🔧 Focus - Timing Belt Replacement

Your Focus uses a 1.0L EcoBoost wet timing belt that runs inside the engine oil. Replacing it is a major precision repair: the engine must be locked in exact time, the right engine mount must be removed, and the timing cover must be resealed correctly.

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

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⚠️ Safety & Precautions

• ⚠️ This is an interference engine, so incorrect timing can cause piston-to-valve contact and severe engine damage.
• ⚠️ Disconnect the negative battery cable before starting.
• ⚠️ Support the engine before removing the right engine mount.
• ⚠️ Use the Ford 1.0L EcoBoost timing locking tool kit. Do not rely on paint marks.
• ⚠️ Keep old belt debris out of the engine. Wet belt rubber can clog the oil pickup screen and cause oil starvation.
• ⚠️ Do not rotate the crankshaft or camshafts independently once the belt is removed.
• ⚠️ If the timing tools do not fit after rotating the engine by hand, do not start the engine.

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🔧 Required Tools

You'll need the following tools for this repair:

• 7mm socket
• 8mm socket
• 10mm socket
• 13mm socket
• 15mm socket
• 18mm socket
• 21mm socket
• 8mm wrench
• 10mm wrench
• 13mm wrench
• 15mm wrench
• 1/4-inch drive ratchet
• 3/8-inch drive ratchet
• 1/2-inch drive breaker bar
• Torque wrench 5-60 Nm
• Torque wrench 40-200 Nm
• Torque angle gauge (specialty)
• Ford 1.0L EcoBoost timing tool kit (specialty)
• Camshaft alignment plate (specialty)
• Crankshaft timing pin (specialty)
• Flywheel locking tool (specialty)
• Crankshaft pulley holding tool (specialty)
• Engine support bar (specialty)
• Serpentine belt tool (specialty)
• Oil filter cap socket
• Hose clamp pliers
• Plastic trim removal tool
• Plastic scraper
• Nylon gasket cleaning brush
• Drain pan 10-quart minimum
• Funnel
• Flashlight
• Floor jack rated 2-ton minimum
• Jack stands rated 2-ton minimum
• Wheel chocks
• Safety glasses
• Nitrile gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Wet timing belt kit - Qty: 1
• Timing belt tensioner - Qty: 1
• Timing belt idler pulley - Qty: 1
• Oil pump belt - Qty: 1
• Oil pump belt tensioner - Qty: 1
• Front crankshaft seal - Qty: 1
• Crankshaft pulley bolt - Qty: 1
• Camshaft sprocket bolts - Qty: 2
• Right engine mount bolts - Qty: As required
• Valve cover gasket - Qty: 1
• Timing cover sealant - Qty: 1
• Oil pan sealant - Qty: 1
• Engine oil 5W-20 full synthetic - Qty: 4.3 quarts
• Engine oil filter - Qty: 1
• Accessory drive belt - Qty: 1
• Ford-compatible coolant - Qty: As needed

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📋 Before You Begin

• 🚗 Park your Focus on level ground and set the parking brake.
• 🧱 Put wheel chocks behind the rear wheels.
• 🔋 Use a 10mm wrench to disconnect the negative battery cable.
• 🛢️ Drain the engine oil before removing the front timing cover.
• 📸 Take photos before removing hoses, brackets, wiring clips, and bolts.
• 🧰 A timing locking tool holds the crankshaft and camshafts in their exact factory positions.
• 🧼 Keep clean rags nearby so dirt and old belt pieces do not fall into the engine.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise and Secure the Vehicle

• Use wheel chocks behind both rear wheels.
• Use a floor jack rated 2-ton minimum to lift the front of your Focus.
• Place jack stands rated 2-ton minimum under the proper front support points.
• Lower the vehicle onto the jack stands.
• Gently shake the vehicle to confirm it is stable.
• Never trust the jack alone.

Step 2: Disconnect the Battery

• Use a 10mm wrench to loosen the negative battery terminal.
• Move the cable away from the battery post so it cannot touch by accident.

Step 3: Remove Lower Shields and Engine Cover

• Use a 7mm socket and 8mm socket to remove the lower splash shield fasteners.
• Use a plastic trim removal tool to remove plastic clips.
• Lift off the upper engine cover by hand if equipped.

Step 4: Drain the Engine Oil

• Place a drain pan 10-quart minimum under the oil pan.
• Use the correct socket to remove the oil drain plug.
• Let the oil drain until it slows to a drip.
• Use an oil filter cap socket to remove the oil filter cap and old filter.
• Reinstall the drain plug and tighten it to Torque to 27 Nm (20 ft-lbs).

Step 5: Remove Intake Ducts and Brackets

• Use a 7mm socket to loosen intake hose clamps.
• Use hose clamp pliers to release spring clamps.
• Use a plastic trim removal tool to release wiring clips from brackets.
• Use 8mm, 10mm, and 13mm sockets to remove brackets blocking the front timing cover.

Step 6: Remove the Accessory Drive Belt

• Use a serpentine belt tool to rotate the accessory belt tensioner.
• The tensioner is a spring-loaded pulley that keeps the belt tight.
• Slide the accessory drive belt off the pulleys.
• Slowly release the tensioner with the serpentine belt tool.

Step 7: Support the Engine

• Install the engine support bar across the top of the engine bay.
• Attach the support hook to the engine lifting point.
• Apply only light upward tension.
• The support bar holds the engine while the right mount is removed.

Step 8: Remove the Right Engine Mount

• Use 15mm and 18mm sockets to remove the right engine mount fasteners.
• Lift the right engine mount out of the engine bay.
• Keep the engine supported until the mount is reinstalled.
• Discard stretch bolts if your replacement kit includes new ones.

Step 9: Remove the Valve Cover

• Use a plastic trim removal tool to release wiring retainers from the valve cover.
• Use 8mm and 10mm sockets to remove valve cover bolts and small brackets.
• Lift the valve cover straight up.
• Remove the old valve cover gasket.
• Use a plastic scraper to gently clean the sealing surface.

Step 10: Set the Engine to Top Dead Center

• Use a 1/2-inch drive breaker bar and 21mm socket on the crankshaft pulley bolt.
• Rotate the engine clockwise only.
• Top dead center means piston number 1 is at the top of its travel on the correct stroke.
• Install the crankshaft timing pin from the Ford 1.0L EcoBoost timing tool kit.
• Install the camshaft alignment plate at the rear of the camshafts.
• If the tools do not slide in smoothly, rotate the crankshaft clockwise one full turn and try again.

Step 11: Lock the Engine Timing

• Use the flywheel locking tool to hold the crankshaft steady.
• Confirm the crankshaft timing pin is fully seated.
• Confirm the camshaft alignment plate sits flat against the camshafts.
• Do not force the timing tools into place.

Step 12: Remove the Crankshaft Pulley

• Use the crankshaft pulley holding tool to hold the pulley still.
• Use a 1/2-inch drive breaker bar and 21mm socket to loosen the crankshaft pulley bolt.
• Remove the crankshaft pulley.
• Discard the old crankshaft pulley bolt.

Step 13: Remove the Front Timing Cover

• Use 8mm, 10mm, and 13mm sockets to remove the front timing cover bolts.
• Organize the bolts by location because lengths may be different.
• Use a plastic scraper to gently separate the timing cover from the engine.
• Do not scratch or gouge the aluminum sealing surfaces.

Step 14: Check for Old Belt Debris

• Use a flashlight to inspect the lower timing area for rubber crumbs or belt pieces.
• If debris is present, use 8mm and 10mm sockets to remove the oil pan fasteners.
• Use a plastic scraper to separate the oil pan from the engine block.
• Clean the oil pickup screen carefully.
• The oil pickup screen is the small filter screen where the oil pump draws oil from the pan.

Step 15: Release the Timing Belt Tension

• Use the correct socket from the Ford 1.0L EcoBoost timing tool kit to loosen the timing belt tensioner fastener.
• Use the tensioner locking pin from the timing tool kit if supplied.
• Slowly release the timing belt tension.
• Do not move the crankshaft or camshafts after the belt is loose.

Step 16: Remove the Old Timing Belt

• Slide the old wet timing belt off the camshaft sprockets first.
• Remove the belt from the crankshaft sprocket.
• Inspect the belt for cracks, missing teeth, swelling, or rubber shedding.
• If the belt is shedding, clean the oil pan and oil pickup before reassembly.

Step 17: Replace the Oil Pump Belt

• Use 8mm and 10mm sockets to remove the oil pump belt tensioner fasteners as needed.
• Remove the old oil pump belt.
• Install the new oil pump belt and oil pump belt tensioner.
• Use a torque wrench 5-60 Nm to tighten the oil pump belt tensioner fastener to Torque to 10 Nm (89 in-lbs).

Step 18: Install the New Timing Tensioner and Idler

• Use 10mm and 13mm sockets to install the new timing belt idler pulley and tensioner.
• Use a torque wrench 5-60 Nm to tighten the timing belt idler fastener to Torque to 25 Nm (18 ft-lbs).
• Use a torque wrench 5-60 Nm to lightly snug the timing belt tensioner fastener while leaving it adjustable.

Step 19: Install the New Timing Belt

• Route the new wet timing belt around the crankshaft sprocket first.
• Keep the straight side of the belt tight while routing it over the camshaft sprockets.
• Use the crankshaft timing pin and camshaft alignment plate to confirm nothing moved.
• Do not pry the belt on with a screwdriver.

Step 20: Set Belt Tension

• Use the timing belt tensioner tool from the Ford 1.0L EcoBoost timing tool kit to position the tensioner.
• Use a torque wrench 5-60 Nm to tighten the tensioner fastener to Torque to 25 Nm (18 ft-lbs).
• Check that the tensioner indicator lines up correctly according to the timing tool instructions.

Step 21: Verify Timing by Hand

• Remove the crankshaft timing pin, camshaft alignment plate, and flywheel locking tool.
• Use a 1/2-inch drive breaker bar and 21mm socket to rotate the crankshaft clockwise two full turns.
• Return the engine to top dead center.
• Reinstall the crankshaft timing pin and camshaft alignment plate.
• Both tools must fit smoothly.
• If the tools do not fit, remove the belt and reset the timing before continuing.
• Do not skip this check.

Step 22: Replace the Front Crankshaft Seal

• Use the seal removal tool from the Ford 1.0L EcoBoost timing tool kit to remove the old front crankshaft seal.
• Use a plastic scraper carefully around the crank seal area.
• Lightly coat the new seal lip with clean 5W-20 engine oil.
• Use the seal driver from the timing tool kit to press the new seal in straight.

Step 23: Reinstall the Timing Cover and Oil Pan

• Use a nylon gasket cleaning brush to clean the timing cover sealing surfaces.
• Apply timing cover sealant in a smooth, continuous bead.
• Install the front timing cover and hand-start all bolts.
• Use 8mm, 10mm, and 13mm sockets to snug the timing cover bolts evenly.
• Use a torque wrench 5-60 Nm to tighten small timing cover bolts to Torque to 10 Nm (89 in-lbs).
• If the oil pan was removed, apply oil pan sealant and reinstall the oil pan.
• Use a torque wrench 5-60 Nm to tighten oil pan bolts to Torque to 10 Nm (89 in-lbs).

Step 24: Reinstall the Crankshaft Pulley

• Install the crankshaft pulley by hand.
• Thread in the new crankshaft pulley bolt.
• Use the crankshaft pulley holding tool to hold the pulley.
• Use a torque wrench 40-200 Nm and torque angle gauge to tighten the crankshaft pulley bolt to Torque to 100 Nm (74 ft-lbs) plus 90 degrees.

Step 25: Reinstall the Valve Cover

• Install the new valve cover gasket into the valve cover groove.
• Set the valve cover straight down onto the cylinder head.
• Use an 8mm socket to hand-start all valve cover bolts.
• Use a torque wrench 5-60 Nm to tighten valve cover bolts evenly to Torque to 10 Nm (89 in-lbs).

Step 26: Reinstall the Right Engine Mount

• Set the right engine mount back in place.
• Install new mount bolts if supplied.
• Use 15mm and 18mm sockets to snug the mount fasteners.
• Use a torque wrench 40-200 Nm and torque angle gauge to tighten new mount bolts according to the instructions supplied with the bolts.
• Remove the engine support bar only after the mount is fully tightened.

Step 27: Reinstall the Accessory Belt and Intake Parts

• Use the serpentine belt tool to rotate the belt tensioner.
• Route the new accessory drive belt over the pulleys.
• Release the belt tensioner slowly.
• Use a 7mm socket to tighten the intake hose clamps.
• Use 8mm, 10mm, and 13mm sockets to reinstall brackets and covers.

Step 28: Refill Oil and Reconnect the Battery

• Use an oil filter cap socket to install the new oil filter.
• Use a funnel to add 4.3 quarts of 5W-20 full synthetic engine oil.
• Refill Ford-compatible coolant if any coolant was drained.
• Use a 10mm wrench to reconnect the negative battery cable.

Step 29: Start and Check Your Work

• Start the engine and let it idle.
• Shut the engine off immediately if the oil pressure warning light stays on.
• Use a flashlight to check for oil leaks at the timing cover, oil pan, valve cover, crank seal, and oil filter.
• Listen for rattling, knocking, belt slapping, or rough idle.

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✅ After Repair

• ✅ Let the engine reach full operating temperature while watching for leaks.
• ✅ Shut the engine off, wait 5 minutes, and recheck the oil level.
• ✅ Top off coolant if any was drained.
• ✅ Road test gently for 10-15 minutes.
• ✅ Recheck the timing cover, oil pan, valve cover, crank seal, and oil filter for leaks.
• ✅ If the engine runs rough or sets cam/crank timing codes, stop driving and recheck the timing setup.

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💰 DIY vs Shop Cost

Shop Cost: $1,800-$3,200 (parts + labor)

DIY Cost: $350-$850 (parts only)

You Save: $1,000-$2,350 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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