What are the reasons for the increased fuel consumption of the CAT 336 excavator engine

1、 Insufficient engine power

1. Engine aging: With the increase of usage time, the internal parts of the engine wear severely, resulting in a decrease in power and an increase in fuel consumption.

2. Air filter blockage: Air filter blockage can affect air circulation, leading to insufficient engine intake, incomplete combustion, and increased fuel consumption.

2、 Hydraulic system malfunction

1. High hydraulic oil temperature: High hydraulic oil temperature can reduce the efficiency of the hydraulic system, and the engine needs to consume more fuel to maintain the normal operation of the hydraulic system.

2. Hydraulic pump failure: Hydraulic pump failure can cause insufficient pressure in the hydraulic system, and the engine needs to consume more fuel to replenish pressure.

3、 Fuel system malfunction

1. Fuel pipeline blockage: Fuel pipeline blockage can lead to poor fuel supply, engine malfunction, and increased fuel consumption.

2. Fuel filter blockage: Fuel filter blockage can affect the cleanliness of the fuel, causing the engine to malfunction and increasing fuel consumption.

4、 Other reasons

1. Improper operation: Improper operation by the driver can lead to excessive engine load and increased fuel consumption.

2. Improper maintenance: Improper maintenance of the engine and hydraulic system can increase the failure rate and fuel consumption.

3. Environmental factors: Poor working conditions, long-term overload work, and other environmental factors can also increase the failure rate of engines and hydraulic systems, and fuel consumption.

In summary, the significant increase in fuel consumption of the CAT 336 excavator engine may be due to a combination of multiple factors. To solve this problem, we need to conduct a comprehensive inspection and maintenance of the engine and hydraulic system to ensure their normal operation. At the same time, drivers also need to follow the operating procedures to avoid improper operation that may increase fuel consumption.

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