How to Replace the Fuel Pump on a 2016-2018 Kia Soul (In-Tank Module Guide) (Engine: Inline 4 1.6L)
Step-by-step instructions with safety tips, required tools/parts, and priming & leak-check steps
How to Replace the Fuel Pump on a 2016-2018 Kia Soul (In-Tank Module Guide) (Engine: Inline 4 1.6L)
Step-by-step instructions with safety tips, required tools/parts, and priming & leak-check steps for 2016, 2017, 2018
🔧 Soul - Fuel Pump Replacement
The fuel pump lives inside the fuel tank (as part of a pump module) and supplies pressurized fuel to the engine. On your Soul, it’s typically accessed through a service opening under the rear seat, so you usually don’t need to drop the tank.
Difficulty Level: Intermediate | Estimated Time: 1.5-3 hours
⚠️ Safety & Precautions
- ⚠️ Work in a well-ventilated area—fuel vapors are flammable.
- ⚠️ No smoking, flames, heat guns, or shop lights that can spark.
- ⚠️ Disconnect the negative battery cable to prevent sparks.
- ⚠️ Relieve fuel pressure before opening any fuel line.
- ⚠️ Keep a Class B fire extinguisher nearby.
- ⚠️ Clean dirt around the pump before opening the tank to avoid contamination.
- ⚠️ Wear safety glasses and fuel-resistant gloves.
🔧 Required Tools
You'll need the following tools for this repair:
- 10mm socket
- 3/8" drive ratchet
- 6" extension (3/8")
- Phillips screwdriver #2
- Trim removal tool set
- Needle-nose pliers
- Fuel line disconnect tool set
- Plastic scraper
- Shop towels
- Catch pan (at least 2-quart)
- Non-sparking brass punch
- Small hammer
- Fuel pump lock ring wrench (specialty)
- Torque wrench (3/8" drive, 10–80 ft-lbs range)
- Safety glasses
- Nitrile gloves
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Fuel pump module assembly - Qty: 1
- Fuel pump module tank seal (O-ring/gasket) - Qty: 1
- Dielectric grease - Qty: 1
- Fuel-safe cleaner - Qty: 1
📋 Before You Begin
- 🅿️ Park on level ground, set the parking brake, and remove the key.
- 🔋 Disconnect the negative battery terminal using a 10mm socket.
- ⛽ Aim for a low fuel level (under 1/2 tank is easier and safer).
- 🧼 Vacuum/clean the rear seat area so dirt can’t fall into the tank.
- “Lock ring” is the big retaining ring that holds the module down.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Relieve fuel pressure
- Open the hood and remove the fuel pump fuse/relay from the fuse box (use needle-nose pliers if needed).
- Start the engine and let it run until it stalls.
- Crank for 3–5 seconds to bleed off any remaining pressure, then turn key OFF.
- Reinstall the fuse/relay after pressure is relieved.
Step 2: Disconnect the battery
- Use a 10mm socket to loosen the negative battery terminal and isolate it so it can’t spring back.
Step 3: Access the fuel pump service cover
- Fold/move the rear seat as needed and remove the rear seat bottom cushion.
- Use a trim removal tool set and/or 10mm socket (fasteners vary) to release the cushion and lift it out.
- Locate the round/oval service cover in the floor above the tank.
Step 4: Remove the service cover
- Use a Phillips screwdriver #2 or 10mm socket (varies) to remove the cover fasteners.
- Carefully peel back any butyl sealer using a plastic scraper.
- Set the cover aside where it stays clean.
Step 5: Clean the area before opening the tank
- Spray fuel-safe cleaner on the top of the module area and wipe with shop towels.
- Do not let dirt fall into the opening once the module comes out.
Step 6: Disconnect the electrical connector
- Press the locking tab and unplug the pump/module connector by hand (use trim removal tool set gently if stuck).
- Apply a thin film of dielectric grease on reassembly to help prevent corrosion.
Step 7: Disconnect the fuel lines
- Place a catch pan and shop towels under the line connections.
- Release the quick-connect fittings using the fuel line disconnect tool set as needed.
- Pull lines straight off—don’t twist hard.
- Quick-connects release with the tabs fully depressed.
Step 8: Remove the lock ring / retaining ring
- Mark the current ring position with a plastic scraper (simple reference mark).
- Preferred method: use a fuel pump lock ring wrench (specialty) and turn the ring counterclockwise.
- If access is tight: use a non-sparking brass punch and small hammer to tap the ring counterclockwise, working evenly around the ring.
- Remove the ring and set it aside clean.
Step 9: Remove the fuel pump module
- Lift the module slowly straight up; angle it as needed to clear the float arm (the fuel level “float” is the plastic arm that measures fuel level).
- Let fuel drain from the module into the tank for a few seconds.
- Place the module into the catch pan.
Step 10: Replace the tank seal (O-ring/gasket)
- Remove the old seal from the tank opening using a plastic scraper.
- Wipe the sealing surface clean with shop towels.
- Install the new fuel pump module tank seal (O-ring/gasket) flat and fully seated (no twists).
Step 11: Install the new fuel pump module
- Carefully lower the new fuel pump module assembly into the tank, guiding the float arm to avoid bending it.
- Align the module tabs/index marks with the tank (it should sit flat).
Step 12: Reinstall and tighten the lock ring
- Install the ring by hand first to avoid cross-threading.
- Tighten using the fuel pump lock ring wrench (specialty) until fully seated against its stop and aligned to your reference mark.
- Assumption: Many Soul lock rings do not use a published torque; tighten firmly to full seat with the correct wrench (do not over-hammer).
Step 13: Reconnect fuel lines and electrical connector
- Push each fuel line on until it clicks and won’t pull back off by hand.
- Plug in the electrical connector until the lock clicks.
- Wipe any spilled fuel using shop towels.
Step 14: Reinstall the service cover and rear seat
- Reinstall the service cover fasteners using a Phillips screwdriver #2 or 10mm socket.
- Reinstall the rear seat cushion using the trim removal tool set and 10mm socket as applicable.
Step 15: Reconnect the battery
- Reconnect the negative terminal using a 10mm socket.
✅ After Repair
- 🧪 Prime the system: turn key to ON for 5 seconds, OFF for 5 seconds; repeat 3 times (don’t crank yet).
- 🔍 Check for leaks at the pump top and fuel line connections (look and smell).
- 🚗 Start the engine and let it idle 2–3 minutes; recheck for leaks.
- 🛣️ Road test 5–10 minutes, then do one final leak check.
- 🧠 If a fuel-related warning light remains on, a scan may be needed (often it clears after a few drive cycles if the repair is correct).
💰 DIY vs Shop Cost
Shop Cost: $650-$1,200 (parts + labor)
DIY Cost: $180-$450 (parts only)
You Save: $470-$750 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-3 hours.
🎯 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.
Guide for Fuel Pump Module Assembly replace for these Kia vehicles
| Year Make Model | Sub Model | Engine | Body Style |
|---|---|---|---|
| 2018 Kia Soul | - | Inline 4 2.0L | - |
| 2018 Kia Soul | - | Inline 4 1.6L | - |
| 2017 Kia Soul | - | Inline 4 2.0L | - |
| 2017 Kia Soul | - | Inline 4 1.6L | - |
| 2016 Kia Soul | - | Inline 4 2.0L | - |
| 2016 Kia Soul | - | Inline 4 1.6L | - |


















