engine

Engine Mount - Front

for 2021 Hyundai Tucson 2.5L I4 · AWD

Difficulty

Moderate

Time

1.5 h

Tools

Steps

This procedure covers the removal and replacement of the front engine mount on a 2016-2024 Hyundai Tucson with the 2.5L I4 AWD engine.

Warnings

⚠️Never work under a vehicle supported only by a jack. Always use jack stands rated for the vehicle weight.

⚠️The engine must be properly supported before removing mount bolts. Failure to support the engine can result in catastrophic engine movement, damage to components, or serious injury.

⚠Allow engine to cool completely before beginning work. Engine and exhaust components may cause severe burns.

⚠Critical torque specifications must be followed exactly to prevent engine mount failure or excessive vibration.

Tools required

Engine support bar or jack with wood blockEssential

Floor jackEssential

Jack standsEssential

Torque wrench (10-100 Nm range)Essential

Socket set (10mm-19mm)

Ratchet and extensions

Wrench set (10mm-19mm)

Pry bar

Shop light

Parts

Front engine mount assembly × 1 — Use OEM specification

Preparation

Park vehicle on level surface and engage parking brake
Allow engine to cool completely
Disconnect negative battery terminal
Raise vehicle and support securely on jack stands at manufacturer-specified lift points
Remove front engine under cover if equipped

Procedure

1
Support the engine
Position an engine support bar across the engine bay or place a floor jack with a wood block under the oil pan to support engine weight. Apply just enough pressure to take the load off the mount without lifting the engine. Ensure support is stable and secure before proceeding.
2
Access the front engine mount
From underneath the vehicle, locate the front engine mount. It connects the engine block to the front subframe. Remove any plastic shields or protective covers that may obstruct access to the mount bolts.
3
Remove mount-to-frame bolts
Locate and remove the bolts securing the engine mount bracket to the subframe. There are typically 2-3 bolts accessible from below. Support the mount with one hand as you remove the final bolt.
Torque spec
Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
4
Remove mount through-bolt
Locate the large through-bolt that passes horizontally through the engine mount assembly. This bolt typically secures the mount to the engine bracket. Remove the nut and withdraw the through-bolt. The mount may need to be shifted slightly to extract the bolt.
5
Remove mount-to-engine bolts
Remove the bolts that secure the mount bracket to the engine block. These are typically accessed from above or from the side of the engine bay. You may need to work from both above and below the vehicle.
Torque spec
Engine Mount-to-Block Bolts65 Nm (48 lb-ft)
6
Remove the front engine mount
With all fasteners removed, carefully lower and remove the front engine mount assembly from the vehicle. Note the orientation and position of any washers, brackets, or spacers for reassembly. Inspect the removed mount for cracks, tears in the rubber, or oil contamination.
7
Prepare the new mount
Unpack the new front engine mount and compare it to the old unit to confirm correct application. Check that all mounting holes align properly and that the mount orientation matches the original. Clean mounting surfaces on both the engine block and subframe.
8
Install new mount to engine block
Position the new mount assembly to the engine block. Install the mount-to-block bolts finger-tight. Ensure proper alignment before tightening. Torque bolts to specification in a cross pattern.
Torque spec
Engine Mount-to-Block Bolts65 Nm (48 lb-ft)
9
Install mount through-bolt
Insert the through-bolt through the mount assembly, ensuring proper alignment of the mount bracket. Install the nut finger-tight. Do not fully torque at this stage to allow for alignment adjustment.
10
Install mount-to-frame bolts
Align the mount bracket with the subframe mounting points. Install all mount-to-frame bolts finger-tight. Verify proper alignment of the mount before final tightening.
Torque spec
Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
11
Final torque sequence
With all bolts installed finger-tight, torque in this sequence: First, torque the mount-to-frame bolts. Second, torque the mount through-bolt. Finally, recheck the mount-to-block bolts to ensure they remain at specification. This sequence ensures proper load distribution.
Torque spec
Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
Engine Mount-to-Block Bolts65 Nm (48 lb-ft)
12
Remove engine support and reinstall covers
Carefully remove the engine support bar or jack, allowing the engine weight to settle onto the new mount. Reinstall any protective covers or shields removed during disassembly.

Reassembly

Reinstall front engine under cover if equipped
Lower vehicle from jack stands
Reconnect negative battery terminal
Start engine and allow to idle while checking for proper mount operation

Verification

With engine running, check for excessive vibration or unusual engine movement
Perform a visual inspection under the vehicle to confirm all bolts are tight and properly seated
Test drive vehicle and verify normal operation with no unusual vibrations during acceleration or deceleration
Re-inspect all mount bolts after 50-100 miles of driving to ensure they remain tight