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2015 - 2022 Chevrolet Trax

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How to replace Fuel Pump Module Assembly 2012-2020 Chevrolet Sonic

How to replace Fuel Pump Module Assembly 2012-2020 Chevrolet Sonic

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7mm
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13mm
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3/8
3/8
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1/2
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How to Replace the Fuel Pump on a 2015-2022 Chevrolet Trax

Step-by-step fuel tank removal guide with tools, parts, torque specs, and safety tips for 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022

How to Replace the Fuel Pump on a 2015-2022 Chevrolet Trax

Step-by-step fuel tank removal guide with tools, parts, torque specs, and safety tips for 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022

Orion
Orion

🔧 Trax Fuel Pump Module - Replacement

The fuel pump is part of a module mounted inside the fuel tank. Your Trax does not have an interior service opening, so the tank must be drained, supported, and lowered to replace it.

Difficulty Level: Advanced | Estimated Time: 4-7 hours

Assumption: These instructions cover the U.S.-market Trax and include separate FWD and AWD requirements.


⚠️ Safety & Precautions

  • ⚠️ Gasoline vapor is extremely flammable. Work outdoors or in a professionally ventilated area with no flames, sparks, heaters, or smoking nearby.
  • 🧯 Keep an ABC-rated fire extinguisher within immediate reach.
  • 🔋 Disconnect the negative battery cable after relieving fuel pressure.
  • 🛢️ Drain the tank with approved fuel-transfer equipment. Never siphon gasoline by mouth or use an electric household pump.
  • ⬆️ Support the Trax with four jack stands on approved lift points. Never work beneath a vehicle supported only by a floor jack.
  • 🧤 Wear fuel-resistant gloves and safety glasses. Fuel may remain trapped inside disconnected lines.
  • 💡 Use only explosion-resistant lighting. Incandescent drop lights can ignite fuel vapor.
  • 🚫 Do not power the replacement pump while it is outside the tank.
  • 🧼 Clean around the pump opening before removal. Dirt entering the tank can damage the new pump.

🔧 Required Tools

You'll need the following tools for this repair:

  • 3/8-inch drive metric socket set (7mm-18mm)
  • 1/2-inch drive metric socket set (13mm-21mm)
  • 3/8-inch drive ratchet
  • 1/2-inch drive ratchet
  • 3/8-inch drive extension set (3-inch and 6-inch)
  • Metric combination wrench set (8mm-18mm)
  • Torque wrench (5-80 Nm range)
  • Fuel-line disconnect tool set (3/8-inch and 5/16-inch)
  • Fuel pump module lock-ring tool (specialty)
  • Brass drift punch (3/8-inch)
  • Rubber mallet (16-ounce)
  • Flat-blade screwdriver (6-inch)
  • Long-nose pliers (8-inch)
  • Trim-clip removal tool (8-inch)
  • Fuel-transfer pump (gasoline-rated)
  • Fuel storage containers (gasoline-rated)
  • Transmission jack (rated 1,000-pound minimum)
  • Floor jack (rated 2-ton minimum)
  • Jack stands (rated 2-ton minimum, set of four)
  • Wheel chocks (rubber, one pair)
  • Drain pan (2-gallon minimum)
  • Shop vacuum (wet/dry, 5-gallon minimum)
  • Compressed-air blow gun (30 psi maximum)
  • Digital multimeter (CAT III rated)
  • OBD-II scan tool (fuel-system capable)
  • Paint marker (oil-based)
  • Explosion-resistant work light (12-volt LED)
  • Fuel-resistant gloves (nitrile)
  • Safety glasses (ANSI Z87.1)
  • ABC fire extinguisher (5-pound minimum)

🔩 Required Parts

HowToo sells all the parts you need for this repair:

  • Complete in-tank fuel pump module - Qty: 1
  • Fuel pump module sealing ring - Qty: 1
  • Fuel pump module retaining ring - Qty: 1 if damaged or corroded
  • Fuel line retaining clips - Qty: As required
  • Exhaust flange gasket - Qty: 1 if the exhaust is separated
  • Fresh gasoline - Qty: 8-12 litres

📋 Before You Begin

  • Park your Trax on firm, level ground. Select Park, apply the parking brake, and chock both front wheels.
  • Run the fuel level as low as safely possible. A nearly empty tank is much easier to control.
  • Record any stored diagnostic trouble codes with the OBD-II scan tool before disconnecting the battery.
  • Keep each fuel container capped and away from the work area after draining the tank.
  • FWD models do not have a rear propeller shaft. AWD models require additional clearance around the propeller shaft and rear driveline.
  • A propeller shaft is the rotating tube that transfers power toward the rear wheels.

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Relieve Fuel-System Pressure

  • Remove the underhood fuse-block cover with the flat-blade screwdriver.
  • Use the diagram inside the cover to identify and remove the fuel-pump fuse or relay with the long-nose pliers.
  • Start the engine and allow it to run until it stalls. Crank it for another five seconds, then switch the ignition off.
  • Reinstall the fuse-block cover but leave the fuel-pump fuse or relay removed.
  • Keep your face away from opened fuel connections.

Step 2: Disconnect the Battery

  • Open the hood and use a 10mm socket with the 3/8-inch ratchet to loosen the negative battery-terminal nut.
  • Lift the negative cable from the battery and position it so it cannot spring back onto the terminal.
  • Wait at least two minutes before disconnecting fuel-system wiring.
  • During reassembly, tighten the negative battery-terminal nut to 5 Nm (44 in-lbs).

Step 3: Drain the Fuel Tank

  • Use the gasoline-rated fuel-transfer pump to move as much fuel as possible into approved fuel containers.
  • Cap every container immediately after filling it.
  • Place the 2-gallon drain pan beneath the filler-hose area to catch residual fuel.
  • Do not use the shop vacuum for liquid gasoline. It is only used later for dry dirt around the closed pump opening.

Step 4: Raise and Support the Vehicle

  • Use the 2-ton floor jack at the approved lifting points and raise your Trax high enough to lower the fuel tank.
  • Position all four 2-ton jack stands beneath the approved support points, then lower the vehicle onto them.
  • Push gently at one corner to confirm the vehicle is stable before going underneath.
  • Position the explosion-resistant work light beneath the vehicle.

Step 5: Remove Underbody Shields

  • Use the 7mm, 10mm, or 13mm socket matching the installed fasteners to remove shields blocking access to the tank.
  • Use the trim-clip removal tool for plastic retainers. Keep the fasteners arranged by location.
  • Inspect for fuel leaks before proceeding. Stop if the tank is damaged or actively leaking.

Step 6: Create Tank Clearance

  • Use the 13mm and 15mm sockets with the 3/8-inch ratchet to remove exhaust hangers or braces that prevent the tank from lowering.
  • Support any loosened exhaust section. Do not allow its weight to hang from the flex joint.
  • On AWD models, use the paint marker to mark the propeller-shaft flanges before removal so the shaft returns to its original orientation.
  • On AWD models, use the socket matching the installed propeller-shaft bolts with the 1/2-inch ratchet. Support the shaft and move it clear of the tank; never let it hang from a joint.
  • Propeller-shaft fasteners are torque-to-spec driveline hardware. Verify the exact AWD fastener torque for the installed bolt design before reassembly rather than substituting a generic value.

Step 7: Disconnect the Filler and Vent Hoses

  • Place the drain pan below the filler-neck connection.
  • Use the 7mm socket or flat-blade screwdriver to loosen the filler-hose clamp.
  • Use the long-nose pliers to release the vent-hose clamp, then twist the hoses gently to free them.
  • Plug or cover the openings to keep dirt out. Do not use tools that can cut or puncture the hoses.

Step 8: Support the Fuel Tank

  • Center the 1,000-pound transmission jack beneath the tank.
  • Place a broad wooden pad between the jack and tank if needed. Do not place pressure on fuel lines or molded fittings.
  • Raise the jack only until it supports the tank’s weight.

Step 9: Lower the Tank Partway

  • Use the 13mm or 15mm socket matching the installed tank-strap bolts with the 1/2-inch ratchet to loosen and remove the straps.
  • Lower the transmission jack only a few centimetres. Stop as soon as the top electrical connector and fuel lines become reachable.
  • Do not stretch the wiring harness, evaporative-emission lines, or fuel hoses.

Step 10: Disconnect the Pump and Tank Connections

  • Use the flat-blade screwdriver to release each electrical connector lock, then pull on the connector body rather than its wires.
  • Clean exposed dirt with the compressed-air blow gun set below 30 psi. Keep safety glasses on.
  • Wrap a shop towel around each fuel connection, then use the correctly sized 5/16-inch or 3/8-inch fuel-line disconnect tool to release it.
  • A quick-connect fitting is a fuel-line coupling released by pressing its internal retainer rather than unscrewing it.
  • Release the evaporative-emission vapor-line tabs by hand or with the flat-blade screwdriver. Do not force brittle plastic fittings.

Step 11: Remove the Fuel Tank

  • Confirm that every hose, line, connector, and strap is detached.
  • Use the transmission jack to lower the tank slowly while a helper keeps it balanced.
  • Roll the tank away from your Trax and place it on a stable, padded surface.

Step 12: Clean the Pump Area

  • Use the wet/dry shop vacuum only on dry dirt around the still-sealed pump opening.
  • Use the compressed-air blow gun below 30 psi for remaining dust. Do not blow debris into an open tank.
  • Use the paint marker to mark the pump module’s orientation relative to the tank.

Step 13: Remove the Old Pump Module

  • Fit the specialty fuel pump module lock-ring tool over the retaining ring and turn it counterclockwise with the 1/2-inch ratchet.
  • If the specialty tool cannot engage, use the brass drift punch and 16-ounce rubber mallet carefully. Never use a steel punch because it can create sparks.
  • Remove the retaining ring, then lift the module slowly while tilting it to clear the fuel-level float.
  • Drain residual fuel from the old module into the drain pan.
  • Remove and discard the old sealing ring.

Step 14: Install the New Pump Module

  • Compare the electrical connector, fuel fittings, float arm, and module height with the removed unit.
  • Install the new sealing ring dry into the clean tank groove unless the replacement-part instructions specifically require clean engine oil as assembly lubricant.
  • Lower the new module into the tank without bending the fuel-level float arm.
  • Align the module and tank marks made with the paint marker.
  • Install the retaining ring with the specialty fuel pump module lock-ring tool and 1/2-inch ratchet until the ring is fully seated beneath all tank locking tabs.
  • Do not strike a plastic retaining ring directly with a steel tool.

Step 15: Reinstall the Fuel Tank

  • Place the tank securely on the transmission jack and raise it partway.
  • Push each fuel and vapor line onto its matching fitting until it clicks. Tug gently by hand to confirm it is locked.
  • Reconnect the electrical connectors and engage their secondary locks with the flat-blade screwdriver.
  • Raise the tank into position while checking that no hose or wiring harness is trapped.
  • Install the tank straps with the matching 13mm or 15mm socket and torque wrench. Tighten the tank-strap bolts to 25 Nm (18 ft-lbs).

Step 16: Reconnect the Filler System

  • Push the filler and vent hoses fully onto their fittings.
  • Position each clamp over the raised locating bead.
  • Use the 7mm socket or flat-blade screwdriver to tighten a worm-drive filler-hose clamp until secure without crushing the hose.
  • Use the long-nose pliers to return spring clamps to their original positions.

Step 17: Reinstall Driveline, Exhaust, and Shields

  • On AWD models, align the paint marks and reinstall the propeller shaft with the matching metric socket and torque wrench. Use the exact service specification for the installed fastener design.
  • Use the 13mm and 15mm sockets to reinstall removed exhaust braces, heat shields, and hangers.
  • Install the underbody shields with the 7mm, 10mm, or 13mm socket and reinstall plastic retainers with hand pressure.
  • Confirm that the exhaust and propeller shaft do not touch the fuel tank, straps, hoses, or wiring.

Step 18: Lower and Prime the Vehicle

  • Use the floor jack to raise your Trax slightly, remove all four jack stands, and lower it to the ground.
  • Reinstall the fuel-pump fuse or relay with the long-nose pliers.
  • Reconnect the negative battery cable with the 10mm socket and torque wrench. Torque to 5 Nm (44 in-lbs).
  • Add 8-12 litres of fresh gasoline.
  • Switch the ignition on for five seconds without starting the engine, then switch it off for ten seconds. Repeat this cycle three times to prime the system.

✅ After Repair

  • 🔍 Inspect beneath your Trax and around the filler connection for fuel leakage before starting the engine.
  • 🚗 Start the engine and let it idle. It may crank slightly longer on the first start while the fuel lines refill.
  • 🛑 Switch the engine off immediately if you smell strong gasoline, see leakage, or hear the pump running abnormally.
  • 📟 Use the OBD-II scan tool to clear fuel-pressure, pump-circuit, or evaporative-emission codes only after confirming the repair is leak-free.
  • ⛽ Verify that the fuel gauge responds normally after adding fuel.
  • 🔧 Recheck all accessible connections after a short road test. No fuel-system fitting should be damp.
  • ♻️ Transfer old fuel only into approved containers and dispose of contaminated gasoline through an authorized hazardous-waste facility.

💰 DIY vs Shop Cost

Shop Cost: $650-$1,150, approximately ₹54,000-₹96,000 (parts + labor)

DIY Cost: $180-$450, approximately ₹15,000-₹38,000 (parts only)

You Save: $470-$700, approximately ₹39,000-₹58,000 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 3-5 hours; local Sonīpat pricing and imported U.S.-spec parts availability can change the total.


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