🔧 Tucson - Fuel Pump Replacement

On your Tucson, the fuel pump is part of an in-tank fuel pump module (it sits inside the fuel tank). The exact procedure depends on whether Hyundai provided a service access panel under the rear seat (easy) or if the fuel tank must be lowered (harder).

Difficulty Level: Intermediate | Estimated Time: 1.5-4.5 hours

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⚠️ Safety & Precautions

• ⚠️ Work outside or in a very well-ventilated area; fuel vapors ignite easily.
• ⚠️ No smoking, no heat guns, no shop lights with hot bulbs near the open tank.
• ⚠️ Depressurize the fuel system before disconnecting any fuel line to avoid spray.
• ⚠️ Disconnect the negative battery cable before opening the fuel tank/module area.
• ⚠️ Keep a Class B fire extinguisher nearby.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Class B fire extinguisher
• 10mm socket
• 3/8" drive ratchet
• 3/8" drive torque wrench (5-80 Nm range)
• Trim clip removal tool
• Phillips screwdriver #2
• Flat trim tool
• Fuel line quick-disconnect tool set
• Plastic pick set
• Shop towels
• Catch pan
• Hand siphon pump (specialty)
• Fuel pump lock ring wrench (specialty)
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel pump module assembly - Qty: 1
• Fuel pump module seal / tank O-ring - Qty: 1
• Dielectric grease - Qty: 1
• Fuel-resistant gloves - Qty: 1

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Run the fuel level down as low as possible; a lighter tank is safer and easier.
• Have a clean work surface; dirt in the tank can damage the new pump.
• Please confirm 1 thing before I give the exact Tucson steps + torque specs: Do you have a round/oval service access cover under the rear seat bottom? If you can, upload a photo of under the rear seat cushion area.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Depressurize the fuel system

• Open the hood.
• Remove the fuel pump fuse/relay using a trim clip removal tool (for the fuse box cover) and your fingers for the fuse/relay.
• Start the engine and let it run until it stalls; crank for 2-3 seconds more.
• Turn the ignition OFF.

Step 2: Disconnect the battery

• Use a 10mm socket and 3/8" drive ratchet to disconnect the negative battery terminal and isolate it so it can’t spring back.

Step 3: Choose the correct access method (this determines the rest)

• If you have an access panel: You’ll lift the rear seat cushion, remove the access cover, and remove the fuel pump module from above.
• If you do NOT have an access panel: You’ll support the tank with a floor jack (rated 3-ton minimum), disconnect lines/wiring underneath, and lower the tank enough to remove the module.
• Upload a photo and I’ll continue with the correct OEM-accurate path and the correct torque specs for your exact module style.

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✅ After Repair

• Cycle ignition ON for 5 seconds, OFF for 5 seconds, repeat 3 times to prime the system.
• Start the engine and check carefully for fuel leaks at every connection.
• If the check engine light comes on, stop and recheck connector seating and line locks.

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💰 DIY vs Shop Cost

Shop Cost: $900-$1,700 (parts + labor)

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

You Save: $650-$1,050 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2.0-4.0 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.