Excessive exhaust smoke
| Cause | Correction | |
| Engine running too cold (white smoke) |
 |
Refer to Troubleshooting Logic for coolant temperature below normal. |
 |
||
| Inadequate intake air |
|
Inspect/change air cleaner. Look for other restrictions. |
|
||
| Air leak between the turbocharger and the intake manifold |
|
Check/correct leaks in the air crossover tube, hoses or through holes in the manifold cover. |
|
||
| Exhaust leak at the manifold or turbocharger |
|
Check/correct leaks in the manifold or turbocharger gaskets. Look for a cracked manifold. |
|
||
| Malfunctioning turbocharger |
|
Inspect/replace turbocharger. |
|
||
| More than one sealing washer under an injector |
|
Remove extra washer. |
|
||
| Malfunctioning injectors |
|
Replace injectors. |