1989 MITSUBISHI GALANT Service Repair Manual

.
ENGINE - Timing Belt11-87
installation bolt ~~~-
Crankshaft
sprocket “B”
/
Crankshaft /\ \
sprocket Flange Crankshaft 6~~272
6EN172I
(3) To ensure that the tension is correct, depress the belt
(point A) with a finger. If not, adjust.
Standard value: 5-7 mm
(.20-.28 in.)
29. INSTALLATION OF FLANGE Install the flange in correct direction as shown
Caution Pay special attention to the direction of the flange. If it
is installed in the wrong direction, a broken timing belt
could result.
28. INSTALLATION OF CRANKSHAFT SPROCKET Install the crankshaft sprocket in the correct direction as
shown.
Caution Pay special attention to the direction of the flange. If it
is installed in the wrong direction, a broken timing belt
could result.
25. INSTALLATION OF OIL PUMP SPROCKET (1) Insert a Phillips screwdriver [shank diameter 8 mm
(.31
in.) shaft] through the plug hole on the left side of
cylinder block to block the left silent shaft.
(2) Install the oil pump sprocket.
(3)
apply engine oil to the nut bearing surface and tighten
the nut to the specified torque.
24. INSTALLATION OF CAMSHAFT SPROCKETS Using a wrench, hold the camshaft at its hexagon (between
the No.2
and No.3
journals) and tighten the bolt to
specification.
Caution Locking the camshaft sprocket with a tool damages the
sprocket.
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ENGINE - Timing Belt
6
@
Plug
6EN0281
Center bolt :
6EN026:-
19. INSTALLATION OF AUTO TENSIONER
(1) If the auto tensioner rod is in its fully extended position, reset it as follows.
@I Keep the auto tensioner level and, in that position,clamp it in the vise with soft jaws.
If the plug at the bottom of the auto tensioner
protrudes, surround it with a plain washer as illustrated to prevent the plug from being in direct
contact with the vise.
@ Push in the rod little by little with the vise until the set hole @ in the rod is aligned with that
@I in the
cylinder.
@ Insert a wire Il.4 mm (055 in.) in diameter] into the
set holes.
@I Unclamp the auto tensioner from the vise.
(2) Install the auto tensioner. CautionLeave the wire installed in the auto tensioner.
21. INSTALLATION OF TENSIONER PULLEY
(1) Install the tensioner pulley onto the tensioner arm.
(2) Locate the pinhole in the tensioner pulley shaft to the left of the center bolt. Then, tighten the center bolt
finger-tight.
Caution
Leave the wire installed in the auto tensioner.
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I

ENGINE - Timing Belt11-89
Camshaft sprocket
Top surface of
cylinder head
/b*TJ,$
:-; /
e
\I’ \ii)’
Timing mark
6EN028L
--.-./Dowel pin
Timing mark
6EN0304
20. INSTALLATION OF TIMING BELT
(1) Turn the two sprockets so that their dowel pins arelocated on top. Then, align the timing marks facing each
other with the top surface of the cylinder head. When
you let go of the exhaust camshaft sprocket, it will
rotate one tooth in the counterclockwise direction. This
should be taken into account when installing the timing
belt on the sprockets.
NOTE
The same camshaft sprocket is used for the intake and exhaust camshafts and is provided with two timing
marks. When the sprocket is mounted on the exhaust
camshaft, use the timing mark on the right with the
dowel pin hole on top. For the intake camshaft sprocket, use the one on the left with the dowel pin
hole on top.
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II-90ENGINE - Timing Belt
(5) Install the timing belt around the intake side camshaft sprocket and fix it at indicated position by a spring typepaper clip (binder clip).
(6) Install the timing belt around the exhaust side sprocket, aligning the timing marks with the cylinder head top
surface using two wrenches.
(7) Fix the belt at indicated position by another binder clip.
(8) Install the timing belt around the idler pulley, the oil pump sprocket, the crankshaft sprocket and the ten-
sioner pulley in the order shown.
(9) Remove the two binder clips.
(1O)Lift up the tensioner pulley in the direction of arrow and
tighten the center bolt.
(11)Check to see that all timing marks are lined up. (12)Remove
the screwdriver inserted and fit the plug.
(13)Give the crankshaft a quarter counter-clockwise turn.
Then, turn it clockwise until the timing marks are lined up again.
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ENGINE - Timing Belt11-91
J
Tensioner armTensioner arm
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. ADJUSTMENT OF TIMING BELT TENSION
(1) After turning the crankshaft
l/4 turn counterclockwise,
turn it clockwise to move the No. 1 cylinder to top dead
center.
(2) Loosen the center bolt, and then, as shown in the illustration, attach the special tool and a torque wrench
and apply a torque of 2.6-2.8 Nm (1.88-2.03

ft.lbs.). If
the body interferes with the special tool and the torque
wrench, use a jack to slightly raise the engine assembly.
NOTE
Use a torque wrench that is capable of measurement
within a range of 0- 3 Nm (0- 2.2 ftlbs.).
(3) Holding the tensioner pulley with the special tool and torque wrench, tighten the center bolt to specification.
(4) Screw the tool into the engine left support bracket until its end makes contact with the tensioner arm. At that
point, screw the tool in some more and then remove the
set wire attached to the auto tensioner.
(5) Remove the tool.
(6) Rotate the crankshaft two complete turns clockwise and leave it as is for about 15 minutes. Then, measure
the auto tensioner protrusion “A” (distance between
the tensioner arm and auto tensioner body) to ensure
that it is up to specification.
Standard value: 3.8-4.5 mm
(.15-.I8 in.)
If it is out of specification, repeat steps (6) through (11)
until the specified value is obtained.
(7) If the clearance between the tensioner arm and the auto tensioner body cannot be measured (when the
engine is being mounted, etc.), the following proce-
dures can be used to substitute for the ordinary method
of measurement.
@j Screw in
the tool until it
contacts the tensioner arm.
@From that point of contact, further screw in the tool.
screwing it in
until the push
rod
of the auto
tensioner body is caused to move backward and the
tensioner arm contacts the auto tensioner body.
Check to be sure that the amount that the tool has
been screwed in (when the push rod moves back-
ward) is the standard value.
Standard value:
2.5- 3 turns

(8) Install the rubber plug to the timing belt rear cover.
ENGINE
- Timing Belt
*‘: Up to 1990 models*>. Up to 1992 models A*
B+2

C*’
Thread diameterx thread length
A: 6x
16 1.24x.63)B: 6x22
(.24?87j*‘, 6x18 (.24~.70)*~,*~C: 6x20
(.24x.79)*‘,
6x25 (.24x.98)*2,*3D: 6x28 (.24x1.10)
mm (in.)OlA0681
11. INSTALLATION OF TIMING BELT LOWER COVER/
10. TIMING BELT UPPER COVER
The dimensions of the installation bolts for the timing covers differ according to the installation location, so be
sure not to install the bolts in the incorrect locations.
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13-1
FUEL
CONTENTSM’ISAA--
AUTO-CRUISE CONTROL SYSTEM.............
.
332
AUTO-CRUISE CONTROL ............................. 408
SERVICE ADJUSTMENT PROCEDURES .................397
Accelerator Cables
inspectron and Adjustment ........
.
398 Auto-cruise
Control System Inspection
..............397
Individual Parts Inspection ......................
401SPECfAL
TOOLS
.....................................
333
SPECIFICATIONS .................................... 332
TROUBLESHOOTING ................................. 334
Auto-cruise Control Components Location ..........368
Auto-cruise Control
Related Harnesses
..........365
Check Chart ................339
Check Chart ..............354
Circuit Diagram ................................
371input Checking................................
.
366
On-board Diagnostic Checking ......................
361Troubleshooting Quick-reference Chart
.........................
.
334
Troubleshooting Quick-reference Chart ............................. 350
ENGINE CONTROL...............................
.
328
ENGINE CONTROL ..................................
330
SERVICE ADJUSTMENT PROCEDURES .................329
Accelerator Cable inspectron and Adjustment
...........329
Accelerator Switch Inspection and Adjustment ..........329
SPECIFICATIONS ....................................
328
TROUBLESHOOTlNG................................
.
328
Accelerator
Cable and Accelerator Pedal .............
.
328
FUEL SYSTEM ........................196
FUEL FILTER .........................................
327
FUEL LINE AND VAPOR LINE
...............
.
326
FUEL LINE AND VAPOR LINE
...............
.
324
FUEL TANK
...............................
.
322
FUELTANK ...............................
.
318
GENERAL INFORMATION ............................ 196
ON-VEHICLE INSPECTION OF MFI
COMPONENTS
......251
Air Conditioning Switch and A/C Compressor Clutch Relay .....................................
285
Barometric Pressure Sensor .................... 266
Boost Meter .............................
311Camshaft Position Sensor ........................
.
277Closed Throttle Position Switch
.....................
.
274
Component Location .............................
251Components Inspection Pocedure
................. 255
Crankshaft Position Sensor ..................... 280EGR
Solenord
...................
.
307EGR Temperature Sensor
.............
.
288Engrne Control Module Power Ground
................
.
257
Engine Coolant Temperature Sensor ..................
268Evaporative Emission Purge Solenoid .................
.
307
Fuel Pressure Solenoid ....................
307Fuel Pressure Test...............................
.
312
Fuel Pump ...................................... 258
Heated Oxygen Sensor ............................ 290
Idle Air Control Motor (Stepper Motor) ................
238Ignition Coil and Ignition Power Transistor .............
.
302
Ignition Switch-ST .................................. 284
Ignition Switch-ST and Park/Neutral Position Switch .....284
Injectors .......................................
295Inspection of Engine Control Module Terminal
Voltage .......................................
.
315
Intake Air Temperature Sensor .......................263
Knock Sensor .............287
Power Steering Pressure Switch ......................
284Power Supply and Ignition Switch ...................
.
255Resistor
..............................
.
298Terminal Voltage Check Chart
......................
.
315Throttle Position Sensor
..........................
.
270Turbocharger Waste Gate Solenoid
.........
.
309 Vehicle
Speed Sensor
............................... 284
Volume Air Flow Sensor ............................
261SERVICE ADJUSTMENT PROCEDURES ...............
.
245
Basic
idle Speed Adjustment .......................
.
245
Closed Throttle Position Switch (Fixed
SAS)Adjustment ......................................
.
250
Curb
Idle Speed Inspection
..........................245Throttle Body (Throttle Valve Area) Cleaning
...........
.
248Throttle Position Sensor Adjustment
..................
.
248
SPECIALTOOLS...................................
.
204
SPECIFICATIONS ...................................
201TROUBLESHOOTING ...............................
.
205
Check Engine/Malfunction Indicator Lamp ..............205
Circuit Diagram .................................... 214
Clear Memory of Diagnostic Trouble Code .............
211Explanation and Precaution Related to Harness
Checking ......................................
.
205Explanation of Troubleshooting Procedures
............
.
205Failsafe/Back-up Functions List
.....................
.
211Fuel tank and Fuel Line
............................
.
244
Read Out Diagnostic Trouble Code ...................
211Troubleshooting Table
.............................
.
208(CONTINUED ON NEXT PAGE)

13-2
FUEL SYSTEM VALVE>
..........
FUEL FILTER ....................................
FUEL LINE AND VAPOR LINE .....................FUELTANK....................................
.
GENERAL INFORMATION ........................
ON-VEHICLE INSPECTION OF MFI
COMPONENTS . .
Air
Conditionrng Switch and A/C CompressorClutch Relay ......
.
.............
Barometric Pressure Sensor .........
Camshaft Position Sensor ...........
Closed Throttle Position Switch ...........
Component Location .............
Components
Inspectron Procedure .......
.
Crankshaft Positron Sensor ............
EGR Solenoid ......
. . .3. .
115..,.113
. 109
. . 3
. . . 38
83
536961384173101EGR Temperature Sensor .........
.
85
Enqine Control Module Power Ground ......
.
....
45
Engine Coolant Temperature Sensor ...............
55Evaporative Emission Purge Solenord..............
.
99
Fuel Pressure ...............................
102Fuel Pump
...................................
.
46
Idle Speed Control Motor (DC Motor) ................
.
93
Idle Speed Control Motor Positron Sensor ............
.
64
lgnitron Co11 and Ignition Power Transistor .........
.
96
Ignition Switch-ST ..........................
77Ignition Switch-ST and Park/Neutral Position Switch
...78
Injectors..................................
.
90
Inspection of
Engrne Control Module Terminal
Voltage .........
.
..........................
105Intake Air Temperature Sensor ..................
.
51Oxygen Sensor
............................
.
87Power Steering Pressure Switch
..................
.
81Power Supply
.........................
.
42
Terminal Voltage Check Chart ......................
106Throttle Positron Sensor.....................
.
57Vehicle Speed Sensor
.........................
.
80
Volume Air Flow Sensor .........................
49
SERVICE ADJUSTMENT PROCEDURES .................
32
Basic
Idle Speed Adjustment ...................
.
33
Curb Idle Speed Inspection ..........................
32Throttle Body (Throttle Valve Area) Cleaning........
.
35
Throttle Positron Sensor Adjustment ................
35
SPECIAL TOOLS 7
.................
...................
SPECIFICATIONS ....................................
5
TROUBLESHOOTING .................................
8
Check Engine/Malfunction Indicator Lamp ..............
10Crrcuit Diagram.................................
.
20
Clear Memory of Diagnostic Trouble Code ............
17Explanation and Precaution Related to HarnessChecking......................................
.
9Explanation of Troubleshooting Procedures
...........
.
8
Failsafe/Back-up Functions List ....................
16Fuel Tank and Fuel Lrne.........................
.
32Read Out of Diagnostic Trouble Code
...............
.
16Troubleshooting Table
.........................
.
13
FUEL SYSTEM VALVE> ...........
116
FUEL FILTER .......................................
195
FUEL LINE AND VAPOR LINE ........................
195
FUEL TANK ........................................ 195
GENERAL INFORMATION ............................
116
ON-VEHICLE INSPECTION OF MFI
COMPONENTS
Air Conditioning Switch and A/C Compressor Clutch Relay .............................
Barometric Pressure Sensor .................
Camshaft Position Sensor ....................
Closed Throttle Position Switch ................
Component Location .......................
Components Inspectron Pocedure
..............
Crankshaft Position Sensor .................
EGR Solenoid
.................
EGR Temperature Sensor .......
Engine Control Module Power Ground ..........
Engine Coolant Temperature Sensor .............
Evaporative Emission Purge Solenoid ............
Fuel Pressure Test ...........................
Fuel Pump ..................................
IAC Valve Positon Sensor
......................
Idle Air Control Motor (DC Motor) ..............
lgnrtion Coil and Ignition Power Transistor
.......
.
Ignition Switch-ST ...........................
Ignition Switch-ST and Park/Neutral Position Switch
Injectors ....................................
Inspection of Engine Control Module Terminal
Voltage .....................................
Intake Air Temperature Sensor .................
Oxygen Sensor .............................
Power Steering Pressure
Swatch..............
.
Power Supply ...............................
Terminal Voltage Check Chart ..................
Throttle Position Sensor .......................
Vehicle Speed Sensor ......................... . . . . 139
176
154
165
16013914216
7
..,_ 191177146
155
189192
147
162
184
186
171172181
192152
179
175
143
192
157
173
Volume Air Flow Sensor ...........................
.
150
SERVICE ADJUSTMENT PROCEDURES
...............
.
133
Basic Idle Speed Adjustment 133
Closed Throttle Position Switch and Throttle Position
Sensor Adjustment .................................
136Curb Idle Speed Inspection
.........................
.
133Fixed SAS Adjustment
.............................
.
138Throttle Body (Throttle Valve Area) Cleaning
...........
.
136
SPECIAL TOOLS
...................................
.
119
SPECIFICATIONS 118
.... ..............................
TROUBLESHOOTING ..................
.............
119
Check Engine/Malfunction Indicator Lamp ..............
120Circuit Diagram...................................
.
128Clear Memory of Diagnostic Trouble Code
............
.
126Explanation and Precaution Related to Harness
Checking ........................................
.
119Explanation of Troubleshooting Procedures
............
.
119Failsafe/Back-up
Fuctions List
........................
126
Fuel Tank and Fuel Line .............................
133Read Out of Diagnostic Trouble Code ................
.
126
Troubleshooting Table ..............................
123