How to replace the fuel pump — Ford F-150 2020

Tools you'll need

• Floor jack and jack stands
• Ratchet
• 8 mm, 10 mm and 13 mm sockets
• Fuel line disconnect tool set
• Brass punch or lock ring tool
• Drain pan
• Fire extinguisher

Parts you'll need

• New fuel pump module assembly
• New fuel tank seal and lock ring
• Fuel line disconnect tool set

Steps

1. Relieve the fuel pressure and disconnect the batteryPark outdoors on a flat surface, set the parking brake, and disconnect the negative battery terminal. Relieve the fuel pressure by pulling the fuel pump fuse and running the engine until it stalls, then turn the key off.
   Tip: Work with as little fuel in the tank as you can. A full tank is very heavy and spills more if a line comes loose.
2. Drain as much fuel from the tank as you canSiphon or drain as much fuel from the tank as possible through the filler neck. Then slide under the truck and place a drain pan under the tank.
3. Disconnect the fuel lines and the pump wiringDisconnect the fuel lines from the top of the tank using the fuel line disconnect tool, and unplug the electrical connector to the pump. Label each line so it goes back on the right fitting.
   Tip: Press the disconnect tool fully into the fitting before you pull the line. Forcing the line without the tool will damage the fitting.
4. Support the tank, remove the straps, and lower itSupport the fuel tank with a floor jack and a wide board. Remove the two tank straps, then lower the tank slowly until you can reach the top of the pump module.
5. Remove the lock ring and lift out the old pumpClean the dirt from around the pump module so none of it falls into the tank. Turn the lock ring counterclockwise with a brass punch or the lock ring tool, then lift the old pump module straight out. Note which way the float arm points.
   Tip: Use a brass punch, not steel, on the lock ring. Steel on steel can spark near gasoline fumes.
6. Install the new pump module with a new sealSet the new pump module in the same orientation as the old one, with the float arm pointing the same way. Fit the new seal and lock ring and tighten the ring until it locks.
7. Raise the tank and reconnect everythingRaise the tank back into place with the jack, refit the straps, and reconnect the fuel lines until they click and the electrical connector until it locks. Refit the fuel pump fuse and reconnect the battery.
8. Prime the system, check for leaks, and start the engineTurn the key to On a few times without starting the engine so the pump primes the system and builds pressure. Check every fuel line connection for leaks, then start the engine. It may crank a little longer the first time while the lines fill. Check for leaks again after a short drive.
   Tip: If you smell fuel or see a drip, shut the engine off immediately and recheck the line connections.

Safety first

Gasoline is extremely flammable. Work outdoors or in a well-ventilated area, keep a fire extinguisher within reach, and never smoke or create sparks near the tank. Relieve the fuel pressure before you disconnect any line. This is an advanced job; many owners should have a qualified technician do it.