA-

24)
NG
CHECK
REFRIGERATION CYCLE
PRESSURE WITHMANIFOLD
GAUGE CONNECTED.
Refer toPerformance Chart.(HA-
26) OK
CHECK
COMPRESSOR OPERA-
TION.
OK
OK NG
Adjust orreplace
compressor belt.
Refer toMA section
("ENGINE
MAINTENANCE").
CHECKFORREFRIG-
ERANT LEAKS CHECK
WATER COCKOPERA-
TION.
Warm upengine beforechecking.
Refer toHA-64.
NG

Adjust orreplace watercock.
OK
Go toDiagnostic Procedure3.
(HA-54) CHECK
TEMPERATURE CONTROL
CABLE.
Refer toControl Linkage Adjust-
ment. (HA-64) NG
Adjust temperature controlcable.
OK
VISUALLY INSPECTAIRMIX
DOOR.
Access byremoving instrument
panel. NG
Replace airmix door.
OK
CHECK THERMO CONTROL AMP.
OPERATION. Refer toElectrical Components
Inspection. (HA-63)
HA-20

TROUBLEDIAGNOSES
Performance TestDiagnoses (Cont'd)
@

Malfunctioning blowermotorfan
Loose fan!lmproper contactoffan
and case!Deformed fan Malfunctioning
electricalcircuit
Discontinued wiringorcomponent
circuits orpoor connection!
Malfunctioning resistor,amplifier,
etc.! Burned outfuse orlow bat-
tery voltage Malfunctioning
blowermotor
internal circuit
Magnet clutchdoesnotengage.
CHECK MAGNET CLUTCH
(coil circuit, disc-to-pulley clear-
ance). Magnet
clutchslipping
Beltslipping
CHECK COMPRESSOR BELTAND
BELT TENSION.
CHECK ELECTRICAL CIRCUIT
(wiring, components circuit).
CHECK ACTIVATION OFSAFETY!
PROTECTION DEVICES(suchas
pressure switch,etc.). Malfunctioning
internalpartsof
clutch, compressor
Foreign particles onclutch fric-
tional surface orexcessive disc
clearance
Malfunctioning electricalcircuit
(poor connection, lowbattery
voltage, etc.)

HA-25
•

REMOVALANDINSTALLATION
Removal
1. Remove batterynegative terminal.
2. Remove airduct.
3. Disconnect clutchcontrol cable.(Except forCD20 engine
models)
Remove clutchoperating cylinderandclutch operating cyl-
inder bracket fromtransaxle. (CD20engine models)
4. Disconnect back-uplampswitch, neutralposition switch,
speedometer sensorandground harness connectors.
5. Remove startermotorfromtransaxle.
6. Remove shiftcontrol rodand support rodfrom transaxle.
7. Drain gearoilfrom transaxle.
8. Remove driveshafts. RefertoFA section ("Removal",
"FRONT AXLE-Drive Shaft").
9. Jack uptransaxle togetherwithengine slightly andinsert
wooden blockbetween centermember andengine oilpan.

CAUTION:
Do not place jackunder oilpan drain plug.

10. Remove rearandLHmounts supporting transaxlewithjack.
11. Remove boltssecuring transaxle.
12. Lower transaxle.

MT-7
•