Isuzu A-4BG1T - Overheating Issues

I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
II
II
I
I
I
I
I
II
II
II
II
II
I
I
I
I
I
I
I
I
I
TROUBLESHOOTING “‘12-15
Checkpoint
Trouble Cause
Remedy
Cooling water
OK
Insufficient cooling water
Replenish the cooling water
Fan belt
!
1
NG
Fan belt loose or cracked causing
NG
slippage
Replace the fan belt
OK
t
1
Radiator
NG
Defective radiator cap or clogged
NG Replace the radiator cap or clean
.
radiator core
the radiator core
. -
OK 1
.
Repair or replace the water pump
Water pump
NG
Defective water pump
.
4
OK
1
t
Cylinder head and cylinder body
NG
Defective sealing cap resulting in
NG
sealing cap
water leakage
Replace the sealing cap
OK
+
Thermostat
NG
Defective thermostat
NG
Replace the thermostat
i
I
I
OK
.
Cooling system
I
NG Cooling system clogged by
NG
Clean the foreign material from
foreign material
the cooling system
A
Corttinued on the next page