This article mainly introduces the disassembly steps of the Isuzu LG4JH-WE-1111 engine 4HJ1 n series intake throttle valve
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Removal
1. Disconnect the battery cable negative terminal.
2. Remove the engine cover.(Non-tilt cab model only)
3. Remove the driver seat.(Non-tilt cab model only)
Refer to “FRAME AND CAB”Section 2.
4. Remove the change lever assembly.(Non-tit cab model only)
Refer to “Manual Transmission”in Section 7B.
5. Remove the parking brake lever assembly.(Non-
tilt cab model only)
Refer to “BRAKES”in Section 5C.
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6. Remove the sub engine cover.(Non-tilt cab model only)
7. Remove the floor support cover.(Non-tilt cab model only)
8. Disconnect the boost sensor connector.(Euro4
specification)
Legend
1.Boost sensor connector
9.Remove the air intake pipe and hoses.
.Remove the pipe from the bracket.
·Remove the hose from the intercooler with the pipe attached.
.Remove the hose from the intake throttle valve with the pipe attached.
10.Disconnect the intake throttle valve harness connector.
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11.Remove the intake throttle valve.
