🔧 Sonata - Engine Mount Replacement

Your Sonata has multiple mounts (right engine mount, left transmission mount, and front/rear “torque” mounts). The steps, access, and torque specs are different for each one, so I need to confirm which mount(s) you’re replacing before I give the exact bolt-by-bolt procedure.

Difficulty Level: Advanced | Estimated Time: 1.5-5.0 hours

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⚠️ Safety & Precautions

• ⚠️ Do not work under the car supported only by a jack; always use jack stands.
• ⚠️ A mount job requires supporting the engine; if it slips, it can crush hands or damage wiring/hoses.
• ⚠️ Plug-in hybrid: keep the car OFF (not READY), key/fob at least 10+ feet away, and do not press the brake pedal while working.
• ⚠️ If you’ll be near the starter/alternator area or main harnesses, disconnect the 12V negative cable first.
• ⚠️ Never touch or open orange high-voltage cables/connectors.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Mechanic gloves
• 3/8" drive ratchet
• 1/2" drive breaker bar
• Socket set 10mm-22mm
• Wrench set 10mm-22mm
• Torque wrench 10-200 Nm
• Trim clip removal tool
• Phillips screwdriver
• Flathead screwdriver
• Panel fastener pliers
• Jack pad block of wood 2x6"
• Engine support bar (specialty)

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Right (passenger-side) engine mount - Qty: 1
• Left (driver-side) transmission mount - Qty: 1
• Front torque mount - Qty: 1
• Rear torque mount - Qty: 1
• Engine mount bracket bolts - Qty: 1 set

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📋 Before You Begin

• Park on level ground, set the parking brake, and chock the rear wheels.
• Confirm the car is OFF and not in READY; keep the key/fob away from the car.
• If you’ll remove any intake ducting/engine cover, let the engine cool first.
• Plan how you will support the engine: an engine support bar holds the engine from above (safer than lifting from below).
• If working near electrical connectors, disconnect the 12V negative terminal using a 10mm socket.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Identify which mount you’re replacing

• Open the hood and remove the engine cover (if equipped) by pulling up firmly by hand.
• Locate mounts:
  • Right engine mount: passenger-side, near the coolant reservoir/strut tower area.
  • Left transmission mount: driver-side, under/near the battery tray area.
  • Front/rear torque mount(s): lower mounts that control engine rocking; accessed from under the car.
• If you can, upload a photo of the mount area you plan to replace (top view or under-car view).

Step 2: Do a quick “load test” to confirm the bad mount

• With the hood open, have a helper sit in the driver seat.
• Keep your feet and hands clear of moving parts.
• Have the helper press the brake firmly and shift from Park to Reverse, then Reverse to Drive (briefly), while you watch for excessive engine lift/rock.
• Stop if the engine jumps hard or clunks; that usually points to a torque mount or a torn upper mount.

Step 3: Tell me these two details so I can give the exact procedure + torque specs

• Which mount(s) are you replacing: right engine mount, left transmission mount, front torque mount, or rear torque mount?
• Do you have an engine support bar (preferred), or only a floor jack + wood block to support the engine?

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✅ After Repair

• Start the car and confirm there’s no new vibration at idle.
• Test Drive: slow accel/decel and light braking; listen for clunks.
• Recheck all fasteners you touched after the test drive.

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💰 DIY vs Shop Cost

Shop Cost: $450-$1,400 (parts + labor, depends on which mount)

DIY Cost: $80-$500 (parts only, depends on which mount)

You Save: $250-$900 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-5.0 hours.

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🎯 Ready to get started?

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