engine oil ISUZU TROOPER 1995 Workshop Manual
[x] Cancel search | Manufacturer: ISUZU, Model Year: 1995, Model line: TROOPER, Model: ISUZU TROOPER 1995Pages: 1928
Page 839 of 1928
DRIVEABILITV AND EMISSIONS 6E2-143
CHART C-40
ELECTRONIC IGNITION (EI) MISFIRE AT IDLE
CD • IF ENGINE MISFIRES UNDER LOAD ONLY, SEE CHART C-4D-2. • ENGINE IDLING AT NORMAL OPERATING TEMPERATURE, DISCONNECT IDLE AIR CONTROL. • MOMENTARILY DISCONNECT EACH SPARK PLUG LEAD, USING INSULATED PLIERS,
WHILE OBSERVING ENGINE SPEED. SEE CAUTION*. • ALL PLUG LEAD(S) SHOULD RESULT IN A REVOLUTION PER MINUTE DROP. DID THEY?
$ $
•
WITH IGNITION "OFF", INSTALL SPARK TESTER (ST-125) J-26792 OR I SEE "ROUGH, UNSTABLE OR INCORRECT IDLE
EQUIVALENT ON PLUG LEAD(S) WHOSE REMOVAL DID NOT RESULT IN OR STALLING" IN SYMPTOMS Si€'FISN "B". REVOLUTION PER MINUTE DROP. • SPARK SHOULD JUMP TESTER GAP WHILE CRANKING ENGINE. DOES IT?
$ $
•
WITH IGNITION "OFF", GROUND THE OPPOSITE PLUG CHECK FOR: @
LEAD OF THE AFFECTED COIL AT SPARK PLUG. -
FAUL TV, WORN OR CRACKED SPARK PLUG(S). • SPARK SHOULD JUMP TESTER GAP WHILE CRANKING -PLUG FOULING DUE TO ENGINE MECHANICAL FAULT. ENGINE. DOES IT? IF SPARK PLUGS CHECK OUT OK, REFER TO "CUTS
OUT, MISSES" IN SYMPTOMS SiC'flet~ "B".
~ $
• CHECK THE RESISTANCE OF EACH PLUG WIRE OF THE REPLACE
THE SPARK PLUG FOR THE LEAD WHICH WAS COIL WHICH DID NOT FIRE THE SPARK TESTER. JUMPERED TO GROUND. IF MISFIRE
IS STILL PRESENT, • WIRE RESISTANCE SHOULD BE LESS THAN 30,000 START MISFIRE TEST AGAIN AT STEP 1. OHMS EACH AND WIRES SHOULD NOT BE GROUNDED.
ARE WIRES OK?
$ $
• REMOVE COIL RETAINING NUTS AND REMOVE COILS.
I
REPLACE FAUL TV WIRE(S).I
• COILS SHOULD BE FREE OF CARBON TRACKING. ARE THEY?
$ $
•
SWITCH A NORMALLY OPERATING COIL WITH THE REPLACE IGNITION
COIL. ALSO CHECK FOR COIL FROM PROBLEM CYLINDER. FAULTY PLUG WIRE CONNECTION(S) AND • SPARK SHOULD JUMP TESTER GAP AT PROBLEM WIRE NIPPLE(S) FOR CARBON TRACKING.
CYLINDER WHILE CRANKING ENGINE. DID IT?
$ $
ORIGINAL IGNITION
I
REPLACE ELECTRONIC IGNITION MODULE. COIL IS FAUL TV.
*CAUTION: When handling secondary spark plug leads with engine running, insulated pliers must be used and care exercised to
prevent a possible electrical shock.
CLEAR DIAGNOSTIC TROUBLE CODES AND CONFIRM "CLOSED LOOP" OPERATION AND NORMAL "CHECK ENGINE" MALFUNCTION
INDICATOR LAMP OPERATION.
Page 840 of 1928
6E2-144 DRIVEABILITY AND EMISSIONS
CHART C-40-2
ELECTRONIC IGNITION (EI) MISFIRE UNDER LOAD
Circuit Description:
The electronic ignition system uses a waste spark method of distribution. For example, in this type of system the
ignition
control module triggers the # 1/4 coil pair resulting in both # 1 and #4 spark plugs firing at the same time
# 1 cylinder is on the compression stroke at the same time #4 is on the exhaust stroke, resulting in a lower energy
requirement
to fire #4 spark plug. This leaves the remainder of the high voltage to be used to fire #1 spark plug.
On this application, the crankshaft position sensor is mounted to the engine block and protrudes through the block
to within approximately 050" of the crankshaft reluctor. Since the reluctor is a machined portion of the crankshaft
and the crankshaft position sensor is mounted in a fixed position on the
block, timing adjustments are not possible
or necessary.
Test Description: Numbers below refer to circled numbers on the diagnostic chart.
CD If the "Misfire" complaint exists at idle only, the diagnostic chart on page 1 must be used. A spark tester such
as a ST-125 must be used because it is essential to verify adequate available secondary voltage at the spark
plug. (25,000 volts). Spark should jump the test gap on all 4 leads. This simulates a "load" condition.
® If the spark jumps the test gap after grounding the opposite plug wire, it indicates excessive resistance in the
plug which was Bypassed. A faulty or poor connection at that plug could also result in the miss condition.
Also, check for carbon deposits inside the spark plug boot.
® If carbon tracking is evident, replace coil and be sure plug wires relating to that coil are clean and tight.
Excessive
wire resistance or faulty connections could have caused the coil to be damaged.
® If the no spark condition follows the suspected coil, that coil is faulty, otherwise, the ignition control module is
the cause
of no spark. This test could also be performed by substituting a known good coil for the one causing
the no spark condition.
COIL ASSEMBLIES IGNITION CONTROL MODULE
ENGINE HARNESS
CONNECTOR
(GREEN) -----
:TI '--+I -l-----,
I
:TI
~
~--------~~-----------YE~GRN
~--------~~--------------VEL ' BLK/RED ------«--TO TACHOMETER &
OPEN ' TCM (C91-D12)
~--------~~-----------YE~RED
1------------((-----------YE~BLK ' BLK/ORN_.' TO IGN COIL FUSE
ENGINE SPEED
1 SENSOR
~SHIELD
IAsiAsii4ibiA21A11
6-WAY ICM
CONNECTOR
Fig. 6E2-90
lcik,l
2-WAY ICM
CONNECTOR ENGINE
CONTROL
MODULE(ECM)
BYPASS
IGNITION CONTROL
SIGNAL
REF HIGH
REF LOW
I
BJIB2I~1I
3-WAY ICM
CONNECTOR
•
Page 841 of 1928
DRIVEABILITV AND EMISSIONS 6E2-145
CHART C-40-2
ELECTRONIC IGNITION (EI) MISFIRE UNDER LOAD
CD • IF ENGINE MISFIRES AT IDLE ONLY, SEE CHART C-4D-1. • IGNITION "OFF"
• DISCONNECT ONE SPARK PLUG LEAD AT A TIME AND,
INSTALL SPARK TESTER (ST-125) J-26792 OR EQUIVALENT.
• OBSERVE SPARK TESTER WITH ENGINE IDLING. REPEAT THIS TEST FOR ALL PLUG LEADS. SEE CAUTION* • SPARK SHOULD JUMP TESTER GAP ON ALL LEADS, WITH
ENGINE IDLING, DID IT?
~ $
• WITH IGNITION "OFF", GROUND THE OPPOSITE PLUG CHECK FOR: LEAD OF THE AFFECTED COIL AT SPARK PLUG. -
FAUL TV, WORN OR CRACKED SPARK PLUG(S). • SPARK SHOULD JUMP TESTER GAP WHILE CRANKING -PLUG FOULING DUE TO ENGINE MECHANICAL FAULT. ENGINE. DOES IT? IF SPARK PLUGS CHECK OUT OK, SEE "CUTS OUT,
MISSES" IN SYMPTOMS SEe'l'tO'I'Q' "B".
~ $
• CHECK THE RESISTANCE OF EACH PLUG WIRE OF THE COIL REPLACE THE SPARK PLUG FOR THE LEAD WHICH
WHICH DID NOT FIRE THE SPARK TESTER. WAS JUMPERED TO GROUND. IF MISFIRE IS STILL
• WIRE RESISTANCE SHOULD BE LESS THAN 30,000 OHMS EACH PRESENT, START MISFIRE TEST AGAIN AT STEP 1. AND WIRES SHOULD NOT BE GROUNDED. ARE WIRES OK?
~ $
• REMOVE COIL RETAINING NUTS AND REMOVE COILS. REPLACE FAUL TV WIRE(S). I ® • COILS SHOULD BE FREE OF CARBON TRACKING. ARE THEY?
$ $
• SWITCH A NORMALLY OPERATING COIL WITH REPLACE IGNITION COIL. ALSO CHECK FOR THE COIL FROM PROBLEM CYLINDER. FAUL TV PLUG WIRE CONNECTION(S) AND • SPARK SHOULD JUMP TESTER GAP WITH WIRE
NIPPLE(S) FOR CARBON TRACKING.
ENGINE IDLING. DID IT?
:r ~ ORIGINAL IGNITION
I
REPLACE ELECTRONIC IGNITION MODULE. COIL IS FAUL TV.
*CAUTION: When handling secondary spark plug leads with engine running, insulated pliers must be used and care exercised to prevent a possible electrical shock.
CLEAR
DIAGNOSTIC TROUBLE CODES AND CONFIRM "CLOSED LOOP" OPERATION AND NORMAL "CHECK ENGINE" MALFUNCTION
INDICATOR LAMP OPERATION.
Page 861 of 1928
DRIVEABILITV AND EMISSIONS 6E2-165
DIAGNOSIS
FUNCTIONAL CHECK OF POSITIVE
CRANKCASE VENTILATION (PCV)
If an engine is idling rough, check for a clogged PCV or
plugged hose. Replace as required. Use the following
procedure.
1. Remove PCV from rocker arm cover.
2. Run the engine at idle.
3. If there is no vacuum at valve, check for plugged
hoses or manifold port, or PCV.
Replace plugged or deteriorated hoses.
4. Stop the engine and remove PCV. Remove
PCV hose. Inspect metered orifice for being
restricted or
plugged. If restricted clean orifice.
With this system, any
blow-by in excess of the system
capacity (from a
badly-worn engine, sustained heavy
load, etc.) is exhausted into the intake manifold and is
drawn into the engine. Proper
operation
of the PCV System is dependent
upon a
sealed engine. If oil sledging or dilution is
noted, and the PCV System is functioning properly,
malfunction
indicator lamp for possible cause and
correct to ensure that system
will function as intended.
RESULTS OF INCORRECT OPERATION
A plugged valve or hose may cause:
• Rough idle.
• Stalling
or slow idle speed.
• Oil leaks.
• Oil
in air cleaner.
• Sludge
in engine.
ON-VEHICLE SERVICE
An engine which is operated without any crankcase
ventilation can be damaged. Periodically, inspect the
PCV, hoses
and clamps and replace any showing
signs
of deterioration.
Page 877 of 1928
AUTOMATIC TRANSMISSION (4l30-E) 7A-5
TRANSMISSION CONTROL MODULE (TCM)
ENGINE
ENGINE SPEED
ECM ENGINE
COOLANT
TEMPSW
;--J
---
SERIAL DATA
TORQUE
t MANAGEMENT TPS +
.L OUT
I -
4L30E
.J:
X a MODE SWA
Xb MODE SWB
Xc MODE SWC
Xg MODE SWG
A Ac OIL TEMP
Ad ANALOG GND
~~x OUTPUT SPEED HI
1 X1 OUTPUT SPEED LO
II A a TCCHI
Me SHIFT SOL. HI
~Md SHIFT SOL. 1-2/3-4
~Ma SHIFT SOL. 2-3
~Mb BAND APPLY SOL.
~Ab FORCE MOTOR HI
Ac FORCE MOTOR LO
ECM: Engine Control Module
TPS: Throttle Position Sensor
TCC: Torque Converter Clutch
ABS:
Anti-Lock Brake System
-
1
·-c
IGN BATT GND
h+ri A7 AS A4 C1 01
D12 VEHICLE
IGN
BRAKE SW ~ D14 D9 ~
DB AJC REQUEST /o---
CB BB POWER SW
=~
WINTERSW B6
C5 KICK DOWN SW C6 B5
-=
D7 IGN
D16 DIAG INIT. D6
~
D5 C10 CHECK TRANS LAMP
D4 TCM 89 POWER LAMP
A10 ATF WARNING LAMP ~
¥ 83 A11 WINTER LAMP
C14
A12
OD OFF SIGNAL CRUISE 812 84 CONTROLLER
811
C7 ABSSIGNAL ABS
810 CONTROLLER
C12
A2
A3
AS
C15
C16
Fig. 7A-3
Page 878 of 1928
7A-6 AUTOMATIC TRANSMISSION (4L30-E)
CONTROL SYSTEM DIAGRAM
L1J ~ (!) z L1J
I
I
lr
t:··
~ .. I I
I
I
AUTOMATIC TRANSMISSION ASSEMBLY
O.:a: :Eo LLJ(J) t-z --' L1J oVl
ENGINE COOLANT TEMPERATURE
ffio ~---a:O wz >LLJ z--' oo uCJ> w::C :::>u at-a:=> ~d
0 0 z ... w, --'"' o-.. (J)N t-.!-u.. J: CJ)
IGNITION
CONTROL .
MODULE
~==PO=W==ER==M=O=D=E=L=A=M=P~r.-------
r-------CHECK TRANS. LAMP
~=W=IN=T=E=R=M=O=D=E=LA=M=P~~--J---
::c u L1J a: 1-:.:: ::c <( :::> <( u L1J --' a: 1-(!) u al :::> >-L1J L1J 0 --' 1-~ z u a: :5 <( ~ ~ --' al Cl.
Cl. L1J i=
i= L1J ~ z :.:: --' --' <( L1J :5 :::> :::> a: z Cl. ::!: ::!: al 0
0 a: L1J 0 >-0 > --'o --' z (l._ 1-<( L1J Cl.Q 0 > __,...,
SHIFT
CONTROL
BAND APPLY CONTROL
TORQUE CONVERTER CLUTCH CONTROL
LINE PRESSURE CONTROL
SAFETY MODE
ON-BOARD DIAGNOSTIC
SYSTEM
TORQUE MANAGEMENT
ATF WARNING CONTROL
r-ABS CONTROL
L--A-T_F_w_A_R_N_I_N_G_L_A_M_P_...Jr---_l 1---------------'
0 L1J "'a: Bio wVl __,z uw J:Vl L1J >
POWER c): TRANSMIT
.... : OIL PRESSURE
CONTROL
MECHANICAL
...• : SIGNAL
LLJJ: ou ELECTRONIC ot:: -•: ::!:~ SIGNAL
KICK DOWN SWITCH
BRAKE SWITCH
POWER MODE SWITCH
WINTER MODE SWITCH
AIR CONDITIONING
SWITCH
ABS
SIGNAL (ASS CONTROLLER)
ABS: Anti-Lock Brake System
Fig. 7A-4
..
Page 879 of 1928
1. SHIFT CONTROL
The transmission gear is shifted according to the
shift pattern selected by the driver.
~ In shifting gears, the gear ratio is controlled by the
ON/ OFF signal using the 1-2/3-4 shift solenoids and
the 2-3 shift solenoid.
2. BAND APPLY CONTROL
The band apply is controlled when in the 3-2
downshift (engine overrun prevention) and the
garage shift (shock control).
The band
apply solenoid is controlled by the signal
from the Pulse Width Modulation (PWM) to regulate
the
flow of the oil.
3. TORQUE CONVERTER CLUTCH CONTROL
The clutch ON/OFF is controlled by moving the
converter clutch valve through shifting Torque
Converter Clutch
(TCC) solenoid using the ON/OFF
signal.
4. LINE PRESSURE CONTROL
The throttle signal allows the current signal to be
sent
to the force motor. After receiving the current
signal, the force motor activates the pressure
regulator valve to regulate the line pressure.
5. ON-BOARD DIAGNOSTIC SYSTEM
Several malfunction displays can be stored in the
Transmission Control Module (TCM) memory, and
read
out of it afterward.
The serial data lines, which are required for the
testing of the final assembly and the coupling to
other electronic modules, can be regulated by this
function.
6 FAIL-SAFE MECHANISM
If there is a problem in the transmission system, the
TCM will go into a "backup" mode. The vehicle can
still be driven, but the driver must use the gear
lever to shift gears.
7. TORQUE MANAGEMENT CONTROL
The TCM sends the absolute spark advance signal
to the Engine Control Module (ECM) while the
transmission is being shifted, to control the engine
spark timing in compliance with the vehicle running
condition to reduce the shocks caused by the
change of speed.
8. ATF WARNING CONTROL
The oil temperature sensor detects the ATF oil
temperature to control the oil temperature warning,
TCC and the winter mode.
9. ABS CONTROL
When the select lever is at "L" or "R" range, a
signal is sent
to the ABS controller as one of the
ABS control conditions.
AUTOMATIC TRANSMISSION (4L30-E) 7A-7
Page 883 of 1928
AUTOMATIC TRANSMISSION (4L30-E) 7 A-11
FUNCTIONS OF INPUT /OUTPUT COMPONENTS
Components Function
Speed sensor
Senses rotation
of output shaft and feeds the data to Transmission
(fixed
to transmission (T/M)) Control Module (TCM)
Throttle Senses the extent of throttle valve opening and the speed of the throttle
position sensor (TPS) valve lever motion to open the valve and feeds the data to TCM (fed to
(fixed to engine)
Engine Control Module (ECM) also)
I
Brake Switch (SW) Senses whether the driver has pressed the brake pedal or not and feeds
N (fixed
to brake pedal) the
information to TCM
p Kick-down SW (fixed to Senses whether the driver has pushed the accelerator pedal fully or not
u accelerator pedal) and feeds the information to TCM
T Mode
SW (fixed to T/M) Senses the select lever position and feeds the information to TCM
s Power drive SW Senses whether the driver has selected the power mode and feeds the
I (fixed to front console) information to TCM
G T/M
oil temp. sensor
Senses the T/M oil temperature and feeds the data to TCM
N Engine
coolant Senses the engine cooling water temperature and feeds the data to TCM
A temperature
SW (feeds the signal from ECM)
L
Engine speed
signal Feeds the signals monitoring engine speed to TCM from Ignition Control
Module
(fed to ECM also)
Air conditioning Senses whether the air conditioner has been switched on or not and
information feeds the information
to TCM
On-board diagnostic
input By monitoring the Ground (GND), the location of failure is shown on the
T/M
monitor lamp ("CHECK TRANS") by flashing the diagnostic trouble
code
Winter switch
Senses whether the driver has selected the winter mode, and feeds the
(fixed
to front console) information to TCM
Cruise
controller Downshift takes place when Overdrive OFF signal is received from auto
(Overdrive
OFF signal) cruise control unit
Shift
solenoid Selects shift point and gear position suited to the vehicle running con-s 1-2/3-4, 2-3
dition on the basis of TCM output 0 Band apply solenoid
Controls oil flow suited to the vehicle running condition on the basis of L
E TCM output
0 N
Torque
Converter Controls clutch engagement/disengagement suited to the vehicle
u 0 Clutch solenoid running condition on the basis of TCM output
T I Force motor Adjusts the oil pump delivery pressure to line pressure suited to the p D
(Pressure regulator vehicle running condition on the basis of TCM output u valve) T
Power drive mode lamp
Informs the driver whether the vehicle is in power mode or not
s Winter drive mode lamp Informs the driver whether the vehicle is in winter mode or not
I T/M monitor lamp Informs the driver of failure in the system. It also displays the self diagnosis
G
("CHECK TRANS") code.
N Data Link Connector
(DLC) When connected with TECH 1 or tester, can communicate the data for A
L function
check, etc. (fed to ECM also). When TECH 1 is not connected, can
communicate the
signal for torque management with ECM.
Self-diagnosis connector
When short-circuited with the bipolar connector, the T/M monitor lamp
displays
a failure by code.
ATF warning
lamp Lights when ATF oil temperature rises.
ABS signal When the select lever is at "Reverse" or "L" range, sends a signal to the
ABS controller as one of the ABS control conditions.
Page 885 of 1928
AUTOMATIC TRANSMISSION (4L30-E) 7A-13
NORMAL OPERATION OF 1994-95 4L30-E TRANSMISSION
1. TORQUE CONVERTER CLUTCH (TCC)
APPLICATION CONDITIONS:
Engine coolant temperature must be above 70°C
(158°F).
Moreover, TCC is ON in 2nd gear during kick down
operation when engine coolant temperature is
above
70°C (158°F).
Also,
TCC is always ON in 2nd, 3rd & 4th gear when
transmission oil temperature is above 140°C
(284°F).
2. ATF WARNING LAMP
The ATF warning lamp will be constantly on (not
flashing) if the transmission oil temperature is
above
145°C (293°F).
The ATF warning lamp goes off again when the
transmission
oil temperature is below 125°C
(257°F).
3. SPECIAL SHIFT PATTERN WHEN THE
ENGINE IS COLD:
A special shift pattern is activated when the engine
coolant temperature is below 70°C (158°F). (3-4
shifts
for example are delayed for small throttle
openings and will occur a few MPH higher)
4. SHIFT ALTERATION WITH TECH1
DIAGNOSTIC TOOL CONNECTED:
Shifts will be harsh when TECH1 is connected to
TCM: Connection of TECH1 automatically forces
maximum line pressure during shifts only.
Page 892 of 1928
7 A-20 AUTOMATIC TRANSMISSION (4L30-E)
CHECKING TRANSMISSION FLUID
LEVEL AND CONDITION
Checking fluid level and condition (color and odor)
at
regular intervals will provide early diagnosis
information about the transmission. This inform
ation may be used to correct a condition that, if not
detected early, could result in major transmission
repairs.
IMPORTANT: When new, automatic transmission
fluid is red in color. As the vehicle is driven, the
transmission
fluid will begin to look darker in color.
The
color may eventually appear light brown.
A DARK
brown color with burnt odor may indicate
excessive
fluid deterioration and signal a need for
fluid change.
FLUID LEVEL
When adding
or changing fluid, use only DEXRON
®-Ill.
Refer to the Maintenance and Lubrication (Section 0
of this manual) for maintenance information and
servicing
interval.
\f CAUTION: DO NOT OVERFILL
Overfilling will cause foaming, loss ~f fluid,
abnormal shifting and possible damage to
the transmission.
1. Start engine and drive vehicle until normal AfT
oil operating temperature is reached:
NOTE: The automatic transmission fluid level
must be checked with the vehicle at normal
A/T oil operating temperature: 75 TO 85°C
(167 TO 185°F) MEASURED WITH TECH1 SCAN
TOOL.
Temperature will greatly affect transmission
fluid level.
If the vehicle is not at normal AfT oil operating
temperature and the proper checking
procedures are
not followed, the result could
be a false reading of the fluid level indicator
and
an incorrect adjustment of the fluid level.
2. Park vehicle on level ground.
3. Move gear selector to "Park".
4. Apply parking brake and block wheels.
5. Allow vehicle to idle for 3 minutes with all
accessories turned off.
6. Check fluid level with engine running at idle:
Fluid should
be in "HOT" area on AfT dipstick
(Fig. 7A-6).
Check also color and condition (Refer to next
page.)
Hot
Cold ---IIU 0
0
Min
Dipstick
Fig. 7A-6
\f CAUTION:
DO NOT CHECK FLUID LEVEL UNDER THESE
CONDITIONS: •
At high ambient temperature above 30°C
(86°F).
Immediately after driving at sustained highway
speeds.
• In heavy city traffic during hot weather.
If vehicle is towing a trailer.
If the vehicle has been operated under these
conditions,
shut the engine off and allow the
vehicle to "cool" for thirty (30) minutes. After the
cool-down period, restart the vehicle and continue
from step 2 above.
'~I
......