🔧 Sedona - Water Pump Replacement

The water pump circulates coolant through your engine and radiator. When it leaks or the bearing wears out, you can overheat quickly, so replacement is important to protect the engine.

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

Assumption: Your Sedona uses an external (serpentine-belt-driven) water pump.

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⚠️ Safety & Precautions

• 🛑 Work only on a fully cool engine (hot coolant can burn).
• 🛑 Support the van with jack stands; never rely on a floor jack.
• 🛑 Coolant is toxic—use a drain pan and clean spills immediately.
• 🛑 Keep hands/tools clear of the radiator fans (they can turn on unexpectedly).
• 🛑 Disconnect the negative battery terminal if you’ll be near fan wiring.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Wheel chocks
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Drain pan (at least 10-quart)
• Funnel
• Shop towels
• Trim clip removal tool
• Flat blade screwdriver
• Pliers (hose clamp pliers)
• Ratchet (3/8" drive)
• Socket set: 10mm, 12mm, 14mm, 17mm, 19mm
• Extension set (3" and 6")
• Breaker bar (3/8" or 1/2" drive)
• Serpentine belt tool or 14mm wrench
• Torque wrench (in-lb)
• Torque wrench (ft-lb)
• Plastic gasket scraper
• Brake cleaner spray

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Water pump - Qty: 1
• Water pump gasket / O-ring (as equipped) - Qty: 1
• Engine coolant (Asian vehicle long-life, phosphate-free) - Qty: 2 gallons
• Serpentine drive belt - Qty: 1
• Hose clamps - Qty: 2

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📋 Before You Begin

• 🧰 Park on level ground, set the parking brake, and chock the rear wheels.
• 🧰 Let the engine cool completely (preferably overnight).
• 🧰 Set HVAC to heat (HOT) so coolant can flow through the heater core during bleeding.
• 🧰 If you choose to disconnect the battery: use a 10mm socket to remove the negative terminal and isolate it.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise the front and remove access covers

• Use wheel chocks behind the rear wheels.
• Use a floor jack (rated 3-ton minimum) to lift the front, then support with jack stands (rated 3-ton minimum).
• If needed for access, remove the lower splash shield using a trim clip removal tool and flat blade screwdriver.

Step 2: Drain the coolant

• Place a drain pan (at least 10-quart) under the radiator area.
• Slowly open the radiator cap to release any residual pressure (engine must be cool).
• Drain coolant from the radiator drain (petcock) if equipped; use a flat blade screwdriver if the drain uses a slotted head.
• If there is no easy drain, remove the lower radiator hose clamp using pliers (hose clamp pliers) and carefully pull the hose off.

Step 3: Remove the serpentine belt

• Take a quick photo of the belt routing before removal.
• Relieve tension using a serpentine belt tool or 14mm wrench on the belt tensioner.
• Slip the belt off one pulley, then remove it from the rest.
• A tensioner is a spring-loaded belt arm.

Step 4: Remove water pump pulley (if equipped)

• If the pump uses a bolt-on pulley, loosen the pulley bolts before removing the pump.
• Use a ratchet (3/8" drive) with the correct socket (commonly 10mm or 12mm socket).
• Remove the pulley once bolts are out.
• Torque on install: Torque to 20 Nm (15 ft-lbs)

Step 5: Remove hoses at the water pump (as needed)

• Position the drain pan (at least 10-quart) under the pump area.
• Use pliers (hose clamp pliers) to slide clamps back, then twist hoses gently to break them free.
• Twist first—don’t pry hard on fittings.

Step 6: Remove the water pump

• Remove the water pump mounting bolts using a ratchet (3/8" drive) with 10mm socket and/or 12mm socket, plus extensions (3" and 6") as needed.
• Keep bolts organized by location (some may be different lengths).
• Remove the pump from the engine.

Step 7: Clean the sealing surface

• Use a plastic gasket scraper to remove old gasket material from the engine.
• Spray brake cleaner spray on a shop towel and wipe until the surface is clean and dry.
• No gouges—scratches can cause leaks.

Step 8: Install the new water pump and gasket/O-ring

• Install the new water pump gasket / O-ring onto the pump (match the old layout).
• Position the pump and hand-start all bolts to avoid cross-threading.
• Tighten bolts evenly in a criss-cross pattern using a ratchet (3/8" drive).
• Final tighten using a torque wrench (in-lb): Torque to 11 Nm (97 in-lbs)
• Even tightening prevents warped sealing.

Step 9: Reinstall hoses, pulley, and serpentine belt

• Reinstall hoses and clamps using pliers (hose clamp pliers).
• Reinstall the pulley (if equipped) using a ratchet (3/8" drive) and correct socket.
• Route the belt per your photo, then use the serpentine belt tool or 14mm wrench to set tension and slip the belt on.
• Visually confirm the belt is seated in every pulley groove.

Step 10: Refill and bleed the cooling system

• Lower the vehicle from the jack stands (rated 3-ton minimum) using the floor jack (rated 3-ton minimum).
• Refill coolant using a funnel with the correct engine coolant (Asian vehicle long-life, phosphate-free).
• Start the engine and let it idle with the heater on HOT and fan on low.
• As the engine warms up, top off coolant as the level drops.
• When the radiator fan cycles and heat blows hot, install the radiator cap.
• Shut down, let cool, then recheck and top off overflow bottle.

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✅ After Repair

• 🧪 Check for leaks around the water pump and any hoses while idling.
• 🧪 Verify the temperature gauge stays normal during a 10–15 minute drive.
• 🧪 After the next full cool-down, recheck coolant level in the overflow bottle and top off if needed.
• 🧪 Listen for belt squeal; if present, re-check belt routing and seating.

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💰 DIY vs Shop Cost

Shop Cost: $650-$1,100 (parts + labor)

DIY Cost: $120-$280 (parts only)

You Save: $530-$820 by doing it yourself!

Shop labor rates vary but typically run $100-$150/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.