Fault Diagnosis
Symptom : Engine Lacks Power
| Cause | Remedy |
|---|---|
| Worn internal engine components | Repair engine as required |
| Fuel system defective or incorrectly adjusted | Replace or adjust faulty components |
| Low boost | Check wastegate and actuator operation |
| Damaged turbocharger | Determine reason for failure – repair or replace turbo |
| Air filter blocked | Replace air filter |
| Air pipe into turbo restricted | Replace pipe |
| Air pipe from filter to turbo leaking | Check hoses for splits and tighten hose clips |
| Air pipe from turbo to inlet manifold leaking | Check hoses and intercooler for leaks and replace |
| Ignition timing incorrectly adjusted | Check and reset |
| Blockage in exhaust system | Replace silencers or catalytic converter |
| Exhaust gas leaking from manifold | Replace gasket or manifold – check bolts for tightness |
Turbo Noisy
| Cause | Remedy |
|---|---|
| Damaged turbocharger | Determine reason for failure – repair or replace turbo |
| Air pipe into turbo restricted | Replace pipe |
| Air pipe from filter to turbo leaking | Check hoses for splits and tighten hose clips |
| Air pipe from turbo to inlet manifold leaking | Check hoses and intercooler for leaks and replace |
| Carbon build-up in turbo bearing housing | Change engine oil and filter-overhaul or replace turbo |
| Blockage in exhaust system | Replace silencers or catalytic converter |
| Exhaust gas leaking from manifold | Replace gasket or manifold – check bolts for tightness |
Symptom : Excessive Engine Oil Consumption
| Cause | Remedy |
|---|---|
| Worn internal engine components | Repair engine as required |
| Fuel system defective or incorrectly adjusted | Replace or adjust faulty components |
| Damaged turbocharger | Determine reason for failure – repair or replace turbo |
| Air filter blocked | Replace air filter |
| Air pipe into turbo restricted | Replace pipe |
| Incorrect operation of crankcase breather system | Check breather hoses, pipes and one way valves as per manufacturers recommendations |
| Carbon build-up in turbo bearing housing | Change engine oil and filter-overhaul or replace turbo |
| Air pipe from turbo to inlet manifold leaking | Check hoses and intercooler for leaks and replace |
| Restricted oil drain pipe from turbocharger | Replace oil drain pipe |
Blue Exhaust Smoke
| Cause | Remedy |
|---|---|
| Worn internal engine components | Repair engine as required |
| Fuel system defective or incorrectly adjusted | Replace or adjust faulty components |
| Damaged turbocharger | Determine reason for failure – repair or replace turbo |
| Air filter blocked | Replace air filter |
| Air pipe into turbo restricted | Replace pipe |
| Restricted oil drain pipe from turbocharger | Replace oil drain pipe |
| Incorrect operation of crankcase breather system | Check breather hoses, pipes and one way valves as per manufacturers recommendations |
| Carbon build-up in turbo bearing housing | Change engine oil and filter-overhaul or replace turbo |