sensor MITSUBISHI GALANT 1989 Service Repair Manual

14-4COOLING-Specifications
Items
Exhaust manifold to cylinder head
< 1993 models>
>
Engine hanger to engine bracket
Oxygen sensor
Water inlet pipe installation bolt Transaxle side
Engine block side
< 1993 models>
Engine coolant temperature gauge unit
Engine coolant temperature sensor (Engine control)
Air conditioning engine coolant temperature switch
Engine coolant temperature switch
(Air conditioning or A/T control) Rocker cover installation bolt
Exhaust manifold to turbocharger
Eye bolt (oil pipe)
Air outlet fitting installation bolt
Water pipe
B
Front exhaust pipe to turbocharger
Eye bolt (water pipe)
Water pipe
B clamp
Oil return pipe
Water hose installation bolt


Nater hose to turbocharger
Ixhaust pipe support bracket
Exhaust pipe support bracket to front exhaust pipe Nm ft.lbs.
15-2011-14
25-3018-22
27-3320-23
25-3018-22
12-15 9-11
40-5029-36
43-55
31-40
IO-157-10
12-15 9-11
IO-127-
9
20-4014-29
30-4022-29
IO-148-10
5-

7
4-5
55-65
40-47
14-19IO-14
9-1
4
7-10
40-5029-36
40-6029-43
35-5025-36
IO-127-

9
8-106-

7
12-15 9-11
IO-127-
9
8-106-

7
30-4222-30
30-4022-29
LUBRICANT Ml4CD-
Item
Engine coolant
Specified lubricant
High quality ethylene glycol
antifreeze coolant Quantity
6.5
dm3(6.9 qts.)
SEALANT
M14CE- Items
Specified sealant
Engine coolant temperature sensor (Engine control) 3M
nut locking Part No.4171
or equivalent
Air conditioning engine coolant temperature switch closed type> Engine coolant temperature switch
(Air conditioning or A/T control)
Engine coolant temperature gauge unit 3M
ATD Part No.8660
or equivalent
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COOLING - Special TooVTroubleshooting
SPECIAL TOOL
1 Tool
Number
Name1 Use
MIT21 0863Radiator cap test Radiator cap test
TROUBLESHOOTINGM14EAAI
Symptom
Overheat Probable cause
Insufficient engine coolant
Too high an anti-freeze concentration Remedy
Replenish
Correct anti-freeze
concentration
Loose or broken drive belt
Replace Inoperative
electric cooling fan
Faulty thermosensor Replace
Faulty electrical motor
Replace
Faulty radiator fan relayReplace
Damaged or blocked (insufficiently ventilated) radiator fins Correct
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 radiator 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 substance Correct or replace
Correct or replace
Replace
Retorque bolts or replace
gasket
Replace
Replace
Correct
Replace
Replace
Clean
Jo rise in temperature Faulty thermostatReplace
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14-6COOLING - Troubleshooting
CIRCUIT DIAGRAM AWD-M/T)>
IGNJvJc
c
c
c
IONH(IG2)W&FUj$?LE
C-24
3
CONDENSER
FAN MOTOR
5r; 5(GY)(GY)
,,43AExAy4x3,“4 s
[“1“1 "2RADIATOR
RADIATORFAN MOTOR +FAN MOTOR1 RELAYCHI) gRELAYCLO)J5Ed
I ITHERM0 SENSOR
ON:85’C
(185’F)OFF38 C(172’Fl
A-29
*2-E
40---4
g 51
Pu
411
d
i
FAN MOTOR
2CONDENSER
FAN MOTOR
RELAY
(HI)
&WE;""
A-15
a3 ON:1800kPa
e56Ds I )
OFF:1500kPe
(233DSl)
KXBS-AC-HOEIf-NY
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COOLING -Troubleshootina14-7
L

ICSk-iNIq
ci
'ION:H(IG2)
W&FUS$BLE
AUTOCOMPRESSOR
CONTROL UNIT
A-29
'RADIATORFAN MOTOR43 RELAYCHI)cu
A-29
RESISTOR
> 'Mf AToR
m ON:SSC
OFF -p(165'F)
OFF:?8’C(172’F)$5m6‘5I%
66.
B-22-4 m
?
"A
OFF-ON:
102’
C0 KX35-AC-H0612-NY
I(GY) ;
2 "1"1
;-'SX!D%% BRELAY(L0) 0? -
N
d
0-
A-24
2
f
A-15
I
/OFFGE3
1
0N:lBOOkPa(256DS
II 0FF:lSOOkPs
2
(213PSl)
OPERATION l When the engine coolant temperature reaches approximately
85°C (185°F) in the ignition switch
“ON” position, the
therm0 sensor is turned on
to flow electricity through the radiator fan motor relay (coil) and the
therm0 sensor to the ground.
The radiator fan motor relay contact will be
closed.
l Then, electricity will flow through the radiator fan motor and the radiator fan motor relay
(contact) to the ground to rotate the radiator fan
motor.
NOTE
For models equipped with the air conditioning,
refer to GROUP
55-Troubleshooting for in-
formation concerning the operation of the con-
denser fan.
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COOLING - Radiator
RADIATOR
REMOVAL AND INSTALLATION
14-9
M14OA-
Pre-removal and Post-installation
@Draining and Supplying of the En-gine Coolant
(Refer toGROUP 00-Maintenancekervice.)
9-14 Nm
(j/-&j
:Vehicles with anti-lock&
braking system>
9-14
Nm7-10 ft.lbs.
4-6 Nm3-4 ftlbs.04AOO48
2-4 ft.lbs.
Removal steps
1. Branch tube bracket
2. Branch tube
3. Radiator cap
4. Drain plug
5. Overflow tube
6. Reserve tank
41) l +7. Radiator upper hose+e ,+ 8. Radiator lower hose
a+9. Automatic transaxle oil cooler hoses 10. Therm0
sensor connector
11. Radiator fan motor COnneCtOr12. Condenser fan motor connector
(FWD, AWD-MIT&Vehicleswith air conditioning>13. Upper insulator
14. Radiator assembly
15. Radiator fan motor assembly
16. Condenser fan motor assembly17. Therm0 sensor
18. Lower insulator
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COOLING - Radiator14-11
04A0020
A
B’ -WaterI
423°C (725°F)temperature
TSB Revision RESISTOR INSPECTION (AWD-ATT), Turbo>
(1) Remove‘ the radiator fan motor connector.
(2) Measure the resistance between terminals
0 and @.
(3) It can be judged OK if the resistance value is within the following range.
Resistance value:
0.26-0.32 Q
THERM0 SENSOR INSPECTION
Check for continuity with the therm0
sensor in hot water.
NOTE
Immerse therm0
sensor in hot water up to mounting thread to
check for continuity.
Standard value:
Continuity at 82-88”C (180-190°F) . . . . . . . . . . . . . . . at A point
No continuity at 7844°C (172-183°F) . . . . . . . . . . . at B point
RADIATOR FAN MOTOR RELAY INSPECTION
(1) Remove radiator fan motor. relay from engine room relay box.

COOLING - Water Hose and Water Pipe 14-23
WATER HOSE AND WATER PIPE MldA-A
REMOVAL AND INSTALLATION
Pre-removal and Post-installation
*Draining and Supplying of the En-
(Refer to GROUP 00-Maintenance
12-15 Nm
g-11
ft.lbs.
715-20 Nm
Ill329 - 36 fths.
\ 12-15 Nm
9-11 ft.lbs.
Mbm42
Removal steps
1. Air intake hose
2. Oil level gauge
3.O-ring4.Self-locking nut5.Gasket6. Connection for oxygen sensor
7. Exhaust manifold cover (A)
8.Engine hanger9.Exhaust manifold
10. Exhaust manifold gasket11. Connection for heater hose12. Water by-pass hose13. Water hosei41 Connection for radiator lower hose (Referto P.14-IO.)I 5. Water inlet pipe (Refer to P.14-18.)16. O-ring (Refer to P.14-18.)
INSPECTIONMl4lcAA
WATER PIPE AND HOSE INSPECTION
Check the water pipe and hose for cracks, damage, clog andreplace them if necessary.
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14-24COOLING - Water Hose and Water Pipe
WATER HOSE AND WATER PIPE
M141A-B
REMOVAL AND INSTALLATION
Pre-removal and Post-installation
ODeration*braining and Supplying of the Engine
12-15 Nm
4(,-s‘, ,,,,,, /
29-36 ftlbs.
/
, ‘r- y’ ft”bs.
\.
30-40 Nm\
22-29 ft.lbs.‘,L.\
‘7;
\“.‘i
\
Removal steps
1. Condenser fan motor assembly2. Self-locking nut
3. Gasket 6. Self-locking nut
’
7. Engine hanger
8. Exhaust manifold
9. Exhaust manifold gasket
10. Exhaust manifold cover (6)4. Connection for oxygen sensor connector
5. Exhaust manifold cover (A)
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14-26COOLING - Water Hose and Water Pipe
WATER HOSE AND WATER PIPE
REMOVAL AND INSTALLATION
MlUA-B
IF‘re-removal and Post-installationOperation eDraIning
and Supplying of the En- glne
Coolant
(Refer to GROUP
00-Maintenance Service.)
12-15 Nm
9-11 ftlbs.
12-15 ‘Nm9-11 ft.lbs.
25-30 Nm’ 7
18-22
ft.lbs.68
A
40 50 Nm’&\29136 ft.lbs.4Ib.
q 2,h
40-50 Nm
9-11 ft.lbs.
30-40 Nm22 - 29 ft.lbs.
30-40 Nm\22-29 ft.lbs. \ OSAOOSS
Removal steps
1. Condenser fan motor assembly(FWD,
AWD-M/T)

2 Self-locking nut
3. Gasket4. Connection for oxygen sensor
5. Exhaust manifold cover (A)
6. Self-locking nut
7. Engine hanger
8. Exhaust manifold
9. Exhaust manifold gasket
10. Exhaust manifold cover (B)
1 TSB Revision

COOLING - Water Hose and Water PiDe 14-27
-55 Nm
Removal steps
11. Connection for oxygen sensor andcontrol harness
12. Water hose
13. Water by-pass hose
14. Connection for heater hose
15. Connection for radiator lower hose (Referto P.14-10.)
16. Water inlet pipe (Refer to P.14-18.)17. O-ring (Refer toP.14-18.)
04A0050
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