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