radiator cap MITSUBISHI ECLIPSE 1991 Service Manual

LUBRICATION AND MAINTENANCE - Maintenance Service
L-4GoodOOA0051C9FW1014K512(9) Supply 4 liters (8.5 pints) of specified ATF into case
through dipstick hole. [Total quantity of ATF required is
6.1 liters (12.9 pints).
Actually however, approx. 4.5 liters (9.5 pints) of fluid
can be replaced because rest of fluid remains in torque
converter.]Specified fluid: MOPAR ATF PLUS (Automatic
Transmission Fluid Type 7176) or
Dia ATF SP or Equivalent
(10)Start engine and allow to idle for at least two minutes.
Then, with parking brake on, move selector lever
momentarily to each position, ending in “N” Neutral
position.
(1 l)Add sufficient ATF to bring fluid level to lower mark.
Recheck fluid level after transaxle is at normal operating
temperature.
Fluid level should be between upper and lower marks of“HOT” range. Insert dipstick fully to prevent dirt from
entering transaxle.
11 .ENGINE COOLANT (Change)NOOSBEAcCheck the cooling system parts, such as radiator, heater,
and oil cooler hoses, thermostat and connections for
leakage and damage.
CHANGE COOLANT
1. Remove the radiator cap.
2. Loosen the drain plug to drain the coolant.
3. Drain the coolant from the reserve tank.
4. After draining the coolant, tighten the drain plug
securely.
5.Supply the coolant into the radiator until it is filled up to
its filler neck.
6. Supply the coolant into the reserve tank.
7. After warming the engine until the thermostat opens,
remove the radiator cap and check the coolant level.
8.Supply the coolant into the radiator until it is filled up to
its filler neck, and install the
.radiator, cap securely.
9.Fill the reserve tank with coolant up to the “FULL” line.12DISC BRAKE PADS (Inspect for wear)
NOOSBFA~Check for fluid contamination and wear. Replace complete
set of pads if defective.
Caution
The pads for the right and left wheels should be
replaced at the same time. Never “split” or intermix
brake pad sets.
All four pads must be replace as a complete set.
Thickness of lining (A)
Limit
:2.0 mm (.08 in.)

7-l
COOLING
CONTENTS
ENGINE COOLANT TEMPERATURE GAUGEUNIT,
ENGINE COOLANT TEMPERATURE
SENSOR AND ENGINE COOLANT
TEMPERATURE SWITCH................................34
RADIATOR.......................................................12
RADIATORFANMOTOR ASSEMBLY..........15
SERVICE ADJUSTMENT PROCEDURES.......8
Alternatormater Pump Drive Belt Tension
Adjustment
....................................................9Alternator/Water Pump Drive Belt Tension
Inspection..
....................................................8Cap Pressure Test
.......................................8Engine Coolant Concentration Test
.............8
EngineCoolantLeakCheck........................8Engine Coolant Replacement
.......................8
SPECIFICATIONS.............................................2
GeneralSpecifications..................................2
Lubricant.......................................................4
Sealant..........................................................4Service Specifications
...................................2Torque Specifications
...................................3THERMOSTAT
.................................................15
TROUBLESHOOTING......................................5
Noriseintemperature................................5
Overheat.......................................................5
WATER HOSE AND WATER PIPE
<1.8L Engine>................................................25
WATER HOSE AND WATER PIPE
<2.0LDOHCEngine(Non-Turbo)>.............28
WATER HOSE AND WATER PIPE
<2.0LDOHCEngine(Turbo)>....................31
WATERPUMP<1.8LEngine>.....................17
WATER PUMP <2.0L DOHC Engine>.........21

7-2COOLING - Specifications
SPECIFICATIONS
GENERAL SPECIFICATIONSIcNQ7cA- I
ItemsCooling method
Radiator
TypeRadiator fan motor
TypeWater pump
Type
Thermostat
TypeIdentification mark
Drive belt
TypeEngine coolant temperature gauge unit
WeEngine coolant temperature sensor (Engine control)
TypeEngine coolant temperature switch (Air conditioner)
WeSpecifications
Water-cooled, pressurized, forced circulation
with electrical fan
Pressurized corrugated fin type
Direct current ferrite type
Impeller of centrifugal type
Wax pellet type with jiggle valve
88 (Stamped on flange)
V-ribbed belt
Thermistor type
Thermistor type
Thermistor type
SERVICE SPECIFICATIONSN07CB.-
Items
Standard valueRange of coolant antifreeze concentration
%
ThermostatValve opening temperature of thermostat
“C (“F)Full-opening temperature of thermostat
“C (“F)Opening pressure of cap high pressure valve
kPa (psi)
Therm0 sensor (on radiator)
Operating temperature
OFF
+ ON“C (“F)ON
--P OFF“C (“F)Engine coolant temperature gauge unit
ResistanceAt
70°C (158°F) QEngine coolant temperature sensor (Engine control)
ResistanceAt
20°C (68°F) kQAt
80°C (176°F) QEngine coolant temperature
switch (Air conditioner)
ON -+ OFF operating temperature
“C (“F)Limit
Opening pressure cap high pressure valve
kPa (psi)
Specifications
30-6088 (190)
100 (212) or more
75-105 (11-15)
82-88 (180-190)
78 (172) or less
104f 13.5
2.45
I!I 0.24
296
+ 32
112-l 18 (234-244)
65 (9.2)

COOLING - Troubleshootina7-5
TRO,UBLESHOOTlNG
Symptom
OverheatProbable causeInsufficient engine coolant
Too high an anti-freeze concentrationRemedy
Replenish
Correct anti-freeze
concentration
Loose or broken drive belt
Replace
Inoperative electric cooling fan
Faulty thermosensor
Replace
Faulty electrical motorReplace
Faulty radiator fan relayReplace
Damaged or blocked (insufficiently ventilated) radiator finsCorrect
Water leaks
Damaged radiator core joint
Replace
Corroded or cracked hosesReplace
(radiator hose, heater hose, etc.)
Loose bolt or leaking gasket in water outlet fitting
(thermostat)
Loose water pump mounting bolt or leaking gasket
Faulty cap valve or setting of spring
Loose intake manifold bolts or leaking from gasket
Cracked intake manifold
Faulty automatic transaxle oil cooler operation
Blocked or collapsed hose and pipe
Loose hose and pipe connection
Faulty thermostat operation
Faulty water pump operation
Water passage clogged with slime or rust deposit or
foreign substanceCorrect or replace
Correct or replace
Replace
Retorque bolts or replace
gasket
Replace
Replace
Correct
Replace
Replace
Clean
Jo rise in temperatureFaulty thermostatReplace

7-8COOLING - Service Adjustment Procedures
04DooE
SERVICE ADJUSTMENT PROCEDURESENGINE COOLANT LEAK CHECK
NO7FAAE1. Loosen cap.
2.Confirm that the engine coolant level is up to the filler neck.3. Install a adapter to the water outlet fitting and apply
160
kPa (23 psi) pressure. Hold pressure for tvvo minutes, whilechecking for leakage from the radiator, hose or connec-
tionsCaution
Be sure to completely clean away moisture from the
places checked.When the tester
is removed, be careful not to spill anyengine coolant from
it.
Be careful, when installing and removing the tester andwhen testing, not
to deform the water outlet fitting.
4. If there is leakage, repair or replace the appropriate part.
CAP PRESSURE TESTNO’IFBAG
1. Use a special tool to attach the cap to the tester.
2.Increase the pressure until the indicator of the gauge stops
moving.Limit:
65 kPa (9.2 psi)Standard value:
75-105 kPa (11-15 psi)
3.Replace the cap if the reading does not remain at or abovethe limit.
NOTEBe sure that the cap is clean before testing, since rust or
other foreign material on the cap seal will cause an
improper indication.
ENGINE COOLANT REPLACEMENTRefer to GROUP O-Cooling System.NO’IFCACENGINE COOLANT CONCENTRATION
TESTmAGRefer to GROUP O-Selection of Engine Coolant.
ALTERNATOR/WATER PUMP DRIVE BELT TEN-
SION INSPECTION
NO7FEAGCaution
If the belt slips or squeaks, check the belt tension and also
check the belt for wear, damage and breakage and checkthe
pulleys for damage.

7-12COOLING - Radiator
RADIATORPre-removal Operation
@Draining of the Engine Coolant(Refer to GROUP O-Maintenance(Refer to GROUP II-Air Cleaner.)
Service.)
I I
@Removal of Air Cleaner BracketORefilling of the Engine Coolant(Refer to GROUP 11 -Air Cleaner.)(Refer to GROUP O-MaintenanceService.)*Checking Automatic Transaxle FluidLevel and Refilling If Necessary
9-14 Nm
_
4-6 Nm3-4 ft.lbs.Removal steps
1 Drain plug2. Cap3. Overflow tube.
4-9 Nm3-4 ft.lbs.
4. Water level switch connector
5. Reserve tank~~ l +6. Radiator upper hose
+e e+ 7. Radiator lower hose
*I)8. Automatic transaxle oil cooler hoses9. Therm0 sensor connectorIO. Radiator fan motor connector
11. Condenser fan motor connector12. Upper insulator
04AOOS7
07A0049
13. Radiator assembly14. Condenser fan motor assembly15. Radiator fan motor assembly
16. Thermosensor
17. Lower insulator
NOTE(1) Reverse the removal procedures to reinstall.(2) +e : Refer to “Service Points of Removal”.(3) l + : Refer to “Service Points of Installation”

COOLING - Radiator Fan Motor AssemblvIThermostat7-15
RADIATOR FAN MOTOR ASSEMBLYDISASSEMBLY AND REASSEMBLY
04AOO92
NOTTA-
Disassembly steps
1. Fan2. Radiator fan motor
3. Shroud
NOTEReverse the disassembly procedures to reassemble.
THERMOSTATREMOVAL AND INSTALLATION
N07G6-
< 1.8LDOHC
P17-20 Nm
12-14 ft.lbs.
112-14 ftlbs. 1
44Removal steps
m5al51. Cap+e l 42. Connection for radiator upper hose
663. Connection for overflow tube
;. ra;t;er;utlet fitting
l + 6: Thermostat
NOTE
2(I) Reverse the removal procedures to reinstall.(2) ~~ : Refer to “Service Points of Removal”.(3) l 4 : Refer to “Service Points of Installation”.
04Aoo91(4) 19 : Non-reusable parts
Mating marks
Radiator hose
04A009ESERVICE POINTS OF REMOVAL
NO7GCFU
2. DISCONNECTION OF RADIATOR UPPER HOSEAfter making mating marks on the radiator hose and the
hose clamp, disconnect the radiator hose.

HEATERS AND AIR CONDITIONING - condenser and Condenser Fan Motor24i45CONDENSER AND CONDENSER FAN MOTOR
_--REMOVAL AND INSTALLATIONPre-removal Operation of
Condenserl Discharge of Refrigerant(Refer to P.24-19.)
NZITA-Post-installation Operatior
of Condenser
l charging of Refrigerant(Refer to P.24-21.)*Checking for Gas Leakage(Refer to P.24-15.)@Performance Test(Refer to P.24-16.)Removal of condenser
1. Condenser fan motor connecter
2. Condenser fan motor assembly
3. Radiator fan motor connecter<2.0L.Turbo>
4.
Therm0 sensor connecter <2.0L.Turbo>
4*5. Radiator fan motor assembly<2.0L.Turbo>
6. Upper insulator+e ~~ 7. Discharge pipe connectionl * l +8. Liquid pipe connection
4*9. Condenser
Removal of condenser fan motor
1, Condenser fan motor connecter
2. Condenser fan motor
assembly
NOTE(1) Reverse the removal procedures to reinstall.
(2) +e : Refer to “Service Points of Removal”.(3) l 4 : Refer to “Service Points of Installation”
SERVICE POINTS OF REMOVAL
N24TBAF5. REMOVAL OF RADIATOR FAN MOTOR ASSEMBLY
To remove the radiator fan motor assembly,
)~ll it out,
keeping the radiator lifted.
7. DISCONNECTION OF DISCHARGE PIPE/8. LIQUID
PIPEIf the hoses are disconnected, cap the hoses with a blank
plug to prevent entry of dust, dirt, and water.
9. REMOVAL OF CONDENSER
Move the radiator toward the engine, and then remove the
condenser upward.