Page 1039 of 6020
Engine Control System (4JH1) 6E-5
Schematic And Routing Diagrams
Vacuum Hose Routing Diagram
Normal Altitude Spec
RTW 66EMF001001
Legend
1. Vacuum Pump
2. Blue Stripe Vacuum Hose
3. EGR Solenoid Valve
4. W hite Stripe Vacuum Hose
5. Intake Duct
6. Yellow Stripe Vacuum Hose
7. EGR Valve
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ISUZU KB P190 2007
Page 1040 of 6020
6E-6 Engine Control System (4JH1)
High Altitude Spec
RTW 66EMF001101
Legend
1. Vacuum Pump
2. W hite Stripe Vacuum Hose
3. EGR Solenoid Valve
4. EGR Valve
5. W hite Stripe Vacuum Hose
6. Vacuum Regulating Valve
7. Port S
8. Port Z
9. Blue Stripe Vacuum Hose
10. Turbocharger Solenoid Valve
11. W hite Stripe Vacuum Hose
12. Yellow Stripe Vacuum Hose
13. Vacuum Pressure Sensor
14. Turbocharger
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ISUZU KB P190 2007
Page 1372 of 6020

6A-12 ENGINE MECHANICAL (4JK1/4JJ1)
Turbocharger Troubleshooting
Condition Possible Cause Correction
Air leakage from intake pipe rubber
hose Repair
Air leakage from intake cover Repair
Clogged intercooler cooling section Clean
Clogged air cleaner element Clean or replace
Intake throttle valve stuck
Repair or replace
Turbine and housing contact
(Interference) Replace
Excessive carbon deposit near
turbine exhaust port that interferes
with turbine Clean or repair
Rough turbine shaft rotation Repair or replace
Engine has less than normal power
Damaged turbine blade Repair or replace
Oil leakage from turbocharger oil
seal Repair or replace
Clogged turbocharger oil return
pipe Repair
Clogged center housing oil
passages Repair or replace
Blue exhaust smoke
Engine oil deterioration Change engine oil
Gas leakage from intake or
exhaust system Repair
Turbine and housing contact
(Interference) Repair or replace
Damaged turbine blade
Replace
Noisy turbocharger operation
Turbine shaft bearing abrasion or
scoring Repair or replace
Engine oil deterioration
Change engine oil
Clogged turbocharger oil feed pipe Repair
Excessive rotating part wear
Low engine oil pressure Repair
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Page 1452 of 6020
6A-92 ENGINE MECHANICAL (4JK1/4JJ1)
16. Install the chain guide bolt from cylinder head.
Tighten the bolt to the specified torque.
Tightening torque: 25 N ⋅
⋅⋅
⋅
m (2.5 kg ⋅
⋅⋅
⋅
m/18 lb ft)
RTW 56ASH019501
17. Install the tension lever.
18. Rotate the crankshaft to make the No.1 cylinde
r
meet the compression top dead center (TDC).
RTW 76ASH001301
Legend
1. TDC
19. Install the timing chain with idle gear D.
• Apply the engine oil bolt thread and seat.
Tightening torque : 59 N ⋅
⋅⋅
⋅
m (6.0 kg ⋅
⋅⋅
⋅
m/43 lb ft)
RTW 56ASH021801
• Align the timing marks at two locations as
shown.
RTW 56ASH020301
Legend
1. Timing Chain
2. Timing Mark
3. Blue Link
4. Yellow Link
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ISUZU KB P190 2007
Page 1455 of 6020

ENGINE MECHANICAL (4JK1/4JJ1) 6A-95
RTW 56ASH020301
Legend
1. Timing Chain
2. Timing Mark
3. Blue Link
4. Yellow Link
29. Apply liquid gasket (ThreeBond TB-1207C or
equivalent) to timing chain cover upper (1).
• Attach cover within 5minutes after the
application of gasket.
RTW 56CSH002101
30. Install the timing chain cover upper (1).
Tighten the bolt to the specified torque. •
Apply loctite #262 or equivalent to the bolt and
stud threads of cylinder side head side (2).
Tightening torque: 25 N ⋅
⋅⋅
⋅
m (2.5 kg ⋅
⋅⋅
⋅
m / 18 lb ft)
RTW 76CSH001201
31. Apply liquid gasket (ThreeBond TB-1207C or
equivalent) to the timing chain cover lower (1).
• Attach the cover within 5 minutes of applying
the liquid gasket.
RTW 56CSH002301
32. Install the timing chain cover lower.
Tighten the bolts and nuts to the specified torque.
Tightening torque: 10 N ⋅
⋅⋅
⋅
m (1.0 kg ⋅
⋅⋅
⋅
m / 87 lb in)
33. Install the noise cover to the timing chain cove
r
lower.
Tighten the bolts to the specified torque.
Tightening torque: 10 N ⋅
⋅⋅
⋅
m (1.0 kg ⋅
⋅⋅
⋅
m / 87 lb in)
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Page 1550 of 6020
FUEL SYSTEM (4JK1/4JJ1) 6C-9
Engine does not stop
Condition Possible Cause Correction
Engine does not stop Defective engine control system Diagnose the engine control system.
Exhaust gas is blue or black
Condition Possible Cause Correction
Exhaust gas is blue or black. Reduction in injection-valve opening
pressure or defective atomizing
status Replace the fuel injector.
Engine control system malfunction System diagnosis.
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ISUZU KB P190 2007
Page 2098 of 6020

6A-84 ENGINE MECHANICAL (C24SE)
Crankshaft, Cylinder Block (continued)
Crankshaft jounal
I, II, IV, V Guide
bearing III Con-rod journal
1 to 4 Con-rod width
Diameter
mm Widtht
mm Diameter
mm Width
mm
mm
Normal size
Bearing journal and colour code from 57.9820 green
to 57.9885
> 57.9885 brown
to 57.9950
25.900
25.850
48.988
48.970
26.580
26.460
26.390
26.338
Bearing shell identification mark
Colour code and embossed Crankshaft bearing
I, II, IV, V Guide bearing
III Con-rod bearing
1 to 4
Identification mark
brown-662N
green-663N brown-655N
green-658N
Crankshaft
jounal
I, II, IV, V Guide
bearing III Con-rod journal
1 to 4 Con-rod width
Diameter
mm Widtht
mm Diameter
mm Width
mm
mm
0.25mm Undersize for Production and Customer Service
Bearing journal and colour code from 57.7320 green/
to 57.7385 blue
> 57.7385 brown/
to 57.7450 blue
26.100
26.050
48.738
48.720
26.580
26.460
Bearing shell identification mark Colour code and embossed Crankshaft bearing
I, II, IV, V Guide bearing
III Con-rod bearing
1 to 4
Identification mark
brown/blue-664 A
green/blue-655 A brown/blue-657 A
green/blue-658 A
Crankshaft jounal
I, II, IV, V Guide
bearing III Con-rod journal
1 to 4 Con-rod width
Diameter
mm Widtht
mm Diameter
mm Width
mm
mm
0.50mm Undersize Customer Service
Bearing journal and colour code from 57.4820 green/
to 57.4885 blue
> 57.4885 brown/
to 57.4950 blue
26.300
26.250
48.488
48.470
26.580
26.460
Bearing shell identification mark
Colour code and embossed Crankshaft bearing
I, II, IV, V Guide bearing
III Con-rod bearing
1 to 4
Identification mark
brown/white-666 B
green/white-667 B brown/blue-659 B
green/blue-660 B
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ISUZU KB P190 2007
Page 2141 of 6020

6D1-4 ENGINE ELECTRICAL
Battery Charging
Observe the following safety precautions when charging the
battery:
1. Never attempt to charge the battery when the fluid level is
below the lower level line on the side of the battery. In this
case, the battery must be replaced.
2. Pay close attention to the battery during charging procedure.
Battery charging should be discontinued or the rate o
f
charge reduced if the battery feels hot to the touch.
Battery charging should be discontinued or the rate o
f
charge reduced if the battery begins to gas or spew
electrolyte from the vent holes.
3. In order to more easily view the hydrometer blue dot or ring, it may be necessary to jiggle or tilt the battery.
4. Battery temperature can have a great effect on batter
y
charging capacity.
5. The sealed battery used on this vehicle may be either quick charged or slow charged in the same manner as othe
r
batteries.
W hichever method you decide to use, be sure that you completely charge the battery. Never partially charge the
battery.
Jump Starting
Jump Starting with an Auxiliary (Booster)
Battery
CAUTION: Never push or tow the vehicle in an attempt to
start it. Serious damage to the emission system as well as
other vehicle parts will result.
Treat both the discharged battery and the booster battery
with great care when using jumper cables.
Carefully follow the jump starting procedure, being careful
at all times to avoid sparking.
WARNING: FAILURE TO CAREFULLY FOLLOW THE JUMP
STARTING PROCEDURE COULD RESULT IN THE
FOLLOWING:
1. Serous personal injury, particularly to your eyes.
2. Property damage from a battery explosion, battery acid, o
r
an electrical fire.
3. Damage to the electronic components of one or both vehicles particularly.
Never expose the battery to an open flame or electrical spark.
Gas generated by the battery may catch fire or explode.
Remove any rings, watches, or other jewelry before working
around the battery. Protect your eyes by wearing an approved
set of goggles.
Never allow battery fluid to come in contact with your eyes or
skin.
Never allow battery fluid to come in contact with fabrics or
painted surfaces.
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ISUZU KB P190 2007