1989 MITSUBISHI GALANT Service Repair Manual

INTAKE AND EXHAUST -Exhaust Manifold 15-31
EXHAUST MANIFOLD
REMOVAL AND INSTALLATION
12-15
Nm
Removal
12-15.Nm - g-11
ft.lbs.
steps
9-l 1 ftlbs.
lh ./-I
‘Uc Ml5NA.C
05AO192
Coolant
(Refer to GROUP
00-Maimtenance Service.)eDraining and Refilling Engine
1. Radiator (Referto GROUP 14-Radiator.)
2. Connection for air intake hose
3. Connection for vacuum hose
4. Connection for air hose A 5. Oxygen sensor connector
6. Air outlet fitting
7. Gasket
8. Heat protector A 9. Heat protector
B10. Self-locking nut
11. Engine hanger
12. Eye bolt
‘\!I 1
5
Ilation Operationl Draining and Refilling Engine
Oil
-
(Refer to GROUP 00-Main.tenance Service.)
13. Gasket14. Connection for water hose15. Connection for water pipe.B16. Self-locking nut17. Gasket18. Exhaust manifold
19. Exhaust manifold gasket
20. Ring
21. Gasket
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15-32INTAKE AND EXHAUST - Exhaust Pipe and Main Muffler
EXHAUST PIPE AND MAIN MUFFLER M15RA.A
iREMOVAL AND INSTALLATION
IO-15 Nm7-l 1 ft.lbs.
h
lo-15 Nm
7-11 ft.lbs.
IO-15 Nm7- 11 ft.lbs.
23 30-40
Nm
22-29
ft.lbs.
’1715lIl 30-40
Nm
22-29ftlbs.29-43ft.lbs.22-29ft.lbs.
40-50Nm29 - 36ftlbs.
05A0069
< 1993 models>
IO-15 Nm22.1
7-11
ftlbs.20
40-50
Nm30-40Nm2140-60Nm29-36ft.lbs.22-29 ft.lbs.29-43
ftlbs.05A0216
Removal steps
1.Hanger2.Main muffler3.Gasket4.Hanger bracket5. Self locking nut6.O-ring7.Hook8.Bracket
9.Stopper
10.Hanger bracket11.Hanger12.Protector13.Hanger bracket14.Center exhaust pipe15. Gasket16.Dynamic damper
17.Catalytic converter18.Gasket19.Self locking nut20.Hanger21.Front exhaust pipe22.Gasket23. Front floor heat protector panel
INSPECTION
MlSRCAH
l Check the mufflers and pipes for corrosion or damage.
lCheck the rubber hangers and rubber O-rings for deterio- ration or damage.
l Check for gas leakage from mufflers and pipes.
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INTAKE AND EXHAUST -Exhaust Pipe and Main Muffler
EXHAUST PIPE AND MAIN MUFFLER
15-33M15R4-8
REMOVAL AND INSTALLATION
24
IO-15 Nmlo-15 Nm
7-11ft.lbs.5157-11ft.lbs.,
,IO-15
Nm 7-11

ft.lbs.
30-40 Nm
22-29 ft.lbs.
30-40 NmI
22-29 ft.lbs. 40-60
Nm
29-43 ftlbs.
40-50 Nm29 - 36 ft.lbs.
Removal steps
1.Hanger2.Main muffler
3.Gasket4.Moulding5.Hanger bracket6. Self locking nut7.O-ring
8.Hook9.Bracket10.Stopper11.Hanger bracket12.Hanger
13.Protector14.Hanger bracket15. Center exhaust pipe
16.Gasket17.Catalytic converter18.Gasket19. Self locking nut20.Hanger
22. Front exhaust pipe23. Gasket24. Front floor heat protector panel
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15-34INTAKE AND EXHAUST -Exhaust Pipe and Main Muffler
lo-15 Nm
7-Y ft*lbs.
10-15 Nm
7-11
ft.lbs
24
lN2340-60 Nm
/29-43 ft.lb
3-4 ft.lbs. 30-10
Nm
$0-40 Nm
22-29
ft.lbs. 22-29
ft.lbs.I Turbo>
40-60 Nm29-y ft.lbs.
/\Ignr ?,40 Nm 40-60
Nm 22-29
ft.lbs.29-43 ft.lbs.
\30-40 NmZ-29 ft.lbs.
IO-15 Nm7-11 ft.lbs.
05A0195
Removal steps
1.Hangers2.Main muffler3.Gasket4.Moulding5.Hanger bracket6. Self locking nut12.Hanger13.Protector14.Hanger bracket15. Center exhaust pipe16.Gasket
17.Catalytic converter18.Gasket
19. Self locking nut
20.Hanger21.Hanger bracket22. Front exhaust pipe23.Gasket
24. Front floor heat protector panel
INSPECTION
Refer to P.15-32 MllRCAL
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n
I

EMISSION CONTROL
SYSTEMS
CONTENTSr.w?API-
CATALYTIC CONVERTER.....................29
EVAPORATIVE EMISSION CONTROL
SYSTEM..........................................15
Air Conditioning Switch........................21
Component Location...........................15
Evaporative Emission Canister................21
Evaporative Emission Purge Solenoid.......21
Fuel Tank Filler Tube Cap Inspection........21
Fuel Tank Pressure Control Valve............21
Purge Control System Inspection
.................................17
Purge Control System Inspection
>
.......................................
18
Purge Control Valve
..............20
Purge Port Vacuum............................19
Volume Air Flow Sensor, Engine Coolant
Temperature Sensor and Intake Air
Temperature Sensor
...........................21
EXHAUST GAS RECIRCULATION (EGR)
SYSTEM..........................................22
Component Location...........................22
EGR Solenoid ..................28
EGR System Inspection
......25
EGR System Inspection ........25
EGR Temperature Sensor ...28
EGR Valve
......................................27
EGR Valve Control Vacuum..................26
Thermal Vacuum Valve ........27
MIXTURE CONTROL (MFI) SYSTEM. . . . . . . . 29
POSITIVE CRANKCASE VENTILATION
SYSTEM..........................................13
Component Location..........................13
Crankcase Ventilation System Inspection
...14
Positive Crankcase Ventilation (PCV)
Valve Inspection
...............................14
SPECIFICATIONS..................................2
General Specifications...........................2
Sealant............................................2
Service Specifications...........................2
Torque Specifications...........................2
TROUBLESHOOTING.............................3
VACUUM HOSES.................................4
Vacuum Circuit Diagram........................9
Vacuum Hoses Routing.........................4

17-2EMISSION CONTROL SYSTEMS - Specifications
SPECIFICATIONS
GENERAL SPECIFICATIONSMl’IcA-
Positive crankcase ventilation system
Evaporative emission control system
Evaporative emission canister
Exhaust emission control system
Exhaust gas recirculation systemEGR valve
Thermal vacuum valve
EGR temperature sensor
EGR solenoid
Catalytic converter
Location
Closed type with Positive Crankcase Ventilation valve
Evaporative emission canister storage type
Charcoal type
Vacuum-actuated diaphragm type Bimetal type
Thermistor type
Duty cycle solenoid valve
Monolith type
Under floor
SERVICE SPECIFICATIONS M17CB-
Items1 Specifications
Evaporative emission purge solenoid coil resistance
Thermal vacuum valve closing temperature
EGR temperature sensor resistance
Q 36-44 [at 20°C (68”F)I
‘C (“F) 65 (149)
kQ 60-83
[at 50°C (122”F)l
11-14 [at 100°C (212”F)l
EGR solenoid coil resistance52 36-44 [at 20°C (68°F))
TORQUE SPECIFICATIONS
ItemsNmft.1 bs.
Positive crankcase ventilationvalve8-12
6-8.6
EGR valve installation bolt17-2612-19
Thermal vacuum valve20-40 15-30
EGR temperature sensorIO-127.3-8.6
SEALANT
Items
Thermal vacuum valve thread portion
Specified sealant3M NUT locking Part No.4171 or equivalent
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EMISSION CONTROL SYSTEMS - Troubleshooting17-3
TROUBLESHOOTINGMVEA-
SymptomProbable causeRemedy
Engine will not start or hardVacuum hose disconnected or Repair or replaceto startdamaged
The EGR valve is not closed. Repair or replace
Malfunction of the evaporativeRepair or replace
emission purge solenoid
Rough idle or engine stalls The EGR valve is not closed.Repair or replace
Vacuum hose disconnected or damaged Repair or replace
Malfunction of the positive crankcaseReplaceventilation valve
Malfunction of the purge control system Check the system; if there is a
problem, check its component parts.
Engine hesitates or poorIcceleration
Zxcessive oil consumption
)oor fuel mileage
Malfunction of the exhaust gasrecirculation system
Positive crankcase ventilation line
clogged
Malfunction of the exhaust gas
recirculation system Check the system; if there is a
problem, check its component parts.
Check positive crankcase ventilation
system
Check the system; if there is a problem,
check its component parts.
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17-4EMISSION CONTROL SYSTEMS - Vacuum Hoses
VACUUM HOSES
VACUUM HOSES ROUTING
M17.M-

Evaporative
emission cani*--
Evaporative emission
purge solenoid
Throttle body
G: Green Thermal vacuum valve
\Y : Yellow
L : Light blue
R: Red
B : Black EGR’ valveFRONT
Fuel pressure
regulator
6EM0189

Evaporative Evaporative emission
emission canister
,I purge solenoid
Thr ot t IihR
Y
G: Green
Y:Yellow
L : Light blue
R: Red
B : Black
EGR \alveFRGT
6EM0190
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EGRsolenoid
Fuel pressure
regulator