What to Do When the Car Fuel Pump Makes a Loud Humming Noise?

1 Answers
StCecilia
07/25/25 3:15pm
When the fuel pump makes a loud humming noise, it is mainly due to a problem with the fuel pump. It is recommended to replace the fuel pump. Here are the relevant details: 1. The function of the fuel pump is to draw gasoline from the fuel tank and pressurize it through the pipeline and fuel filter into the float chamber of the carburetor. It is precisely because of the fuel pump that the fuel tank can be placed at the rear of the car, far from the engine, and lower than the engine. 2. If it is confirmed that no other components are operating and the noise is indeed coming from the fuel pump, it indicates that the fuel pump has a temporary sticking phenomenon. The fuel pump relies on the gasoline itself for heat dissipation. If the fuel tank frequently has a low fuel level, it can cause damage to the fuel pump.
Was this review help?
1
1
Share
More Forum Discussions

How to Make a Right Angle Turn in Subject Two of the Driving Test?

Here is the method for making a right angle turn in Subject Two: 1. Slow down before entering the right angle turn. If the speed is too fast, lightly apply the brake without stopping the car completely, as stopping during the test will result in disqualification. Pay close attention to maintaining a slow speed and avoid stopping midway. 2. Before entering the turn, position the car closer to the opposite side of the turn. For a right turn during the test, keep the car near the left side of the lane without crossing the left line. 3. As the car slowly enters the right angle area, focus on the right side mirror. When you see the right side mirror just pass the right angle line by 2 to 3 centimeters, quickly turn the steering wheel all the way to the right. 4. Once the right tire has passed the right angle, begin straightening the steering wheel and focus on the road ahead.
17
4
Share

How many kilometers should an automatic transmission car drive before changing the transmission oil?

Automatic transmission oil should be replaced every 2 years or 60,000 kilometers. The replacement interval for transmission oil varies among different vehicle models, so it's important to refer to the car's user manual for specific guidelines. Relevant information is as follows: 1. When the car is in operation, the transmission oil is exposed to high temperatures. Prolonged exposure to high-speed and high-temperature conditions can cause the transmission oil to deteriorate and evaporate. If not replaced in time, deteriorated transmission oil can accelerate the wear of mechanical components and, in severe cases, lead to transmission failure. 2. Failure to replace the transmission oil for an extended period can result in a lack of power when starting the car. Additionally, the transmission may experience slipping during driving.
11
3
Share

What are the causes of insufficient cylinder pressure?

The main causes of insufficient pressure: air leakage between the cylinder head and the cylinder, air leakage between the spark plug sealing gasket and the cylinder head or a leaking pressure relief valve, air leakage in the crankcase, and air leakage caused by severe wear between the piston rings and the cylinder or stuck piston rings. The diagnostic method can be carried out in the following order: 1. Air leakage between the cylinder head and the cylinder: Turn the engine by stepping on it, and carefully observe whether there is oil foam at the joint surface between the cylinder head and the cylinder. If there is oil foam, it indicates air leakage at the cylinder head gasket. At this time, check whether the tightening nuts on the cylinder head are tightened. 2. If there is any looseness, tighten them evenly. If oil foam still appears after tightening, the cylinder head should be removed to check whether the cylinder gasket is damaged. If it is damaged, replace it with a new one.
10
2
Share

Where is the heater switch on the old Buick GL8?

The heater switch on the old Buick GL8 is located next to the gear shift lever. There are two ways to turn on the heater in the Buick GL8: manual and automatic. Manual air conditioning: Turn on the air conditioning, find the temperature adjustment button, and set it to the red zone for the heating mode. Adjust the air outlet direction to blow forward and at the feet. Automatic air conditioning: Turn on the air conditioning system and set the temperature to the desired level. Activate the AUTO function or select the appropriate air outlet direction. Pressing AUTO allows the system to automatically control fan speed, air outlet mode, air conditioning mode, and internal circulation to heat or cool the cabin air to the desired temperature.
15
3
Share

What is the warranty period for the BYD Tang?

The BYD Tang's electric warranty policy is 8 years or 150,000 kilometers. It uses a ternary lithium battery, with the battery cell having a lifetime warranty. BYD is currently the only new energy vehicle manufacturer in the world to offer a true lifetime warranty on battery cells. Common parts warranty periods: Spark plugs: Warranty period is 2 years or 20,000 kilometers. Air filter: Warranty period is 1 year or 8,000 kilometers. Fuel filter: Warranty period is 1 year or 8,000 kilometers. Oil filter: Warranty period is 1 year or 8,000 kilometers. Battery: Warranty period is 2 years or 20,000 kilometers. Tires: Warranty period is 6 months or 5,000 kilometers.
14
5
Share

What is the difference between 1.6L and 1.6T?

There are differences between 1.6L and 1.6T in cars as follows: 1. Different nature: 1.6L refers to a 1.6-liter displacement, where L stands for Long (extended version), while 1.6T is a 1.6L engine equipped with a turbocharger. 2. Different fuel consumption: 1.6L has lower fuel consumption. 3. Different power: 1.6T has greater power and stronger performance; typically, a turbocharger can increase the base power by about 10%-30%, and some can even exceed 50%. 1.6T can deliver higher power and torque, even comparable to a 2.4L naturally aspirated engine. 4. Different maintenance costs: 1.6T has higher maintenance costs.
9
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.