2007 ISUZU KB P190 Workshop Repair Manual

relay jump cable fuel additives seat memory spark plugs spare tire

Page 1529 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6B-6 ENGINE COOLING (4JK1/4JJ1)
Diagnosis
Engine Cooling Trouble
Condition Possible Cause Correction
Low Engine Coolant level Replenish
Thermo meter unit faulty Replace
Faulty thermostat Repla

Page 1530 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE COOLING (4JK1/4JJ1) 6B-7
Draining and Refilling Cooling System
Before draining the cooling system, inspect the system
and perform any necessary service to ensure that it is
clean, does not

ENGINE COOLING (4JK1/4JJ1) 6B-7
Draining and Refilling Cooling System
Before draining the cooling system, inspect the system
and perform any necessary service to ensure that it is
clean, does not leak and is in proper working order.
The engine coolant (EC) level should be between the
“MIN" and “MAX" lines of the reserve tank when the
engine is cold. If low, check for leakage and add EC up
to the “MAX" line.
There should not be any excessive deposit of rust o
r
scales around the radiator cap or radiator filler hole, and
the EC should also be free from oil.
Replace the EC if excessively dirty.

1. Remove the radiator skid plate.
2. Completely drain the cooling system by opening the drain plug at the bottom of the radiator.

RTW 56BSH000301
3. Remove the radiator cap.
WARNING:
To avoid the danger of being burned, do not
remove the cap while the engine and radiator are
still hot. Scalding fluid and steam can be blown out
under pressure.
4. Disconnect all hoses from the EC reserve tank.
Scrub and clean the inside of the reserve tank with soap and water. Flush it well with clean water,
then drain it. Install the reserve tank and hoses.

5. Refill the cooling system with the EC using a
solution that is at least 50 percent antifreeze.

Procedure for filling with coolant (in case of full change).
• Make sure that the engine is cool.
• Open radiator cap and pour coolant up to fille
r
neck.
• Pour coolant into reservoir tank up to “MAX" line.
• Tighten radiator cap and start the engine. Afte
r
idling for 2 to 3 minutes, stop the engine and
reopen the radiator cap. If the water level is lower,
replenish.
WARNING:
When the coolant is heated to a high temperature,
be sure not to loosen or remove the radiator cap.
Otherwise you might get scalded by hot vapor o
r
boiling water. To open the radiator cap, put a piece
of thick cloth on the cap and loosen the cap slowly
to reduce the pressure when the coolant has
become cooler.
• After tightening the radiator cap, warm up the
engine at about 2000 rpm. Set heater adjustment
to the highest temperature position, and let the
coolant circulate also into heater water system.
• Check to see the thermostat has opened through
the needle position of the water thermometer,
conduct a 5–minute idling again and stop the
engine.
• W hen the engine has been cooled, check fille
r
neck for water level and replenish if required.
Should extreme shortage of coolant be found,
check the cooling system and reservoir tank hose
for leakage.
• Pour coolant into the reservoir tank up to “MAX"
line.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 1531 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6B-8 ENGINE COOLING (4JK1/4JJ1)
Water Pump
Read this Section carefully before performing any
removal and installation procedure. This Section gives
you important points as well as the order of ope

Page 1532 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE COOLING (4JK1/4JJ1) 6B-9
Inspection and Repair
The water pump is not disassembled type.
Make necessary parts replacement if extreme wear o
r
damage is found during inspection. Should any o

Page 1533 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6B-10 ENGINE COOLING (4JK1/4JJ1)
5. Radiator Upper Hose.

RTW 56FSH000101
a. Connect the radiator upper hose to the water
outlet pipe.
b. The knob of clamp shall be directed to hor

Page 1534 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE COOLING (4JK1/4JJ1) 6B-11
Thermostat
Read this Section carefully before performing any
removal and installation procedure. This Section gives
you important points as well as the order of op

Page 1535 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6B-12 ENGINE COOLING (4JK1/4JJ1)

MFW 41CSH001401
Legend
1. W ooden Piece
2. Agitating Rod

Installation
1. Thermostat
Install the thermostat.
Mount the jiggle valv

Page 1536 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE COOLING (4JK1/4JJ1) 6B-13
Radiator
Radiator and Associated Parts

RTW 76BLF000101
Legend
1. Reserve Tank Hose
2. Reserve Tank
3. Radiator Hose
4. Fan Guide; Lower
5. Fa

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