How to Replace the In-Tank Fuel Pump Module on a 2018 Kia Sportage
Step-by-step rear-seat access or fuel tank drop instructions, tools/parts list, safety tips, and priming checks
How to Replace the In-Tank Fuel Pump Module on a 2018 Kia Sportage
Step-by-step rear-seat access or fuel tank drop instructions, tools/parts list, safety tips, and priming checks


🔧 Sportage - Fuel Pump Replacement
On your Sportage, the fuel pump is part of an in-tank fuel pump module (pump + level sender). Replacement usually happens through an access cover under the rear seat (best case), or by lowering the fuel tank (if there’s no access).
Difficulty Level: Intermediate | Estimated Time: 1.5-4.0 hours
⚠️ Safety & Precautions
- ⚠️ Work outside or in a very well-ventilated area—fuel vapors ignite easily.
- ⚠️ No smoking, no flames, no hot work lights (use LED).
- ⚠️ Relieve fuel pressure before disconnecting any fuel line to prevent spray.
- ⚠️ Disconnect the negative battery cable before opening the tank/module.
- ⚠️ Keep a fire extinguisher rated for flammable liquids nearby.
- ⚠️ Clean the top of the module before opening it—dirt in the tank can damage the new pump.
🔧 Required Tools
You'll need the following tools for this repair:
- Safety glasses
- Nitrile gloves
- Fire extinguisher (Class B)
- 10mm socket
- 12mm socket
- 14mm socket
- 3/8" ratchet
- 6" socket extension
- Torque wrench (3/8")
- Phillips screwdriver #2
- Flat trim tool
- Needle-nose pliers
- Fuel line disconnect tool set (specialty)
- Fuel pump lock ring wrench (specialty)
- Plastic scraper
- Shop towels
- Drain pan
- Multimeter (optional)
- Floor jack (rated 3-ton minimum)
- Jack stands (rated 3-ton minimum)
- Wheel chocks
- Transmission jack (specialty)
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Fuel pump module assembly (in-tank) - Qty: 1
- Fuel pump module seal / O-ring - Qty: 1
- Optional: Fuel pump strainer (sock filter) - Qty: 1
- Optional: Fuel line quick-connect retaining clips - Qty: 1 set
📋 Before You Begin
- Park on level ground and set the parking brake.
- Reduce fuel level if possible (under 1/4 tank makes this much easier if the tank must be lowered).
- Relieve fuel pressure: remove the fuel pump fuse/relay, start the engine, and let it stall; crank 2-3 seconds more. Less spray when lines open.
- Disconnect the negative battery cable using a 10mm socket.
- Quick question (so I can give the exact path): Do you see a metal access cover under the rear seat bottom (usually held by small bolts)?
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm access method (rear-seat access vs tank drop)
- Lift the rear seat bottom cushion (use a flat trim tool to release the front clips).
- Look for a round/oval metal access cover in the floor.
- If you have the cover, follow Path A below.
- If there is no cover, you’ll need Path B (lower the fuel tank).
Step 2 (Path A): Remove the fuel pump access cover
- Vacuum/wipe loose dirt first using shop towels.
- Remove the access cover fasteners using a 10mm socket (some covers use Phillips screws—use Phillips screwdriver #2).
- Peel back any butyl sealer carefully using a plastic scraper. (Butyl sealer is a sticky sealing strip that prevents fumes.)
Step 3 (Path A): Disconnect electrical connector and fuel lines
- Unplug the module connector by releasing the lock tab (use needle-nose pliers only if needed).
- Place a drain pan and shop towels under the lines.
- Disconnect the fuel quick-connect(s) using a fuel line disconnect tool set (specialty). (A quick-connect is a snap-on fuel fitting with internal clips.)
Step 4 (Path A): Remove the lock ring and pull the module
- Clean the top of the module area thoroughly using shop towels. Cleanliness matters here.
- Remove the lock ring using a fuel pump lock ring wrench (specialty).
- Lift the module straight up slowly, angling as needed to clear the float arm (fuel level sensor).
- Let fuel drain into the tank; keep the opening covered with a clean towel when paused.
Step 5 (Path A): Install the new seal and module
- Remove the old tank seal/O-ring and clean the groove using a plastic scraper and shop towels.
- Install the new seal/O-ring (lightly dampen with clean fuel if needed—do not use grease unless the seal instructions allow it).
- Lower the new module in, aligning marks/tabs exactly as the old one sat.
- Install the lock ring using the fuel pump lock ring wrench (specialty) and torque wrench (3/8") to Torque to Kia specification.
Step 6 (Path A): Reconnect lines, wiring, and reseal the cover
- Reconnect fuel quick-connect(s) until they click; tug gently to confirm locked.
- Reconnect the electrical connector.
- Reinstall the access cover using a 10mm socket or Phillips screwdriver #2.
- Reapply butyl sealer if it was disturbed (or replace it) to prevent fuel smell in the cabin.
Step 7 (Path B): Lower the fuel tank (only if no access cover)
- Chock front wheels using wheel chocks.
- Raise and support the vehicle using a floor jack (rated 3-ton minimum) and jack stands (rated 3-ton minimum).
- Support the fuel tank with a transmission jack (specialty).
- Remove shields/guards as equipped using a 10mm socket and 12mm socket.
- Loosen/remove tank strap fasteners using a 14mm socket and 3/8" ratchet; then lower the tank slightly.
- Disconnect electrical connector and fuel/EVAP lines using fuel line disconnect tool set (specialty), then lower the tank fully.
Step 8 (Path B): Replace the module on the tank (same as Path A)
- With the tank on the ground, clean the module area using shop towels.
- Remove lock ring using fuel pump lock ring wrench (specialty).
- Replace seal/O-ring and reinstall module.
- Tighten lock ring using torque wrench (3/8") to Torque to Kia specification.
Step 9 (Path B): Reinstall the tank
- Raise the tank with the transmission jack (specialty).
- Reconnect all fuel/EVAP lines and the electrical connector (double-check routing and clicks).
- Reinstall tank straps using a 14mm socket and torque wrench (3/8") to Torque to Kia specification.
- Reinstall any shields using a 10mm socket / 12mm socket.
✅ After Repair
- Reconnect the negative battery cable using a 10mm socket and Torque to Kia specification.
- Reinstall the fuel pump fuse/relay.
- Prime the system: switch ignition ON for 5 seconds, OFF for 5 seconds, repeat 3-4 times (don’t crank). Builds pressure safely.
- Start the engine and inspect for leaks at the module and line connections (use a bright LED light).
- If you have a check engine light after the job, a scan may be needed (often from an EVAP line not fully seated).
💰 DIY vs Shop Cost
Shop Cost: $900-$1,800 (parts + labor)
DIY Cost: $250-$700 (parts only)
You Save: $650-$1,100 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.
🎯 Ready to get started?
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