Depending on how your vehicle is equipped : front tanks were 17 / 18 / or 19 U.S. gallons rear tanks were 18 or 19 U.S. gallon combinations were either 36 or 37 U.S. gallons
30 gallons per tank.
Yes.
fuel pumps on top of the gas tank screws on
" regular " unleaded , 87 octane should work just fine ( even my 1991 Ford Mustang 5.0 liter LX was designed to run on 87 octane )
The 1986 ford f150 has two fuel pumps. There is one pump mounted inside of each fuel tank.
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check fuse, then switch, then the wiring.
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The EGR valve is located in the center of the engine on a F150 Lariat 5.4 liter. It is near the firewall.
You Will Need A Special Tool For This. Take It To A Good Garrage Its Not Worth The Hassle, Or Extra Money For The Tool.
It depends on whether you have one tank or dual tanks. If you don't have the owners manual, you can find one on line for your particular auto.
If you're talking about the inertia switch, in my 1990 F150 XLT Lariat, it's located on the firewall, driver's side, beside the main wiring harness pass-thru, directly below the brake pedal linkage. It's black, with a red indicator on top. I've used it before to drop out the fuel system so I could disassemble the fuel rail.