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How to Jump the Fuel Pump Relay on a Chevy Truck

2022 Chevrolet Silverado Front Grille


If you’re in a bind, knowing how to jump the fuel pump relay on a Chevy truck can save you a lot of time and effort in New Braunfels. And luckily, the service team at Northside Chevrolet is here to give you some pointers. Find out all about how to bypass the fuel pump relay on a Chevy truck, and stop by San Antonio for your next service appointment!



What is the Fuel Pump Relay?

What is the fuel pump relay, and why is it important for your Schertz travels? Your fuel pump relay controls the current flow throughout your Chevy truck electrical system. That means it controls everything from the ignition system to the lights, as well as safety features like anti-lock brakes. If the fuel pump relay senses something is wrong, it can slow or stop the flow of electricity completely.

Tools to Replace Your Fuel Pump Relay

If you want to learn how to bypass the fuel pump relay on a Chevy truck, you’ll need a few tools.

  • Ratchet set
  • Open-ended wrench
  • Extension cables
  • Replacement fuel pump relay

If you don’t have what you need, feel free to stop by our parts department in San Antonio!

How to Bypass the Fuel Pump Relay

Once you’ve gotten all your tools in order, it’s time to learn how to jump the fuel pump relay. The process should take just under an hour, so follow these steps to get going:

  1. Find the Relay: After parking your car on flat ground, pop your hood and look in the bay of the engine. You’ll likely find the fuel pump relay by the fuse box or the battery terminals, but check your owner’s manual to be sure.
  2. Disconnect the Terminals: Carefully disconnect the battery terminals. You’ll need to remove the black negative cable, but you can remove both if you’d prefer.
  3. Connect Jumper Cables: Join the ends of the cable carefully, matching the disconnecting process you did in step 2. Join the red positive cable from the jumper cable to the corresponding battery terminal while avoiding contact with any other metal.
  4. Start Engine: Start the engine and let it run for 15 seconds. Turn off the ignition switch.
  5. Check Your Lights: The final step is to look at the light on your fuel gauge and see if it turns green. It may change from red to yellow to green, so give it a little bit of time.

What if you want to learn how to bypass the fuel pump relay without jumper cables? You’ll need to disconnect the 4-pin pump from the center of the relay. Then, take a 5-inch piece of copper wire strip a half inch worth of insulation from both ends of the wire. One end of the stripped wire will connect with the pin slot on the upper-left of the pump relay center, while the other end will go into the pin slot on the lower-right of the relay center.

Find Out More with Northside Chevrolet

Need more advice on how to jump the fuel pump relay on your Chevy truck? Don’t hesitate to reach out to us at Northside Chevrolet. Our team can take a look under the hood, so you can get back on the Boerne roads in no time. Contact us with any questions or schedule your appointment in San Antonio!


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Contact Us

Main 855-869-9533 Sales 210-201-0085
9400 San Pedro Ave
San Antonio, TX 78216
Contact Us

Contact Us

Main 855-869-9533 Sales 210-201-0085
9400 San Pedro Ave
San Antonio, TX 78216
Northside Chevrolet 29.52532, -98.49863.