Fuel pump failures can be caused by electrical faults, old age (wear) or fuel contaminants (dirt, moisture or bad gas). Fuel pump failures often occur without warning. Fuel pump failures can be caused by electrical faults, old age (wear) or fuel contaminants (dirt, moisture or bad gas).

What kills a fuel pump?

Fuel Pump Failures Rust, dirt, or debris in the gas tank can kill a fuel pump very quickly. Rust occurs on older steel tanks while after 8-10 years, plastic tanks start to break down. The fuel filter does almost nothing to prevent debris from entering the fuel pump.

What are the signs of fuel pump failure?

• Whining Noise From the Fuel Tank. If you notice a whining noise coming from the location of your fuel tank, the fuel pump is probably beginning to fail. …
• The Engine Sputters or Surges. …
• Trouble Starting the Car. …
• Loss of Power Under Load. …
• Reduced Gas Mileage. …
• Stalling at High Temperatures.