Troubleshooting assistant
Pick a problem area, choose the symptom, then follow the remedy links or step-by-step TSRM procedure.
Turbocharger System
Insufficient acceleration / lack of power / excessive fuel consumption
Turbocharger troubleshooting from TC-5.
Possible causes and remedies
Possible cause
Turbocharging pressure too lowRemedy
Check turbocharging pressure.
M/T: 0.39–0.53 kg/cm² (5.5–7.5 psi, 38–52 kPa)
A/T: 0.34–0.42 kg/cm² (4.8–6.0 psi, 33–41 kPa)
If the pressure is below specification, begin diagnosis from item 2.
M/T: 0.39–0.53 kg/cm² (5.5–7.5 psi, 38–52 kPa)
A/T: 0.34–0.42 kg/cm² (4.8–6.0 psi, 33–41 kPa)
If the pressure is below specification, begin diagnosis from item 2.
Possible cause
Restricted intake air systemRemedy
Check intake air system and repair or replace parts as necessary.
Possible cause
Leak in intake air systemRemedy
Check intake air system and repair or replace parts as necessary.
Possible cause
Restricted exhaust systemRemedy
Check exhaust system and repair or replace parts as necessary.
Possible cause
Leak in exhaust systemRemedy
Check exhaust system and repair or replace parts as necessary.
Possible cause
Erratic turbocharger operationRemedy
Check rotation of impeller wheel. If it does not turn or turns with a heavy drag, replace the turbocharger assembly.
Check plays of turbine shaft. (See page TC-14)
Axial play: 0.13 mm (0.0051 in.) or less
Radial play: 0.18 mm (0.0071 in.) or less
If not within specification, replace the turbocharger assembly.
Check plays of turbine shaft. (See page TC-14)
Axial play: 0.13 mm (0.0051 in.) or less
Radial play: 0.18 mm (0.0071 in.) or less
If not within specification, replace the turbocharger assembly.