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2004 5.9 Cummings turbo diesel 2500 4x4 heavy duty start when cold need a shot of starting fluid?

Possible problems that require expert diagnosis:

- Glow plugs that don't work can damage an engine

- Faulty injector

- Air filter restriction

- Fuel filter restriction

- Low compression - may indicate more serious and severe engine issues

- Leaking fuel line and low fuel pressure (can have several root causes).