engine MITSUBISHI GALANT 1989 Service Repair Manual

COOLING -Engine Coolant Temperature Gauge Unit, Engine Coolant
Temperature Sensor and Engine Coolant Temperature Switch14-33
20R0586
ENGINE COOLANT TEMPERATURE SWITCH

(Air conditioning or A/T control)
(1) Remove the engine coolant temperature switch from the
water outlet fitting.
(2) immerse the engine coolant temperature switch in oil and heat by a gas stove or similar method so as to increase the
oil temperature.
(3) Check to be sure that the engine coolant temperature switch is switched ON when the oil temperature reaches
the standard value.
Standard value:
lOO-104% (212-219°F)
CautionUse engine oil for this test; stir it well while heating,
and do not heat more than necessary.
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1

INTAKE AND EXHAUST - Specifications15-3
Items) Nm1
ftlbs.
Intake manifold
Accelerator cable to intake manifold plenum
Fuel high pressure hose to fuel rail
Fuel rail to intake manifold
Ignition coil <8 VALVE>
Intake manifold stay
Intake manifold to engine
Throttle body
<8 VALVE>

Intake manifold plenum stay
Intake manifold plenum to intake manifold
Water outlet fitting
EGR valve
(8 VALVE>
Cl6 VALVE>
EGR temperature sensor
Distributor
Therm0 valve
Control harness protector to intake manifold plenum
Vacuum pipe and hose assembly to intake manifold
ntake manifold
Accelerator cable to intake manifold
Throttle body stay
Fuel high pressure hose to fuel rail
Fuel rail to engine
Intake manifold stay
Intake manifold to engine
Mounting bolt
(M8)
Mounting nut and bolt (MIO)
Ignition coilIgnition power transistor unit
Throttle body
EGR valve
EGR temperature sensor
Control harness protector to intake manifold
Control harness clamp bolt
xhaust manifold
Heat protector to exhaust
Exhaust manifold to engine
(8 VALVE>
< 16 VALVE>
Oxygen sensor
xhaust manifold
Exhaust manifold cover (A), (8)
Engine hanger to engine mount
Engine manifold to engine
Oxygen sensor
4-6
4-6 IO-13
12-15
18-25
15-20
3-4
3-4
7-
9
9-11
13-18
11-14
IO-13
7-9
15-22 II-16
15-20
II-14
15-20
11-14
17-20
12-14 IO-15
7-11
17-26
13-18 IO-12
7-9 IO-13
7-9 20-40
14-28
4-6 3-4
8-12 6-8
4-6 3-4
15-22 II-16
4-6 3-4 IO-13
7-9 25-30
18-22 15-20
30-42
20-27
IO-12
15-22
15-22
IO-12
4-6 IO-12 II-14
22-30
14-20
7-9 11-16
11-16
7-9
3-4
12-15
7-
9
9-11 15-20 11-14
25-30
18-22
27-33 20-23
40-50
29-36
12-159-11
12-15 9-11 25-30
18-22 40-50
29-36
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I

15-4INTAKE AND EXHAUST - Specifications
Items
Exhaust manifold
Front exhaust pipe to exhaust fitting
Front exhaust pipe to engine
Heat protector
(A), (B)
Engine oil level gauge guide mounting bolt
Engine hanger to engine
Exhaust manifold to engine
Exhaust manifold to turbocharger
Oil pipe to engine
Water pipe.(B) to water inlet pipe
Turbocharger waste gate actuator Oxygen sensor
Water pipe (B) to turbocharger
Air outlet fitting
Oil pipe to turbocharger
Water pipe (A) to turbocharger
Water pipe (A) mounting bolt
Exhaust fitting
Oil return pipe
!xhaust manifold and turbocharger
Front exhaust pipe to turbocharger
Front exhaust pipe to engine
Heat protector
(A), (B)
Engine hanger to engine
Exhaust manifold to engine
Exhaust manifold to turbocharger
Oil pipe to engine
Water pipe
(B) to water inlet pipe
Oxygen sensor
Water pipe (B) to turbocharger
Air outlet fitting Oil pipe to turbocharger
Water pipe (A) to turbocharger
W
ater pipe (A) mounting bolt
Exhaust fitting
Oil return pipe
Exhaust pipe and main muffler
Front exhaust pipe to exhaust manifold



Front exhaust pipe clamp
Rubber hanger
Front exhaust pipe to catalytic converter
Catalytic converter to center exhaust pipe
Hanger bracket to body
Hook to center exhaust pipe
Center exhaust pipe to main muffler
Moulding to main muffler
1 TSBRevision
Nm
40-60
30-40
12-15
12-15
12-15
25-30
55-65
14-19
40-50
IO-13
40-50
35-50
17-20
28-34
35-50
IO-12
55-65
8-10
40-60
30-40
12-15
12-15
25-30
55-65
14-19
40-50
40-50
35-50
17-20
28-34
35-50
IO-12
55-65
8-10
40-50
30-40
40-60
30-40
IO-15
40-60
30-40
IO-15
IO-15
30-40
4-
6
1
ft.lbs.
29-43
22-29
9-11
9-11
9-11
18-22
40-47
10-14
29-36
7-
9
29-36
25-36 12-14
20-25
25-36
7-
9
40-47
6-

7
29-43
22-29
9-11
9-11 18-22
40-47
IO-14
29-36
29-36
25-36
12-14
20-25
25-36
7-
9
40-47
6-

7
29-36
22-29
29-43
22-29
7-11
29-43
22-29
7-11
7-11
22-29
3-
4

INTAKE AND EXHAUST - Service Adjustment Procedures15-7
Turbocharger waste
gate actuator
05A0150
OSAOlSl
TURBOCHARGER SUPERCHARGING PRESSURE
INSPECTIONM7!%3AAB
Caution
Perform running inspection with two passengers in tha
vehicle and where full throttle acceleration can ba sefely
made.
The pressure gauge reading is taken by a front seat
passenger.
(1) Disconnect the supercharging pressure control hose at the
solenoid valve (fixed to the air cleaner), and plug the nipple.
Attach the pressure gauge to the hose.
(2) Drive the vehicle with full throttle and accelerate the engine to a speed of more than 3,500 rpm at
2nd gear. Measure
the supercharging pressure when the pointer is stabilized.
Standard value:
31-70 kPa (4.4-10.1 psi)
Caution
If the supercharging pressure deviates from the standard
value, check the following items for possible causes.
When pressure is high: Turbocharger waste gate actuator malfunction
When pressure is low: Turbocharger waste gate actuator malfunction
Supercharging pressure leaks
Faulty turbocharger
INTAKECHARGEPRESSURECONTROL
SYSTEM INSPECTION
MlSGFAAa
(1) Disconnect the vacuum hose (white-striped) from the tur- bocharger waste gate actuator, and connect the hand va-
cuum pump to the vacuum hose.
(2) Disconnect the vacuum hose (black) from the boost nipple which controls the turbocharger waste gate actuator.
(3) Insert the blind plug into the nipple from which the vacuum hose was disconnected.
(4) Keep the
(-) terminal of the battery disconnected for 10
seconds or longer, and then reconnect the terminal.
(5) Close and open the vacuum hose (black) end with your
finger, and apply negative pressure to check the negative
pressure state.
Engine state
stop(Ignition
switch: ON)
Idling Hose (black)
Opened
Normal state
Negative pressure
leaks.
Closed by fingerNegative pressure is
maintained.
Negative pressure
leaks.
NOTE
If negative pressure is not normal, it can be assumed that
there is a malfunction in the turbocharger waste gate sole-
noid or vacuum hose.
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15-8INTAKE AND EXHAUST - Service Adjustment Procedures
u--05A0155
61 N006C
6 I NO056
(6) Put a blind plug on the vacuum hose (black) end.
(7) Apply negative pressure when idling. and check thenegative pressure state when the knock sensor is con-
nected and disconnected.
I
Engine stateKnock sensor Normal state
connectorI
Idling
ml
NOTE
If negative pressure is not normal, it can be assumed that
there is a malfunction in the knock sensor circuit.
(8) Turn off the ignition switch, and connect the connector of the knock sensor.
(9) Use scan tool to erase the diagnostic trouble code or dis- connect the (-) terminal of the battery for 10 seconds or
more.
NOTE
This erases the diagnostic memory of the knock sensor
trouble by disconnecting the knock sensor connector.
TURBOCHARGER WASTE GATE SOLENOID INSPECTION
MlSGGM
(1) Operation check Using a hand vaccum pump, apply a negative pressure to
the solenoid valve nipple on which the white vacuum hose
is connected, and check air-tightness when the voltage is
applied to the solenoid valve terminal and when it is released
from the terminal.
I
Other nipple ofBattery Voltage solenoid valveNormal state
OpenedNegative pressureleaks.I
When applied
Closed by fingerNegative pressureis maintained.LIII
Negative pressureis maintained.IIWhen released Opened
(2) Continuity check of coil Measure the solenoid valve terminal resistance.
Standard value: 36-44
0 [at 20°C (68OF)l
TURBOCHARGER BYPASS VALVE INSPECTIONMlSGHAA
(1) Remove the turbocharger bypass valve.
(2) Connect the hand vacuum pump to the nipple of the turbo-
charger bypass valve.
(3) Apply a negative pressure of approx. 53.3
kPa (7.7 psi), and
check operation of the valve. Also check that air tightness
is maintained.
INegative ‘pressure Valve operation-1
IAbout 53.3 kPa (7.7 psi)It starts opening.I
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15-14INTAKE AND EXHAUST -Intake Manifold
INTAKE MANIFOLD
{EMOVAL
AND INSTALLATION
4-6 Nm
Y “1 ~/c 3-4 ft.‘bs.At
4-6 ‘Nm
3-4 ft.lbs.
Removal steps
I. Air intake hose2. Connection for accelerator cable+e l +3. Connection for radiator upper hose4. Connection for water by-pass hose5. Water hose
6. Connection for heater hose
7. Connection for brake booster vacuum hose
8. Connection for fuel high pressure hose9. O-ring
10. Connection for fuel return hose
II. Connection for vacuum hoses12. Vacuum pipe13. PCV hose14. Connection for control harness
MlSMA-A
4-6 N
m
3-4
ft.lbs.OlA0647
Pre-removal Operationl Draining of Engine Coolant
(Refer to GROUP 00-MaintenanceService.)
Post-installation Operationl Filling of Engine Coolant(Refer to GROUP 00-MaintenanceService.)
l Adjustment of Accelerator Cable (Refer to GROUP
13-Engine Con-
trol.)
l inspection of Fuel Pressure
(Refer to GROUP
13-On-VehicleInspection of MFI Components.)
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INTAKE AND EXHAUST -Intake Manifold 15-15
lo-13 Nm
r
7-9 ftlbs.IO-13 Nm7-9 ftlbs.
IS-20 Nm
11-14 ft Ibs-- -- --I-
7-11 ft.lbs
‘S-20 Nm11-14 ftlbs.
9- 11
ftlbs.lo-13 Nm7-9
ftlbs.
20-40 Nm,14-28 ft.lbs.
osAooss
--l8
++ ** 15. Fuel rail, fuel injector and pressure
regulator
16. Insulator
17. Insulator
18. High tension cable and spark plug cable19. Distributor20. Intake manifold stay21. Engine hanger
22. Ignition power transistor bracket
23. Intake manifold
24. Intake manifold gasket
25. Throttle body assembly
26. Gasket (Refer to GROUP
13-Throttle Body.)
27. Intake manifold plenum stay
28. Intake manifold plenum
29. Intake manifold plenum gasket
30. Ignition coil
31. Thermal vacuum valve Federal>
32. Therm0 valve 33. EGR valve34. EGR gasket
35. EGR temperature sensor California>
36. Water outlet fitting
37. Gasket 38. Thermostat
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15-18INTAKE AND EXHAUST - Intake Manifold (SOHC-16 VALVE>
INTAKE MANIFOLD

REMOVAL AND INSTALLATION< 1993 models>
?.llSt.lA-A
4-6 N
m
3-4
ft.lbs.
7#jfi6
/ '
6-8 ft.lbs.
2
10OSAO215
Removal steps
1. Air intake hose2. Connection for accelerator cable3. Connection for brake booster vacuumhose
4. Connection for vacuum pipe and hose
assembly
5. Connection for water hose6. Connection for fuel high pressure hose7. O-ring8. PCV hose9. Connection for vacuum hoseIO. Connection for fuel return hose (Refer to GROUP
OO-Maintenance
Post-installation Operationl
Filling of Engine Coolant(Refer to GROUP 00-MaintenanceService.)l Adjustment of Accelerator Cable(Refer to GROUP 13-Engine Control.)l inspection of Fuel Pressure
(Refer to GROUP 13-On-vehicle In-
spection of MFI
Components.)
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INTAKE AND EXHAUST -Intake Manifold 15-19
16
\305A0220
lo-13 Nm7-9 ft.lbs.
/R24
,,/13-18 ft.lbs.
’15-20 Nm11-14ft.lbs.
11. Engine coolant temperature gauge unitconnector
12. Engine coolant temperature sensor
connector
13. Oxygen sensor connector
14.Distributor connector15.Condenser connector16.TPS connector17.IAC connector18.injector connector19.Control harness
18-2iNm13-18 ft.lbs.
05AO222
4I) 1)+20. Fuel rail, injector and pressure regulator
assembly
21. Insulator
22. Intake manifold stay
23. Intake
manifold24. Intake manifoii gasket
25. Throttle body
1)+26. Throttle body gasket27. EGR valve28. EGR gasket
29. EGR temperature sensor California>
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INTAKE AND EXHAUST - Intake Manifold 15-21
INTAKE MANIFOLD

REMOVAL AND INSTALLATION 4-6 Nm
14

. 3-4
ft.lbs.
i 15-22
Nm
11-16 ft.lbs./’
/6 *= 15-22
Nm
11-16
ft.lbs.
‘urbo>fl\sT
M15MA-9
/I05AO183
129
for
o!wn39
Removal steps 1. Air intake hose
2. Air hose
D 3. Connection for control harness
4. Connection for accelerator cable 5. Ground plate installation screw
6. Throttle body stay and ground plate
7. Connection for water by-pass hose
8. Connection for water hose
9. Connection for brake booster vacuum
hose10. Connection for fuel high pressure hose11. O-ring12. Connection for fuel return hose13. Connection for PCV hose14. Connection for vacuum hoses15. Connection for spark plug cableNOTEl l : +2:
05A0045
Pre-removal Operationl Draining of Engine Coolant(Refer to GROUP 00-MaintenanceService.)
Post-installation Operationl Filling of Engine Coolant (Refer to GROUP 00-Maintenance
Service.)
l Adjustment of Accelerator Cable (Refer to GROUP 13-Engine Con-trol.)l Inspection of Fuel Pressure(Refer to GROUP 13-On-Vehiclelnseection of MFI Comgonents.)
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