Fuel Pump Replacement

Step by step instructions on how to replace an automotive fuel pump. This article pertains to most vehicles except electric.

Difficulty Scale: 4 of 10

Tools and Supplies Needed

  • Fuel siphon hose
  • Fuel container(s) large enough to hold the amount of gas in the tank.
  • Wrench set
  • Socket set
  • Fuel pump replacement
  • Shop towels
  • Protective eyewear and clothing
  • Fuel filter
  • Fuel line removal tool
  • Fuel tank support
Begin with the vehicle safety raised in the air enough to access the fuel tank. Use jack stands for additional safety. (No smoking or open flame.)

Step 1
- Disconnect the negative battery terminal, this will avoid sparks while working with a flammable liquid. (Note: Record pre-set radio stations so they can be re-entered when the job is complete.)

Disconnecting Negative Battery Terminal

Step 2 - After the battery has been disconnected, remove the gas cap and insert a hard plastic line into the filler neck to draw the fuel out. There are a number of methods to perform this by causing a siphon. Once the gas has started flowing keep the container below the level of the tank. (Note: Gasoline and the fumes are highly flammable, so use appropriate precautions.)

Gas Siphon with Gas Can

Step 3 - Locate and remove gas tank filler neck mounting bolts.

Remove Filler Neck Mounting Bolts

Step 4 - Once the filler neck mounting bolts have been removed, locate and disconnect electrical connectors to fuel tank.

Disconnect Electrical Connectors


Written by
Co-Founder and CEO of
35 years in the automotive repair field, ASE Master Technician, Advanced Electrical and Mechanical Theory.


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Article first published (Updated 2015-01-07)