What are the symptoms of a defective fuel pump?

Seven Signs Your Fuel Pump Is Going Out

• Sputtering Engine. Your fuel pump is telling you something if your engine starts to sputter once you’ve hit the top speed on the highway.
• Overheating Engine.
• Low Fuel Pressure.
• Power Loss.
• Surging Engine.
• Gas Mileage Decrease.
• Dead Engine.

What would cause my fuel pump to not engage?

If the fuel pump is not coming on, and the fuse and relay are good, then it may be possible that there is a problem with the pump or the fuel pump circuit. If it is not then there may be some sort of wiring issue before the fuel pump relay, perhaps a wiring issue or other problem with the ignition switch.

Why is my Cavalier running out of gas?

If you have a full tank of gasoline and your Cavalier just stops running, you could have an issue with the fuel system. Most of the fuel system problems come from the fuel pump located in the gas tank of the Cavalier, but it can be a fuel filter as well.

Where is the fuel pump located on a Cavalier?

Most of the fuel system problems come from the fuel pump located in the gas tank of the Cavalier, but it can be a fuel filter as well. You can troubleshoot the fuel system on the Cavalier with a few tools right at home and save yourself the cost of taking it in to the auto shop.

What happens when a fuel pump relay goes bad?

If the fuel pump relay has an issue while the vehicle is operating it will cut off power to the fuel pump, which will cause the engine to stall. A faulty relay may allow the vehicle to be restarted a short while later, while a completely failed relay will not.

What are the symptoms of a bad fuel pump?

The engine may still crank when the key is turned, however it will not be able to start due to lack of fuel. This symptom can also be caused by a wide variety of other issues, so having the vehicle properly diagnosed is highly recommended. 3. No noise from the fuel pump