Typically, the fuel pump is located in the fuel tank, although the exact location can vary depending on the make and model of the vehicle. For example most older car used manual fuel pump that located beside the engine cylinder while some car like Mercedes Benz fuel pump located under the car body and other car like Golf 3 have two fuel pump one was located under the car body and the other one was mounted inside the fuel tank. The fuel pump is a crucial component in a vehicle’s fuel system, responsible for delivering fuel from the gas tank to the engine.

The fuel pump is one of the simplest and most rugged parts of the fuel system. They are usually built to last and are tough because they are located in a hard-to-reach place in your fuel tank. In most cases, you can expect your fuel pump to last about 100,000 miles before it needs to be replaced, but most people never need to replace their fuel pumps. Fuel pumps have been known to last over 200,000 miles in some cases. However, this number can change depending on the circumstances and conditions you drive in.

1. High Temperature.

2. Car Not Starting or Struggling with Car Starts

3. The Car Sputters or Dies while Driving

4. Losing Power during Heavy Loads or Inclines

5. Poor Fuel Efficiency

6. Recognizing Unusual Fuel Tank Noises

7. Car Stalling at High Temperatures

8. The Vehicle Surges while Driving.

9. Failure to Meet Emission Standards

10. Long Cranking Time

11. Engine Misfire

12. Can't accelerate normally

Step 1: Without starting the engine, turn the key to the "Run" position and listen for a buzzing sound from the fuel pump. If you can hear it, this indicates that it is turning on.

Step 2: Disconnect the electrical connector. If the pump does not turn on, remove the electrical connector on the pump, connect the fuel pump circuit with special wiring, turn on the ignition switch, and the engine will not start. If the fuel pump works, it means there is no problem with the pump.

Step 3: Check fuel pressure. Start the car and let it idle. Install a fuel pressure gauge, run the pump, and note the pressure reading. Make sure the pressure is correct. The fuel pump may be defective if it does not reach the required pressure. Between 30 and 80 PSI is required for a typical port-injected vehicle.

Step 4: Test fuel delivery. Use a special gauge (such as a beaker) to measure if the oil pump's oil delivery and oil return are normal.

Several factors affect the actual cost of replacing a fuel pump.

Labor costs

Parts to replace the fuel pump

The make and model of your car and how old it is

The type of fuel pump you have and its location

Typically, the cost to replace a fuel pump is approximately $300 to $1,200. Labor rates are estimated between $200 and $400, if you decide to go with a professional, the price will be higher, can be more than $500. Then the parts cost of the fuel pump is between $75 and $600. Additional costs can add up quickly if you break down in a remote area and need a tow.