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1986-1991 Fox Body Mustang Fuel Pump Relay Bracket - Review & Install

Created by Tyler Rodriquez / 5 min read
Date Created: 1/4/2024
Last Updated: 1/4/2024

Follow along as we walk you through the easy steps of installing a new fuel pump relay bracket in a 1986-1991 Fox Body Mustang.

Viewing this install and using the information shared is subject to the terms set forth here - View the LMR Install Instructions Disclaimer.
Sometimes it's the simple parts that get us excited. I know, I know! You're thinking why does there need to be a video on a fuel pump relay bracket for a 1986-1993 Fox Body Mustang. Every once in a while we like to just take a step back from the higher-level stuff and appreciate the small things. That's exactly what we did with this video.
 
The fuel pump relay bracket for a 1986-1991 Fox Body Mustang is located underneath the driver's front seat. Its job is simple, hold the fuel pump relay. The 5.0 Resto is a reproduction of the original. Meaning it shares the same dimensions and tolerances as the factory unit. The bracket is plated in silver zinc to prevent corrosion and features the correct mounting locations.
 
Product Links
 
Tool List
  • Vacuum
  • 1/4" Socket Set
  • 3/8" Socket Set
  • Ratcheting Combination Wrench Set
 
Torque Specs
  • Fuel Pump Relay Bracket to Seat Brace Screw - Hand Tight (89 lb-in)

Installation Instructions

Step 1: Remove the Front Seat



Begin by removing the front seat of your Fox Body Mustang. Refer to our linked video below for a detailed guide on how to remove the front seat. The front retaining hardware consists of two 15-millimeter nuts, and the rear retaining hardware is secured by two 15-millimeter bolts. If applicable, disconnect the electrical connection and safely remove the seat from the car.
 

Step 2: Check Front Nuts for Stud Issues



While removing the front nuts, be cautious as the entire stud may come out. If this happens, you might need to use a jam nut setup to hold the stud and break the nut free. This issue typically occurs due to over-tightening of the nuts. A 15-millimeter ratcheting combination wrench is recommended for this task.
 

Step 3: Remove Plastic Covers on Seat Hardware



Depending on your car model, the seat hardware may have plastic covers. Use a push pin removal tool to gently remove these covers secured with small push pins, both at the front and back of the seat.
 

Step 4: Disconnect Electrical Connection




Ensure the electrical connection to the seat is disconnected. If the seat in your car has plastic covers, use a push pin removal tool to detach them. Once the electrical connection is disconnected, proceed to remove the seat.
 

Step 5: Locate and Remove Fuel Pump Relay




Locate the fuel pump relay in your Fox Body Mustang. In some cars, it might be positioned differently, either in the hole closer to the front or back. Using a push pin removal tool, gently remove the relay from its bracket.
 

Step 6: Consider Replacement



Consider purchasing a new fuel pump relay if needed. New relays typically come with a harness clip. Check the pigtail for any damage, and if necessary, replace it using common electrical knowledge, matching colors, and using butt connectors or soldering.
 

Step 7: Install New Fuel Pump Relay Bracket




Install the new fuel pump relay bracket. The bracket has a locating tab that fits into the seat bracket. Tighten the screw securely, and while doing so, you may need to slightly pull up on the bracket to ensure the relay is clipped into its proper locations.
 

Step 8: Torque and Wrenching Sizes

 
Torque the screw snugly, as this is a fuel pump relay bracket and doesn't require specific torque specifications. The factory screw is typically 11 millimeters, while the screw provided with the fuel pump relay bracket is 10 millimeters.
 

Step 9: Optional - Vacuum the Carpet




With the seat removed, take the opportunity to vacuum the carpet. Use an air compressor to flush debris towards the front or back, making it easier to clean the area.
 

Step 10: Reinstall Seats




Reinstall the front seats, ensuring they are securely tightened with the appropriate bolts. Once done, you've successfully installed the new fuel pump relay bracket in your Fox Body Mustang.
 

Conclusion

Congratulations! You've completed the installation of the fuel pump relay bracket in your Fox Body Mustang. If you found value in this guide, consider liking the video, subscribing to our channel, and turning on notifications for future updates. For more Fox Body Mustang-related content, stay tuned with the real enthusiasts at lmr.com.
 


About the Video

1986-1991 Fox Body Mustang Fuel Pump Relay Bracket - Review & Install

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Published on 2023-09-13
Sometimes it's the simple parts that get us excited. I know, I know! You're thinking why does their need to be a video on a fuel pump relay bracket for a 1986-1993 Fox Body Mustang. Every once in awhile we like to just take a step back from the higher level stuff and appreciate the small things. That's exactly what we did with this video.

The fuel pump relay bracket for a 1986-1991 Fox Body Mustang is located underneath the driver's front seat. It's job is simple, hold the fuel pump relay. The 5.0 Resto is a reproduction of the original. Meaning it shares the same dimensions and tolerances as the factory unit. The bracket is plated in silver zinc to prevent corrosion and features the correct mounting locations.
Thumbnail image of the author of this article, Tyler Rodriquez.

About the Author

Tyler has written content for Late Model Restoration for nearly 8 years, producing over 300 articles. As an avid New Edge fan, Tyler has owned 4 2004 Mustangs and an 88 Convertible Fox Body. Read more...