🔧 F-150 - Engine Mount Replacement

Replacing the engine mounts supports the engine correctly and reduces vibration, clunks, and drivetrain movement. On your F-150, the job is mainly about safely supporting the engine, unbolting the mounts, and installing the new ones without stressing hoses, wiring, or the exhaust.

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

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⚠️ Safety & Precautions

• ⚠️ Support the engine before removing any mount; an unsupported engine can shift suddenly.
• ⚠️ Work on a flat surface; use jack stands under the frame, not just a jack.
• ⚠️ Keep hands clear when raising/lowering the engine with the jack.
• ⚠️ Do not lift on the oil pan without a wide wood block; the block spreads the load to prevent damage.
• ⚠️ Let the exhaust cool completely before starting.
• ⚠️ Battery disconnect is recommended to prevent accidental shorts near the starter wiring.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Mechanic gloves
• Wheel chocks
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Engine support bar (specialty)
• Floor jack (2-ton minimum) for engine support
• Wood block (2x6, 12-18 in long)
• Socket set (8mm-21mm)
• Deep socket set (13mm-21mm)
• Wrench set (13mm-21mm)
• 1/2 in drive breaker bar
• 1/2 in drive torque wrench (20-200 ft-lbs)
• 3/8 in drive ratchet
• 3/8 in drive torque wrench (10-80 ft-lbs)
• Extensions (3 in, 6 in, 12 in)
• Universal joint swivel adapter
• Trim clip removal tool
• Flathead screwdriver
• Penetrating oil
• Paint marker
• Shop light

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Left (driver-side) engine mount - Qty: 1
• Right (passenger-side) engine mount - Qty: 1
• Engine mount hardware kit - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and chock the rear wheels.
• Open the hood and remove the ignition key.
• Use an 8mm socket to disconnect the negative battery terminal; move it aside so it can’t spring back.
• Raise the front and support the frame with jack stands; leave the suspension hanging for access.
• Spray engine mount fasteners with penetrating oil and let it soak 10-15 minutes.
• Take photos before removing anything.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the lower splash shield (if equipped)

• Use a trim clip removal tool and flathead screwdriver to remove plastic push-pins.
• Use an 8mm socket to remove any small bolts holding the shield.
• Set the shield and clips aside in a tray.

Step 2: Support the engine safely

• Install the engine support bar (specialty) across the fender rails and lightly tension it to take some engine weight.
• Position a floor jack (2-ton minimum) for engine support under the engine with a wood block (2x6, 12-18 in long) between the jack pad and the oil pan.
• Raise the jack just until the wood block contacts firmly; do not lift the truck.
• Lift only enough to unload the mounts.

Step 3: Locate and mark the engine mount positions

• Use a shop light to find the left and right mounts between the engine and the frame brackets.
• Use a paint marker to mark the mount-to-bracket alignment so the new mount sits similarly.

Step 4: Loosen (do not remove yet) the engine-side mount fasteners

• Use a deep socket set (15mm-21mm), extensions (3 in, 6 in, 12 in), and a universal joint swivel adapter as needed.
• Use a 1/2 in drive breaker bar to crack the fasteners loose.
• Leave the fasteners threaded in a few turns for now.

Step 5: Remove the mount-to-frame nuts/bolts

• From underneath, use a deep socket set (15mm-21mm) and 3/8 in drive ratchet to remove the mount-to-frame fasteners.
• If access is tight, use wrench set (13mm-21mm) to hold the opposite side while you loosen with a socket.
• Keep left and right hardware separated.

Step 6: Remove the engine-side fasteners and lift the engine slightly

• Use the socket set (13mm-21mm) to remove the engine-side fasteners you loosened earlier.
• Slowly pump the floor jack (2-ton minimum) for engine support to lift the engine just enough to create a gap above the mount studs.
• Watch hoses, wiring, intake tube, and fan shroud area while lifting; stop if anything pulls tight.

Step 7: Remove the old mount(s)

• Use your hands and a flathead screwdriver to gently pry the mount out of the frame pocket if it’s stuck.
• Note the orientation (which side faces forward).
• If you’re doing both mounts, remove and replace one side at a time to keep alignment easier.

Step 8: Install the new mount

• Place the new mount into the frame bracket by hand.
• Lower or raise the engine slightly using the floor jack (2-ton minimum) for engine support until the studs/holes line up.
• Start all fasteners by hand first to avoid cross-threading.
• If it won’t start by hand, realign—don’t force.

Step 9: Torque the engine mount fasteners

• Snug all fasteners evenly using a 3/8 in drive ratchet and socket set (13mm-21mm).
• Torque fasteners using a 1/2 in drive torque wrench (20-200 ft-lbs).
• Torque to OEM spec for your fastener set (varies by mount design and hardware).
• As a best practice, if you installed new hardware, torque in stages (example: 50%, then 100%).

Step 10: Reinstall the splash shield and reconnect the battery

• Reinstall the shield using an 8mm socket and trim clip removal tool to seat push-pins.
• Reconnect the negative battery terminal using an 8mm socket.

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✅ After Repair

• Start the engine and let it idle; listen for clunks or rubbing.
• With your foot on the brake, shift from Park to Reverse to Drive and back; watch for excessive engine movement.
• Road test at low speed; recheck for vibrations on acceleration and deceleration.
• Recheck all visible fasteners for tightness after the first short drive.

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💰 DIY vs Shop Cost

Shop Cost: $600-$1,300 (parts + labor)

DIY Cost: $120-$450 (parts only)

You Save: $480-$850 by doing it yourself!

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