Factory Direct Sale Of High-quality Construction Machinery Components Fuel Pump 3921169 For Cummins 6CT Diesel Engine

Chongqing Kyson Machinery Equipment Co., Ltd. is one of the leading manufacturers and suppliers of factory direct sale of high-quality construction machinery components fuel pump 3921169 for cummins 6ct diesel engine in China. With abundant experience, our factory offer high quality products made in China with competitive price. Welcome to place an order.

Common fault symptoms

When the Cummins 6CT fuel pump malfunctions, it usually exhibits the following symptoms:

Difficulty or inability to start

The engine requires multiple ignitions to start, and may even fail to start at all.

Unable to start and the exhaust pipe is smokeless, it may be due to a broken fuel pump gear shaft or damaged drive key.

Difficulty starting and smoke in the exhaust pipe may be related to incorrect timing or internal malfunction of the fuel injection pump.

Decreased operational performance

Insufficient power/weak acceleration: After stepping on the accelerator, the engine speed increases slowly, the vehicle accelerates slowly, and feels "dull" when climbing or overtaking.

Idle instability/drifting: When the engine is idling, the tachometer pointer fluctuates up and down, or there is a regular phenomenon of fluctuating speed (commonly known as "drifting").

Unexpected engine shutdown: The engine suddenly shuts down during operation or during deceleration.

Unable to reach rated speed: Even if the accelerator is pressed to the bottom, the engine speed cannot reach the normal level.

abnormal phenomenon

There is diesel in the engine oil: When pulling out the oil dipstick, it was found that the oil level had increased and become thinner, accompanied by a noticeable diesel smell. This is usually due to leakage of the fuel pump spindle oil seal or seal, causing diesel to seep into the engine oil pan.

Abnormal smoke exhaust: The exhaust pipe emits black smoke (excessive fuel injection), white smoke (possibly due to water ingress or timing issues), or excessive smoke color.

Abnormal noise: Abnormal metal friction or knocking sounds are emitted in the fuel pump area.

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