Isuzu 4JH1 User Manual

6B – 16 ENGINE COOLING
P1010064
Removal
1. Disconnect battery ground cable.
2. Loosen a drain plug to drain EC.
3. Disconnect oil cooler hose on automatic transmission (A/T).
4. Disconnect radiator inlet hose and outlet hose from the
engine.
PTW46BSH000101
5. Remove fan guide(1), clips(2) on both sides and the bottom
lock, then remove lower fan guide(3) with fan shroud(4).
RTW36BMH000101
6. Disconnect the reserve tank hose(6) from radiator.
7. Remove bracket(5).
8. Lift up and remove the radiator assembly with hose, taking
care not to damage the radiator core with a fan blade.

Isuzu 4JH1 Specifications

General

Bore x Stroke	95.4 mm x 104.9 mm
Compression Ratio	18.5:1
Fuel System	Direct injection
Cylinder Configuration	Inline-4
Valves per Cylinder	4
Fuel Type	Diesel
Engine Type	Diesel, four-stroke
Displacement	3.0 liters
Maximum Torque	217 lb-ft (294 Nm) @ 1800 rpm
Oil Capacity	6.5 liters (with filter)