🔧 Fusion - Timing Drive Inspection

Your Fusion’s 2.5L engine does not use a timing belt. It uses an internal timing chain, which is designed to last much longer than a belt and is not a normal maintenance replacement item.

If you are hearing rattling, have timing-related fault codes, or suspect chain stretch, the repair is an advanced internal engine job involving the timing cover, crankshaft pulley, cam timing components, and engine sealing surfaces.

Difficulty Level: Advanced | Estimated Time: 8-12 hours

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⚠️ Safety & Precautions

• ⚠️ Disconnect the negative battery cable before working near the starter, accessory drive, or engine wiring.
• ⚠️ Support the engine correctly before removing any engine mount parts. The engine can shift or drop if unsupported.
• ⚠️ Do not rotate the crankshaft or camshafts with the timing chain removed unless the service procedure specifically allows it.
• ⚠️ This is an internal engine timing repair. Incorrect timing can cause a no-start, poor running, or engine damage.
• ⚠️ Let the engine cool fully before draining coolant or removing the front cover.

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🔧 Required Tools

You'll need the following tools for this repair:

• 8mm socket
• 10mm socket
• 13mm socket
• 15mm socket
• 18mm socket
• 21mm socket
• 1/2-inch drive breaker bar
• 1/2-inch drive torque wrench
• 3/8-inch drive torque wrench
• Ratchet set
• Socket extension set
• Serpentine belt tool
• Crankshaft pulley holding tool (specialty)
• Crankshaft pulley puller (specialty)
• Camshaft holding tool set (specialty)
• Crankshaft timing peg (specialty)
• Plastic scraper
• Gasket remover tool
• Engine support bar (specialty)
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Drain pan
• Coolant funnel kit
• Shop towels
• Safety glasses
• Nitrile gloves

A timing peg locks the crankshaft in the correct position.

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Timing chain kit - Qty: 1
• Timing chain tensioner - Qty: 1
• Timing chain guides - Qty: 1 set
• Front timing cover gasket/seal kit - Qty: 1
• Crankshaft front seal - Qty: 1
• Valve cover gasket - Qty: 1
• Crankshaft pulley bolt - Qty: 1
• Engine mount bolts - Qty: as removed
• RTV engine sealant - Qty: 1 tube
• Engine oil - Qty: 5.7 quarts
• Oil filter - Qty: 1
• Engine coolant - Qty: as needed
• Serpentine belt - Qty: 1

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📋 Before You Begin

• Park your Fusion on level ground and set the parking brake.
• Open the hood and let the engine cool completely.
• Use a 10mm socket to disconnect the negative battery cable.
• Raise the front of the vehicle with a floor jack and support it with jack stands.
• Place a drain pan under the engine before draining coolant or oil.
• This job requires holding the crankshaft and camshafts in exact position. Do not attempt it without the listed timing tools.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Verify the Engine Uses a Timing Chain

• Your Fusion’s 2.5L engine uses a timing chain, not a timing belt.
• A timing chain is a metal chain inside the engine that keeps the crankshaft and camshafts synchronized.
• If your goal was routine timing belt maintenance, no timing belt service is required on this engine.

Step 2: Disconnect the Battery

• Use a 10mm socket to loosen the negative battery terminal clamp.
• Move the negative cable aside so it cannot touch the battery post.
• Take a photo before removing connectors.

Step 3: Raise and Support the Vehicle

• Use a floor jack to lift the front of your Fusion at the correct front jacking point.
• Place jack stands under the proper support points before going underneath.
• Gently lower the vehicle onto the stands and shake the vehicle lightly to confirm it is stable.

Step 4: Drain Engine Oil and Coolant

• Place a drain pan under the engine oil drain plug.
• Use the correct-size socket from your ratchet set to remove the oil drain plug.
• Drain the engine oil, then reinstall the drain plug and torque to 27 Nm (20 ft-lbs).
• Move the drain pan under the cooling system drain area and drain coolant as needed.

Step 5: Remove Engine Covers and Access Panels

• Use an 8mm socket and 10mm socket to remove lower splash shield fasteners.
• Remove any upper engine covers by hand or with a 10mm socket, depending on fastener style.
• Keep bolts grouped by location so reassembly is easier.

Step 6: Remove the Serpentine Belt

• Use a serpentine belt tool to rotate the belt tensioner and release belt tension.
• A serpentine belt tool is a long, flat wrench that reaches tight belt tensioners.
• Slide the belt off the pulleys and remove it from the engine bay.
• Draw the belt path before removal.

Step 7: Support the Engine

• Install an engine support bar across the upper body support points.
• An engine support bar holds the engine from above when a mount is removed.
• Apply light tension to support the engine, but do not lift it aggressively.

Step 8: Remove the Right-Side Engine Mount Area

• Use 15mm socket and 18mm socket to remove the right-side engine mount fasteners as needed for timing cover access.
• Keep track of bolt length and position.
• Do not remove the mount until the engine is safely supported.

Step 9: Remove the Valve Cover

• Disconnect ignition coil and sensor connectors by hand.
• Use an 8mm socket or 10mm socket to remove valve cover fasteners.
• Lift the valve cover straight up. Use a plastic scraper only if the gasket sticks.
• Do not gouge the aluminum sealing surface.

Step 10: Set the Engine to Timing Position

• Use a 21mm socket and 1/2-inch drive breaker bar on the crankshaft pulley bolt.
• Rotate the engine clockwise only until cylinder 1 is at top dead center.
• Top dead center means the piston is at the top of its travel on the compression stroke.
• Install the crankshaft timing peg and camshaft holding tool set according to the tool instructions.

Step 11: Remove the Crankshaft Pulley

• Install the crankshaft pulley holding tool to keep the pulley from turning.
• Use a 21mm socket and 1/2-inch drive breaker bar to loosen the crankshaft pulley bolt.
• Use a crankshaft pulley puller to remove the pulley without prying.
• Discard the old crankshaft pulley bolt if it is torque-to-yield.

Step 12: Remove the Front Timing Cover

• Use 8mm socket, 10mm socket, and 13mm socket to remove the front timing cover bolts.
• Note bolt locations because lengths may vary.
• Use a plastic scraper and gasket remover tool to separate the cover gently.
• Do not bend the timing cover or damage the sealing surface.

Step 13: Remove the Timing Chain Components

• Confirm the camshaft holding tool set and crankshaft timing peg are still installed.
• Use a 10mm socket or 13mm socket to remove the timing chain tensioner and guides.
• Remove the timing chain from the sprockets.
• Do not rotate the crankshaft or camshafts after chain removal.

Step 14: Install the New Timing Chain

• Compare the new timing chain kit with the removed components.
• Align the marked chain links with the timing marks on the crankshaft and camshaft sprockets.
• Install the new guides using a 10mm socket or 13mm socket.
• Install the new tensioner and release it only after all timing marks are aligned.
• Torque guide and tensioner fasteners to OEM specification for the exact component location.

Step 15: Rotate and Recheck Timing

• Remove the timing tools only as directed by the tool procedure.
• Use a 21mm socket and 1/2-inch drive breaker bar to rotate the engine clockwise two full turns by hand.
• Reinstall the crankshaft timing peg and camshaft holding tool set to verify alignment.
• If the tools do not fit correctly, stop and reset the timing before reassembly.

Step 16: Clean and Reseal the Timing Cover

• Use a plastic scraper and shop towels to clean old sealant from the cover and engine block.
• Apply RTV engine sealant only in the factory sealing areas.
• Install the new crankshaft front seal into the timing cover if not preinstalled.
• Install the cover carefully without smearing the sealant.

Step 17: Reinstall the Front Cover and Pulley

• Use 8mm socket, 10mm socket, and 13mm socket to install timing cover bolts by hand first.
• Tighten timing cover bolts evenly in stages.
• Install the crankshaft pulley using the proper installer or hand-start method if specified by the pulley tool instructions.
• Use the crankshaft pulley holding tool, 21mm socket, and 1/2-inch drive torque wrench to tighten the new crankshaft pulley bolt.
• Torque crankshaft pulley bolt to OEM torque-plus-angle specification.

Step 18: Reinstall the Valve Cover

• Install the new valve cover gasket into the valve cover groove.
• Use a 10mm socket to install valve cover bolts by hand first.
• Tighten bolts evenly from the center outward.
• Torque valve cover bolts to 10 Nm (89 in-lbs).

Step 19: Reinstall Engine Mount and Belt

• Use 15mm socket and 18mm socket to reinstall the right-side engine mount parts.
• Torque engine mount fasteners to OEM specification for each bolt location.
• Use the serpentine belt tool to rotate the tensioner and install the new serpentine belt.
• Check that the belt ribs sit correctly in every pulley groove.

Step 20: Refill Fluids and Reconnect Battery

• Install a new oil filter by hand and refill the engine with 5.7 quarts of engine oil.
• Use a coolant funnel kit to refill coolant and reduce trapped air.
• Use a 10mm socket to reconnect the negative battery cable.
• Start the engine and check immediately for oil or coolant leaks.

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✅ After Repair

• ✅ Let the engine idle and listen for abnormal chain rattle, knocking, or scraping.
• ✅ Watch the oil pressure warning light. Shut the engine off if it stays on.
• ✅ Check for coolant leaks around the timing cover and hoses.
• ✅ Let the engine reach operating temperature, then top off coolant as needed.
• ✅ Road-test gently for 10-15 minutes, then recheck oil level and coolant level.
• ✅ If the check engine light comes on, scan for codes before driving farther.

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💰 DIY vs Shop Cost

Shop Cost: $1,300-$2,200 (parts + labor)

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

You Save: $1,050-$1,550 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 8-12 hours.

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🎯 Ready to get started?

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