🔧 MDX - Engine Mount Replacement

Your MDX uses multiple mounts to hold the engine/transmission in place and control vibration. The exact removal steps (and torque specs) depend on which mount(s) you’re replacing because access, brackets, and support points differ by position.

Difficulty Level: Advanced | Estimated Time: 2-6 hours

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⚠️ Safety & Precautions

• ⚠️ Never work under a vehicle supported only by a jack; use jack stands on solid lift points.
• ⚠️ The engine must be supported before a mount is unbolted; an unsupported engine can shift suddenly.
• ⚠️ Keep hands clear of pinch points while raising/lowering the engine.
• ⚠️ If you’ll be near the radiator fans, disconnect the battery; fans can turn on unexpectedly.
• ⚠️ Do not jack directly on the oil pan without a load spreader; you can crack/dent it.

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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
• 1/2" drive ratchet
• 3/8" drive ratchet
• Socket set (8mm-19mm)
• Wrench set (10mm-19mm)
• Breaker bar (1/2" drive)
• Torque wrench (10-200 ft-lbs range)
• Trim clip tool
• Flathead screwdriver
• Engine support bar (specialty)
• Wood block (2x6, 12"-18" long)
• Penetrating oil

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine mount (right/passenger side) - Qty: 1
• Transmission mount (left/driver side) - Qty: 1
• Front mount (front lower mount) - Qty: 1
• Rear mount (rear lower mount) - Qty: 1
• New mount nuts/bolts (if required) - Qty: As needed

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📋 Before You Begin

• Park on level ground, set the parking brake, and use wheel chocks at the rear wheels.
• Let the engine cool fully; mounts sit near hot exhaust parts.
• If you’ll remove the upper mount(s), plan engine support: an engine support bar holds the engine from above (safer for this job).
• Answer these two questions so I can give the exact OEM-correct steps and torque specs:
• ❓ Which mount(s) are you replacing: right (passenger), left (driver/trans), front lower, rear lower, or all four?
• ❓ Do you have an engine support bar (specialty), or only a floor jack + wood block?

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Identify the mount plan (required)

• Reply with which mount(s) you’re doing and what you’ll use to support the engine.
• Once I have that, I’ll give the exact access steps (covers/air box/subframe shields), the correct support point, and the torque specs for your MDX.

Step 2: Do not unbolt mounts yet

• Until the engine is properly supported, do not loosen any mount-to-body or mount-to-bracket hardware.
• Mount jobs go safest with a support bar.

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✅ After Repair

• After installation, you’ll verify engine height/alignment, check for vibration on idle, and do a short road test for clunks on accel/brake.
• If any mount bolts were loosened with the engine “twisted,” you may need to re-center and re-torque to prevent pre-loading the mounts.

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💰 DIY vs Shop Cost

Shop Cost: $600-$1,800 (parts + labor)

DIY Cost: $150-$700 (parts only)

You Save: $450-$1,100 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-6 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.