Here car-auto-repair.com show you guide on how to remove and install intake throttle valve for ISUZU Euro 4 N series truck 4JJ1 engine.If you want more about ISUZU truck cases,please refer to::ISUZU Trouble Repair.
1.Remove the boost sensor connector(1) and harness clip.
2.Remove the air intake duct and hose.
Remove the duct on the intercooler side.
Remove the duct from the intake throttle valve with the hose attached.
3.Disconnect the intake throttle valve harness connector.
Make sure to hold the connector portion for removal.
Remove the rear cover with the connector attached.
Do not remove the rear cover separately.
1 Rear cover 2 Connector portion
4.Remove the intake throttle valve (2).
2 Throttle valve
1.Install the intake throttle valve.
Install the gasket and intake throttle valve, and tighten at the specified torque.
Tightening torque:10 N-m(1.0kg-m/87 lb-in)
2.Connect the intake throttle valve harness connector.
3.Install the air intake duct and hose.
NOTE: Firmly insert the hose without any twisting or misalignment, and tighten the clamp to the specified torque.
Install the duct and hose between the intake throttle valve and intercooler.
Use a new hose clamp, align it with the marking.
Tightening torque:8N-m(0.8 kg-m/69 lb-in)
4.Install the connector(1) of the boost sensor and the harness clip.