How to Check if Water Has Entered the Fuel Tank?

1 Answers
JuliaFitz
07/29/25 10:59pm
Check if the color of the engine oil is abnormal. If the engine oil turns milky white, it indicates that water has entered the fuel tank or engine. Below is an introduction to faults related to water entering the fuel tank, fuel tank, or engine crankcase: 1. Water in the fuel tank can cause rust, corrosion, and aging of the tank. If there is water in the fuel system, it can lead to decreased engine power, increased fuel consumption, vehicle shaking, and difficulty starting in winter. Symptoms of water in the fuel tank include difficulty starting, engine backfire, high idle speed, or insufficient power. 2. If water enters the fuel tank, in mild cases, the vehicle may be hard to start and lack acceleration power after starting; in severe cases, the vehicle may not start at all. 3. If water enters the engine crankcase, in mild cases, it can cause abnormal lubrication noise, reducing the service life of components such as crankshaft bearings, connecting rod bearings, camshaft bearings, and valve guides in the valve train. In severe cases, it can lead to crankshaft seizure, connecting rod breakage, or cylinder block cracking.
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