Fuel Pump

Pumps gasoline or diesel from the fuel tank through the fuel lines and filter to the engine's fuel injectors at the pressure required for proper atomization and combustion.

$400 – $1,000

Total Cost

As needed (typically 100,000+ miles)

Replace Interval

Hard

DIY Difficulty

Do Not Drive

If It Fails

Overview

The fuel pump delivers fuel from the tank to the engine at the correct pressure. Most modern cars use an electric fuel pump mounted inside the fuel tank. When it fails, the engine won't start or will stall while driving.

Parts Cost

$100 – $400

Labor Cost

$200 – $500

Failure Symptoms

Engine cranks but won't start

High

Engine stalls while driving (especially at high speed or uphill)

Critical

Loss of power under acceleration

Moderate

Whining noise from the fuel tank area

Moderate

Sputtering at high speeds

Moderate

Engine surging

Moderate

Warning Signs to Watch

Engine hesitates or sputters under load
Difficulty starting when tank is below 1/4
Whining noise from rear of vehicle
Intermittent stalling

Common Causes of Failure

1Normal wear of the pump motor
2Running the tank below 1/4 frequently (pump uses fuel for cooling/lubrication)
3Contaminated fuel
4Electrical issues (corroded connector, blown fuse, failed relay)
5Clogged fuel filter putting strain on the pump

Prevention Tips

Keep the fuel tank above 1/4 full — the fuel cools and lubricates the pump
Replace the fuel filter on schedule
Use quality fuel from reputable gas stations
Address any fuel system warning lights promptly

When to Replace

Replace when diagnosed as failed. If the pump fails while driving, safely pull over and have the vehicle towed. Do not attempt to restart repeatedly — this can damage the starter.

Fuel Pump by Make

2018-2020 models from multiple Japanese manufacturers are covered under the Denso fuel pump recall. The fuel pump impeller can crack, causing stalling. Check NHTSA.gov for your specific vehicle.

Dodge

Chrysler

Jeep

FCA vehicles (2011-2015) have TIPM issues that can mimic fuel pump failure. The fuel pump relay in the TIPM fails, preventing the pump from running. TIPM replacement ($800-$1,500) is the fix, not the pump itself.

Ford

Ford F-150 (2018+) fuel pumps are integrated into the fuel tank. Replacement requires dropping the tank.