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2025-10-14 07:39:32 -

Cummins Black Smoke: Causes and How to Fix It

Cummins Black Smoke: Causes and How to Fix It If you’ve noticed black smoke coming from your Cummins diesel engine, you’re not alone. Black smoke is a common sign that the engine is running too rich — burning more fuel than it can efficiently combust. Understanding the causes and solutions can help prevent long-term engine damage and restore optimal performance. Common...

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