• Remove the bolts, loosen the clamp securing the air hose and turbocharger and remove the air hose. • Turn the compressor wheel by turning the shaft tip with fingers. Check that the compressor wheel rotate smoothly without touching the compressor. • If any abnormality is found, disassemble and inspect the turbocharger. (See “TURBOCHARGER”.)
• Inspect the turbocharger visually. If there is any trace of gas leakage or cracks, replace the turbocharger. (See “TURBOCHARGER”.) • Check for looseness in the turbocharger mounting bolts and nuts. If there is looseness, tighten the bolts and nuts to the specified torque. (See “TURBOCHARGER”.)
• Inspect the exhaust manifold visually. If there is any trace of gas leakage or cracks, replace the exhaust manifold. (See “EXHAUST MANIFOLD”.) • Check for looseness in the exhaust manifold mounting nuts. If there is looseness, tighten the nuts to the specified torque. (See “EXHAUST MANIFOLD”.)
• Check for looseness in the intake manifold and air inlet pipe mounting bolts and nuts. If there is looseness, tighten the bolts and nuts to the specified torque. (See “INTAKE MANIFOLD”.)
[Cleaning] • Blow a jet of compressed air at a pressure not higher than 685 kPa {7 kgf/cm2} against the inside surfaces of the element. • Move the compressed air jet up and down along all pleats of the filter paper element. [Inspection] • Shine some electric light inside the element. • Replace the element… Read More »
1.1 Preparation • Remove the safety plug from the high voltage battery box while referring to Gr18 HEV System. (Be sure to observe the regulations of your country or region regarding the qualifications or trainings required for servicing the high-voltage equipment.) • Shift the transmission to neutral. • Hold the steering wheel in neutral position.… Read More »
5.1 Overview • The diesel particulate filter regeneration control system burns and removes the particulate matter (PM) in the ceramic filter using high temperature exhaust gas to prevent excessive accumulation of particulate matter in the ceramic filter. Thus the diesel particulate filter is regenerated. • The regeneration is divided into two types. One is the… Read More »
4.1 Overview • The exhaust shutter is used for controlling the diesel particulate filter regeneration and facilitating the warming up of the exhaust brake. 4.2 Operation • The butterfly valve operates in interlocking with the lever movement. (1) When the butterfly valve is fully opened (exhaust shutter is not operating) • The spring in the… Read More »
3.1 General description • In the turbocharger control system, various engine-related information (engine speed, coolant temperature, accelerator position) and driving status are collected by the relevant sensors and are sent to the engine electronic control unit and turbocharger electronic drive unit which then control the engine based on the information received. • The turbocharger actuator… Read More »