🔧 Enclave - Fuel Pump Replacement

On your Enclave, the fuel pump is part of an in-tank fuel pump module. The exact replacement procedure depends on whether your Enclave has a service access panel under the cabin/cargo area or if the fuel tank must be lowered from underneath.

Difficulty Level: Advanced | Estimated Time: 3-6 hours

---

⚠️ Safety & Precautions

• ⚠️ Work in a well-ventilated area; fuel vapors are flammable.
• ⚠️ No smoking, flames, or hot work lights near the vehicle.
• ⚠️ Relieve fuel system pressure before disconnecting fuel lines.
• ⚠️ Disconnect the negative battery cable before opening the fuel system.
• ⚠️ Support the vehicle with jack stands; never rely on a jack alone.

---

🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Fire extinguisher Class B
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Metric socket set (8mm-18mm)
• 3/8" drive ratchet
• 6" socket extension
• Torque wrench (10-200 Nm range)
• Flat-blade screwdriver
• Trim removal tool set
• Fuel line quick-disconnect tool set (specialty)
• Brass drift punch set (specialty)
• Hammer
• Drain pan
• Shop towels
• OBD2 scan tool (specialty)

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel pump module assembly - Qty: 1
• Fuel pump module seal O-ring - Qty: 1
• Fuel line retaining clips - Qty: 1

---

📋 Before You Begin

• 🧭 Park on level ground, set the parking brake, and chock the rear wheels.
• 🔋 Disconnect the negative battery cable using a 10mm socket.
• ⛽ Plan to work with a low fuel level (about 1/4 tank or less) to reduce spill risk and tank weight.
• 🧰 A “fuel line quick-disconnect tool” is a small plastic tool that releases the spring-locks inside GM fuel line fittings.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm which access method your Enclave uses

• Use a trim removal tool set to lift the rear load floor panels and check for a round/oval metal service cover with screws.
• If you see a service cover above the fuel tank area, you likely have an in-cabin access method.
• If there is no service cover, the fuel tank typically must be lowered from underneath.

Step 2: Answer these 2 quick questions so I can give you exact steps + torque specs

• Do you have a service access cover inside the cabin/cargo area above the fuel tank (yes/no)?
• Are you replacing the complete fuel pump module assembly (recommended) or only the pump motor?

Tip: Reply “access cover yes/no” + “module/motor”.

---

✅ After Repair

• 🔎 After installation, cycle the ignition ON for 5 seconds, OFF for 10 seconds, and repeat 3 times to prime the system.
• 🧼 Check carefully for fuel smell/leaks at the module seal and all line connections.
• 🧾 Clear any stored codes with an OBD2 scan tool (specialty), then recheck for returning codes.

---

💰 DIY vs Shop Cost

Shop Cost: $900-$1,800 (parts + labor)

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

You Save: $650-$1,150 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 3-6 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.