🔧 Fuel Pump - Replacement

This job means removing the fuel tank and replacing the in-tank fuel pump module. On your Ram, the pump is serviced from the top of the tank, so the tank has to come out first.

Difficulty Level: Advanced | Estimated Time: 4-6 hours

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⚠️ Safety & Precautions

• Work outside or in a very well-ventilated area. Fuel vapors are flammable.
• No smoking, sparks, hot lights, or open flames near the truck.
• Disconnect the negative battery cable before opening the fuel system.
• Relieve fuel pressure before disconnecting any fuel lines.
• Support the fuel tank fully before removing the straps.
• Use a fuel-safe container if any fuel must be drained.
• Wear safety glasses and fuel-resistant gloves.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Fuel-resistant gloves
• Floor jack (rated 3-ton minimum)
• Jack stands (rated for truck weight)
• Fuel tank jack or transmission jack
• 8mm socket
• 10mm socket
• 13mm socket
• 15mm socket
• Ratchet
• Long extension
• Torque wrench
• Trim clip tool
• Fuel line disconnect tool (specialty)
• Fuel pump lock ring tool (specialty)
• Drain pan
• Shop towels
• Flat blade screwdriver

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel pump module - Qty: 1
• Fuel pump module seal / O-ring - Qty: 1
• Fuel tank strap bolts - Qty: 2
• Fuel line retaining clips - Qty: 1 set
• Fuel filter / strainer - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Run the fuel level down as low as possible before starting. Less fuel makes the tank much easier to lower.
• Disconnect the negative battery cable.
• Relieve fuel pressure at the service port if equipped, or by following the pressure relief procedure in the fuel system.
• Raise the truck safely and support it on jack stands.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Relieve pressure and disconnect power

• Use a 10mm socket to disconnect the negative battery cable.
• Relieve fuel system pressure before opening any fuel lines.
• Keep a rag ready for drips.

Step 2: Raise and support the truck

• Use a floor jack and jack stands to raise the truck safely.
• Make sure the truck is stable before going underneath.

Step 3: Remove the fuel tank skid or shield, if equipped

• Use an 8mm socket or 10mm socket to remove any tank shield fasteners.
• Set the shield aside in the order removed.

Step 4: Disconnect filler neck and vent hoses

• Use a flat blade screwdriver or trim clip tool to loosen hose clamps and retainers.
• Disconnect the filler neck and vent hoses from the tank.
• Mark hose positions first.

Step 5: Disconnect fuel and electrical connections

• Use a fuel line disconnect tool (specialty) to release the fuel supply line.
• Disconnect the fuel pump electrical connector by hand.
• Inspect clips and seals for damage.

Step 6: Support and lower the fuel tank

• Use a fuel tank jack or transmission jack under the tank.
• Use a 15mm socket to remove the tank strap bolts.
• Lower the tank slowly and check for anything still attached.
• Tighten tank strap bolts to factory specification.

Step 7: Remove the fuel pump module

• Clean the top of the tank with shop towels before opening it.
• Use a fuel pump lock ring tool (specialty) to remove the lock ring.
• Lift the fuel pump module straight out of the tank.
• Remove the old seal / O-ring.
• Do not bend the float arm.

Step 8: Install the new fuel pump module

• Install the new seal / O-ring in the tank opening.
• Lower the new fuel pump module straight into place.
• Use the fuel pump lock ring tool (specialty) to lock it down.
• Tighten the lock ring to factory specification.

Step 9: Reinstall the tank

• Raise the tank with the fuel tank jack or transmission jack.
• Reconnect the fuel line and use the fuel line disconnect tool (specialty) only if needed to reseat the connector.
• Reconnect the electrical connector.
• Reattach filler neck and vent hoses.
• Use a 15mm socket to install the tank strap bolts.
• Tighten tank strap bolts to factory specification.

Step 10: Reinstall shields and lower the truck

• Use the correct 8mm socket or 10mm socket to reinstall any shields.
• Lower the truck off the jack stands.
• Reconnect the negative battery cable with a 10mm socket.

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✅ After Repair

• Cycle the key to ON for a few seconds, then OFF, three to four times to prime the system.
• Check carefully for fuel leaks at the tank and line connections.
• Start the engine and let it idle.
• Verify normal fuel pressure and smooth operation.
• If the check engine light stays on, clear codes and recheck for fuel system faults.

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💰 DIY vs Shop Cost

Shop Cost: $900-$1,600 (parts + labor)

DIY Cost: $250-$650 (parts only)

You Save: $650-$950 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 4-6 hours.

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🎯 Ready to get started?

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