🔧 Traverse - Water Pump Replacement

On your Traverse, the water pump circulates coolant through the engine and radiator. When it leaks or the bearing wears out, you can get coolant loss, overheating, or squealing/grinding noises. This job involves draining coolant, removing the drive belt, swapping the pump, then refilling and bleeding the cooling system.

Difficulty Level: Advanced | Estimated Time: 3-5 hours

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⚠️ Safety & Precautions

• ⚠️ Never open the coolant tank when hot; let the engine cool fully.
• ⚠️ Electric cooling fans can turn on by themselves; keep hands/tools clear.
• ⚠️ Use jack stands if you lift the vehicle; never rely on a jack.
• ⚠️ Clean spilled coolant immediately; it’s toxic and slippery.
• 🔋 Recommended: disconnect the negative battery cable before working near the radiator fans.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Drain pan (at least 10-liter)
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• 3/8" drive ratchet
• 1/4" drive ratchet
• Socket set: 7mm, 8mm, 10mm, 13mm, 15mm
• 3/8" drive torque wrench (10-100 Nm range)
• Trim clip removal tool
• Flat-blade screwdriver
• Serpentine belt tool 3/8" drive (specialty)
• Hose clamp pliers (specialty)
• Gasket scraper (plastic)
• Shop rags
• Funnel

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Water pump - Qty: 1
• Water pump gasket / seal - Qty: 1
• Dex-Cool coolant (50/50 premix) - Qty: 2-3 gallons
• Serpentine drive belt - Qty: 1 (recommended if belt is cracked/glazed)

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📋 Before You Begin

• Park on level ground, set the parking brake, and install wheel chocks.
• Let the engine cool completely (coolant should be cold to the touch).
• Disconnect the negative battery cable using a 10mm socket (helps prevent fan surprises).
• If you raise the front, lift with a floor jack and support with jack stands under proper lift points.
• Tip: Take a quick photo of the belt routing.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Relieve cooling system pressure

• Remove the coolant surge tank cap slowly (only when cold). Use a shop rag to protect your hand.

Step 2: Drain the coolant

• Place a drain pan under the radiator drain area.
• If equipped with an access panel/splash shield, remove fasteners using a 7mm socket and a trim clip removal tool.
• Open the drain and let coolant flow into the pan. Use a flat-blade screwdriver if the drain style requires it.

Step 3: Remove the engine cover and air intake ducting (as needed for access)

• Lift off the engine cover by hand (it’s typically held by push-in grommets).
• Loosen intake clamps using an 8mm socket or flat-blade screwdriver, then move the ducting out of the way for working room.

Step 4: Remove the serpentine drive belt

• Install a serpentine belt tool 3/8" drive (specialty) into the belt tensioner. (A serpentine belt tool is a long handle that reaches the tensioner in tight spaces.)
• Rotate the tensioner to release belt tension, then slide the belt off a smooth pulley.
• Remove the belt from the water pump pulley area and set it aside.

Step 5: Remove the water pump pulley (if equipped/separate)

• Hold the pulley from turning by keeping light tension on the belt or by hand, then remove pulley bolts using a 10mm socket.
• Remove the pulley and set it aside.
• Torque to 25 Nm (18 ft-lbs) on reassembly (pulley bolts).

Step 6: Disconnect hoses from the water pump

• Use hose clamp pliers (specialty) to compress and slide the hose clamps back.
• Carefully twist and pull hoses off the pump. Use a shop rag to catch remaining coolant.
• Tip: Twist first—don’t pry hard on plastic fittings.

Step 7: Remove the water pump

• Remove the water pump mounting bolts using a 10mm socket and 3/8" drive ratchet.
• Pull the pump straight off the engine.
• Clean the mating surface using a plastic gasket scraper and shop rags (do not gouge the aluminum).

Step 8: Install the new water pump and gasket

• Install the new gasket/seal onto the new pump (match the old one’s orientation).
• Position the pump and hand-start all bolts to avoid cross-threading.
• Tighten water pump bolts evenly using a 3/8" drive torque wrench.
• Torque to 10 Nm (89 in-lbs) for water pump bolts.

Step 9: Reconnect hoses and reinstall the pulley

• Reinstall hoses fully seated, then move clamps back into position using hose clamp pliers (specialty).
• Reinstall the pulley and tighten bolts using a 10mm socket.
• Torque to 25 Nm (18 ft-lbs) on pulley bolts.

Step 10: Reinstall the serpentine belt

• Route the belt using the underhood belt routing diagram (or the photo you took).
• Rotate the tensioner with the serpentine belt tool 3/8" drive (specialty), then slip the belt onto the last pulley.
• Visually confirm the belt is centered in every pulley groove.

Step 11: Refill coolant and bleed air

• Close the radiator drain.
• Fill the surge tank using a funnel with Dex-Cool coolant (50/50 premix) to the proper level.
• Reconnect the negative battery cable using a 10mm socket.
• Start the engine and set heat to MAX/HOT. Let it idle and watch the coolant level.
• As the thermostat opens, the level may drop—top off as needed.
• Shut off the engine, let it cool, then recheck and top off again to the correct mark.

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✅ After Repair

• Inspect for leaks around the water pump and hose connections with the engine running.
• Verify the heater blows hot air and the temperature gauge stays normal.
• After your first drive, let it cool and recheck coolant level again (air can burp out).
• If you see any coolant smell, dripping, or rising temperature, stop and recheck hose seating and bolt tightness.

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💰 DIY vs Shop Cost

Shop Cost: ₹28,000-₹55,000 (parts + labor)

DIY Cost: ₹6,500-₹18,000 (parts only)

You Save: ₹21,500-₹37,000 by doing it yourself!

Shop labor rates vary but typically run ₹3,000-₹6,000/hour. This repair takes a shop approximately 3-5 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.