Pressure Check
- Connect a pressure gauge to fuel filter. While driving with engine running at 2400 RPM or more (accelerator pedal fully depressed in low range). Check turbocharging pressure. Standard pressure is 5.8-7.7 psi (.41-.54 kg/cm2 ).
- If pressure is less than specification, first check intake air and exhaust systems and relief valve for leakage. If there is no leakage, replace turbocharger assembly. If pressure is above specification, first check if the actuator hose is disconnected or cracked. If not, replace turbocharger assembly.