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Draining Your Fox Body Mustang Fuel Tank | 1986-1993

Last Updated 4/8/2020 by Taylor Ward

Check out our simple, but effective install article and video explaining the ways to drain your 1986-93 Fox Body Mustang fuel tank.

FOLLOW: fox body , 79 93 mustang , how to , fuel system

How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93

In this article and video, we will show you both methods to drain your fuel tank. To perform this, you will need at least the following:

  • Gloves and Glasses
  • Common Hand Tools
  • 6ft of 5/16 inner diameter fuel hose
  • Jack & Jack Stands
  • Fuel Line Disconnects
  • Towels
  • Jug or Bucket

METHOD 1: DRAINING THE TANK IF PUMP IS STILL WORKING

  1. Support the vehicle via a-lift or jack stands.
  2. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  3. Locate the Schrader valve near the passenger side valve cover.
  4. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  5. Remove the cap and hold a rag over the valve while you depress the stem with a small screwdriver. This will depressurize the fuel system.
  6. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  7. Locate the rubber supply hose near the passenger side frame rail and position the drain pan or bucket underneath this area.
  8. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  9. Disconnect the supply line with a fuel line disconnect tool and allow some of the fuel to drain out.
  10. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  11. Connect the supply hose to the bulk hose with a coupler of some kind and place this hose inside of a clean fuel jug or bucket.
  12. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93

    How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  13. We also recommend hooking up a battery charger before you jump the relay.
  14. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  15. Go ahead and build a jumper with some 16-gauge wire and spade connectors.
  16. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  17. The location for the fuel pump relay depends on the year of your fox body. 1986-91 have the relay underneath the driver’s seat so you will have to remove that to gain access.
  18. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  19. 1992 cars were a split year so the fuel pump relay can be located either underneath the driver seat or the forward most relay underneath the mass air meter.
  20. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  21. For 1993 cars, the relay is located on the forward most relay underneath the mass air meter. To do this you will need to remove the cold air kit assembly as well as the mass air meter bracket.



  22. Go ahead and jump the relay with the jumper and drain the fuel from the tank. Regardless of location, you will jump the relay pins that have the larger gauge wire.
  23. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


METHOD 2: DRAINING THE TANK IF PUMP IS NOT WORKING

You will have to siphon the gas from the tank, and this is done by:

  1. Cutting the hose in a 45-degree angle before inserting it into the filler neck because it will help snake it down.
  2. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  3. Take a long piece of 5/16 inner diameter hose and insert into the filler neck down into the tank.
  4. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


  5. Use a suitable transfer pump or syphon gun to pull the fuel out of the tank into the clean bucket or jug. Please note that you don’t have to empty the tank completely, just enough to make tank a little easier to handle.
  6. How To Drain Fox Body Mustang Fuel Tank | 1986-93 - How To Drain Fox Body Mustang Fuel Tank | 1986-93


About the Video

How To Drain Fox Body Mustang Fuel Tank (86-93)

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Published on 2020-04-02
Buy Fox Body Parts: https://latemodelres.to/FoxBodyParts_FuelRemoval
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Follow along as Landan walks you through the steps of draining the fuel from your 1986-1993 Fox Body Mustang.
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Due to factors beyond the control of LMR.com, we cannot guarantee against the improper use or unauthorized modifications of this information. LMR.com assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. LMR.com recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of LMR.com, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not LMR.com.