🔧 TITAN XD - Fuel Pump Replacement

On your TITAN XD, the fuel pump is part of an in-tank fuel pump module. The usual way to replace it is to lower the fuel tank, remove the pump module from the top of the tank, then reinstall everything with a new seal to prevent leaks.

Difficulty Level: Advanced | Estimated Time: 3-6 hours

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⚠️ Safety & Precautions

• 🧯 Work outside or in a well-ventilated area—fuel vapors ignite easily.
• 🔥 No smoking, no heat guns, no shop lights with hot bulbs, no grinding/sparks.
• 🔋 Disconnect the negative battery terminal before opening any fuel line.
• ⛽ Relieve fuel pressure before disconnecting fuel lines to avoid spray.
• 🛑 Support the fuel tank with a transmission jack—do not balance it on a floor jack.
• 🧤 Wear safety glasses and fuel-resistant gloves; gasoline can burn skin/eyes.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Fuel-resistant nitrile gloves
• Fire extinguisher (Class B)
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Transmission jack (specialty)
• Socket set (8mm-19mm)
• Ratchet (3/8" drive)
• Breaker bar (3/8" or 1/2" drive)
• Torque wrench (10-150 ft-lbs)
• Flat trim tool
• Flathead screwdriver
• Pliers
• Fuel line disconnect tool set
• Brass punch and hammer
• Shop towels
• Drain pan (2+ gallon)
• Hand siphon pump (specialty)

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel pump module assembly (in-tank) - Qty: 1
• Fuel pump module tank seal / O-ring - Qty: 1
• Fuel pump module lock ring (if damaged) - Qty: 1
• Evaporative hose clamps (assortment) - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and place wheel chocks at the front wheels.
• Drive the fuel level low if possible. A lighter tank is much safer.
• Relieve fuel pressure: remove the fuel pump fuse/relay, start the engine, and let it stall; crank 2-3 seconds more, then turn the key OFF.
• Disconnect the battery: use a 10mm socket to remove the negative terminal and isolate it so it can’t spring back.
• Assumption: This procedure uses the common “lower the tank” method (no service access panel).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise and support your TITAN XD

• Use a floor jack (rated 3-ton minimum) to lift the rear.
• Set the frame securely onto jack stands (rated 3-ton minimum).
• Keep the floor jack lightly supporting as a backup, not as the main support.

Step 2: Prepare the fuel tank to come down

• Place a transmission jack (specialty) under the fuel tank and snug it up.
• If the tank is heavy, remove fuel with a hand siphon pump (specialty) into approved fuel containers.
• Position a drain pan (2+ gallon) and keep shop towels ready for spills.

Step 3: Disconnect filler neck and EVAP hoses

• Loosen hose clamps using a flathead screwdriver or socket set (8mm-19mm) (whichever your clamps use).
• Use pliers to release spring clamps (if equipped) and slide them back.
• Carefully twist and pull the hoses off. Twist first—don’t tear hoses.

Step 4: Disconnect electrical and fuel line connections at the tank

• Unplug the fuel pump module connector using a flat trim tool to lift the lock tab if needed.
• Disconnect the fuel line quick-connect using a fuel line disconnect tool set (a small plastic/metal ring that releases the internal clips).
• Wrap the connection with shop towels as you separate it to catch any residual fuel.

Step 5: Remove/loosen the tank shields and straps

• Remove any tank shield bolts using a socket set (8mm-19mm) and ratchet (3/8" drive).
• Support the tank firmly with the transmission jack (specialty).
• Remove the tank strap bolts using a breaker bar and socket set (8mm-19mm), then finish with the ratchet (3/8" drive).
• During reassembly: Torque tank strap and shield fasteners to factory specification using a torque wrench (10-150 ft-lbs).

Step 6: Lower the tank slightly and re-check for anything still attached

• Slowly lower the transmission jack (specialty) a few inches.
• Look over the top/side of the tank for any remaining hoses or harness clips.
• Disconnect anything remaining using pliers and a flat trim tool.

Step 7: Clean the area around the fuel pump module

• Wipe dirt off the top of the tank using shop towels.
• Keep dirt out of the tank—contamination can damage the new pump.

Step 8: Remove the fuel pump lock ring

• Use a brass punch and hammer to tap the lock ring counterclockwise until it releases.
• Brass is used because it’s less likely to spark than steel. Small taps—don’t crack the ring.

Step 9: Remove the fuel pump module

• Lift the module straight up carefully (it may have a fuel level float arm attached).
• Angle it as needed to clear the opening without bending the float arm.
• Let fuel drain into the tank, then set the module into a drain pan (2+ gallon).

Step 10: Install the new seal and fuel pump module

• Remove the old seal/O-ring using a flat trim tool.
• Install the new fuel pump module tank seal / O-ring cleanly and flat (no twists).
• Insert the new module in the same orientation as the old one.
• Install the lock ring and tighten fully: Lock ring fully seated to its stop/marks (factory method) using a brass punch and hammer.

Step 11: Raise the tank and reconnect everything

• Raise the tank with the transmission jack (specialty).
• Reconnect electrical connector(s) by hand until you hear/feel the lock click.
• Reconnect the fuel line quick-connect by hand until it clicks, then lightly tug-test it.
• Reconnect EVAP/filler hoses using pliers and tighten clamps with a flathead screwdriver or socket set (8mm-19mm).
• Reinstall tank straps/shields using a socket set (8mm-19mm) and ratchet (3/8" drive), then torque to factory specification with a torque wrench (10-150 ft-lbs).

Step 12: Restore fuel pressure and check for leaks

• Reconnect the negative battery terminal using a 10mm socket.
• Reinstall the fuel pump fuse/relay (if removed) by hand.
• Key ON (do not start) for 5 seconds, key OFF for 5 seconds; repeat 3-4 times to prime the system.
• Start the engine and inspect for leaks at the tank top area (as visible), fuel line connection, and filler neck.

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✅ After Repair

• Let the engine idle for a few minutes and re-check for fuel smell or wet spots.
• Test drive gently, then re-check underneath for seepage.
• If the fuel gauge reads incorrectly, re-check the module orientation and connector seating.

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💰 DIY vs Shop Cost

Shop Cost: $900-$1,800 (parts + labor)

DIY Cost: $250-$900 (parts only)

You Save: $650-$900 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 3-6 hours.

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🎯 Ready to get started?

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