Fuel Pump Installation for a 1991 Ford Rangerby Allen Moore
1991 Ford Rangers have an in-tank fuel pump that relies on the gasoline to lubricate and cool the pump. Drivers who routinely operate their Rangers with near empty fuel tanks increase the risk of premature fuel pump failure. While there are other causes for premature pump failure, it’s always a good idea to keep your Ranger’s gas tank at least a quarter full. You'll need another person to help you perform this task.
Open the hood and support it with the hood prop rod. Unhook the negative battery cable from the terminal with the battery wrench. Position the cable end away from the battery so that it cannot accidentally contact the battery during the rest if this procedure.
Disconnect the fuel filler neck from the side of the truck bed with the socket set. Unbolt the truck bed retainer bolts from the floor of the bed with the socket set.
Lift the bed up and off the Ranger’s frame with the assistance of another person. Walk the truck bed off the back of the Ranger and set it off to the side.
Rap the rag around the tip of the screwdriver, place the tip against the fuel pump retaining ring and tap the screwdriver’s handle with the rubber mallet to turn the retaining ring counterclockwise. Remove the ring by hand.
Disconnect the fuel pump wiring harness and fuel lines with the screwdriver. Lift the old pump out of the gas tank and insert the new pump in its place. Make sure the new pump occupies the same position and orientation the old pump had prior to removal.
Tighten the fuel pump retaining ring with the rag, screwdriver and mallet by rotating it clockwise. Reconnect the wiring harness and fuel lines with the screwdriver.
Lift the truck bed off the ground and place it back on the Ranger’s frame with the assistance of another person. Make sure the fuel filler neck clears the frame and seats into the filler neck hole in the bed wall when you’re lowering the bed onto the frame.
Reinstall the bed retaining bolts with the socket set and reconnect the negative battery cable to the battery with the battery wrench.
- Never work on a fuel system while smoking or around open flames.
Items you will need
- Battery wrench
- Socket set
- Rubber mallet
- "Ford Ranger 1983 thru 1992: Haynes Manual"; Ken Freund; 2010
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