🔧 Yukon - Engine Mount Replacement

Engine mounts support your Yukon’s engine and isolate vibration. Replacing them requires safely supporting the engine, unbolting the mount(s), then installing and torquing the fasteners correctly.

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

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⚠️ Safety & Precautions

• ⚠️ Never get under the engine unless it’s supported by jack stands; a jack alone can fail.
• ⚠️ Support the engine with a floor jack + wood block before loosening any mount bolts to prevent sudden engine drop.
• ⚠️ Keep hands clear of pinch points between engine, frame, and mount brackets while raising/lowering.
• ⚠️ Let the exhaust cool completely; burns are common near the mounts.
• ⚠️ Battery disconnect is recommended if you’ll be working near the starter/positive cable area.

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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
• Wood block (2x6 or similar)
• Socket set 10mm-24mm
• Wrench set 10mm-24mm
• Breaker bar 1/2-inch drive
• Torque wrench 1/2-inch drive (20-200 ft-lbs range)
• Torque wrench 3/8-inch drive (10-80 ft-lbs range)
• Extension set 3/8-inch and 1/2-inch drive
• Universal joint adapter 3/8-inch drive
• Trim clip remover
• Flathead screwdriver
• Penetrating oil
• Paint marker
• Work light

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Left engine mount - Qty: 1
• Right engine mount - Qty: 1
• Engine mount fastener kit - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and chock the rear wheels.
• Raise the front and support the frame securely with jack stands.
• Lightly support the engine oil pan area with a floor jack and wood block (the wood spreads the load so you don’t dent the pan).
• Quick check: Look at your new mounts/bolts packaging—some GM mount bolts are “single-use” (torque-to-yield) and must be replaced.
• Answer these two questions so I can give the exact mount access path and the correct torque specs:
• ❓ Are you replacing both mounts or just left or right?
• ❓ Did your replacement mounts come with new bolts (yes/no)?

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm the mount(s) and bolt type

• I need your answers to the two questions above to provide the correct side-specific access steps and the correct Torque to XX Nm (YY ft-lbs) specs for your Yukon.
• Once you reply, I’ll give you the full numbered procedure (including what to remove for access on the 4WD layout) and all torque values.

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✅ After Repair

• Verify the engine sits centered and nothing is contacting the fan shroud, exhaust, or frame.
• Start the engine and check for abnormal vibration, clunks on throttle tip-in, and any new rattles.
• Road-test: slow acceleration/braking in a safe area and re-check for movement or noises.

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💰 DIY vs Shop Cost

Shop Cost: $700-$1,600 (parts + labor)

DIY Cost: $150-$500 (parts only)

You Save: $550-$1,100 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.