What Are the Causes of Difficult Starting in a Hot Diesel Engine?

1 Answers
DeFinn
07/29/25 8:35pm
Difficult starting in a hot diesel engine is related to faults in various components. Below are detailed causes and solutions: 1. Air or moisture in the fuel system: If the fuel pipe connections are loose or the inlet pipe is worn from friction, air can enter the fuel system. Additionally, diesel fuel contains a certain amount of moisture. When there is excessive air or moisture, it can affect the normal starting of the diesel engine. Solution: Inspect all pipes to check for loose connections. Tighten any leaking parts and promptly remove air from the pipes. 2. Abnormal diesel supply: No fuel in the tank, the fuel inlet switch is not opened, or the tank vent is blocked by dust or other contaminants. Solution: Refill with sufficient diesel and open the fuel tank switch. 3. Clogged fuel pipe or diesel filter: A bent fuel pipe or a long-uncleaned filter screen in the pipe connections can also cause fuel blockage. Solution: Remove any blockages in the fuel pipe and clean the diesel filter by dismantling it.
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