Complete replacement of all engine mounts (front, rear, left, right, and transmission mount) on the 2016-2024 Hyundai Tucson 2.5L I4 AWD to eliminate vibration and restore proper engine positioning.

Warnings

Tools required

Parts

• Front engine mount × 1 — Use OEM specification
• Rear engine mount (roll stopper) × 1 — Use OEM specification
• Left engine mount × 1 — Use OEM specification
• Right engine mount × 1 — Use OEM specification
• Transmission mount × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Allow engine to cool completely (minimum 2 hours)
3. Disconnect negative battery terminal and secure away from post
4. Raise vehicle with floor jack and support securely on four jack stands at manufacturer-designated lift points
5. Remove engine splash shield and any lower protective covers using 10mm socket
6. Install engine support bar across engine bay or position transmission jack under oil pan with wood block for protection
7. Apply penetrating oil to all mount fasteners and allow 15 minutes to soak

Procedure

1. 1

   Support engine weight
   Using engine support bar positioned across strut towers, attach lifting chains to designated engine lift points. Raise engine support bar until engine weight is just barely lifted off mounts (approximately 5-10mm clearance). Verify engine is stable and balanced before proceeding.
   ⚠️Engine must remain stable throughout procedure. Verify support system is secure before removing any mount bolts.
2. 2

   Remove right engine mount
   From engine bay, locate right engine mount on passenger side between engine block and frame rail. Remove upper mount-to-engine block bolts (typically 3 bolts) using 14mm socket. From underneath vehicle, remove lower mount-to-frame bolts using 17mm socket. Carefully extract mount from mounting position.
   Torque spec

   Engine Mount-to-Block Bolts65 Nm (48 lb-ft)

   Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
3. 3

   Remove front engine mount
   Access front mount from underneath vehicle, located at front of engine facing radiator. Remove mount through-bolt using 17mm socket and breaker bar if needed. Remove mount-to-frame bolts and mount-to-engine bracket bolts. Note orientation of mount before removal. Extract mount assembly.
   Torque spec

   Through-Bolt85 Nm (63 lb-ft)

   Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
4. 4

   Remove rear engine mount (roll stopper)
   Locate rear mount assembly between engine and firewall, accessible from above. Remove mounting bolts securing mount to engine block using 14mm socket. Remove through-bolt or mounting bolts connecting mount to subframe bracket. Carefully remove mount while noting orientation and any alignment dowels.
   Torque spec

   Mounting Bolts47 Nm (35 lb-ft)

   Mount Through Bolt88 Nm (65 lb-ft)
5. 5

   Remove left engine mount
   Access left mount from driver side wheel well area. Remove mount-to-engine bracket bolts using 14mm socket. Remove lower mount-to-frame attachment bolts using 17mm socket. If equipped with through-bolt configuration, remove through-bolt. Extract mount assembly from vehicle.
   Torque spec

   Engine Mount-to-Block Bolts65 Nm (48 lb-ft)

   Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
6. 6

   Remove transmission mount
   Locate transmission mount underneath vehicle at rear of transmission. Using transmission jack or floor jack, slightly support transmission weight. Remove transmission mount bolts securing mount to transmission using 14mm socket. Remove mount-to-crossmember bolts using 17mm socket. Lower jack slightly and extract mount.
   Torque spec

   Transmission Mount Bolts65 Nm (48 lb-ft)
7. 7

   Clean and inspect mounting surfaces
   Use wire brush to clean all mounting surfaces on engine block, transmission, and frame rails. Remove rust, debris, and old thread-locking compound. Inspect mounting brackets for cracks, elongated holes, or damage. Check alignment dowels are present and undamaged. Verify threaded holes are clean and not stripped.
8. 8

   Install new transmission mount
   Position new transmission mount onto crossmember. Support transmission with jack and align mount to transmission mounting holes. Install transmission mount bolts hand-tight. Install mount-to-crossmember bolts hand-tight. Verify proper alignment before final torquing.
   Torque spec

   Transmission Mount Bolts65 Nm (48 lb-ft)
9. 9

   Install new left engine mount
   Position new left engine mount between engine bracket and frame rail, ensuring proper orientation matches original. Install mount-to-frame bolts hand-tight. Install mount-to-engine bracket bolts hand-tight. If through-bolt equipped, install through-bolt hand-tight. Verify mount alignment before torquing.
   Torque spec

   Engine Mount-to-Block Bolts65 Nm (48 lb-ft)

   Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
10. 10

    Install new rear engine mount
    Position new rear mount (roll stopper) between engine and firewall/subframe bracket, matching original orientation. Align any dowel pins. Install mounting bolts to engine block hand-tight. Install through-bolt or mounting bolts to frame bracket hand-tight. Verify proper seating of mount before torquing.
    Torque spec

    Mounting Bolts47 Nm (35 lb-ft)

    Mount Through Bolt88 Nm (65 lb-ft)
11. 11

    Install new front engine mount
    Position new front mount in mounting location with proper orientation. Install mount-to-frame bolts hand-tight. Install mount-to-engine bracket bolts hand-tight. Install mount through-bolt hand-tight. Ensure mount rubber isolator is not twisted or misaligned.
    Torque spec

    Through-Bolt85 Nm (63 lb-ft)

    Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
12. 12

    Install new right engine mount
    Position new right engine mount between engine block and frame rail. Install lower mount-to-frame bolts hand-tight from underneath. Install upper mount-to-engine block bolts hand-tight from engine bay. Verify mount is properly seated on all mounting surfaces.
    Torque spec

    Engine Mount-to-Block Bolts65 Nm (48 lb-ft)

    Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)
13. 13

    Torque all mounts to specification
    Using calibrated torque wrench, torque all mount fasteners in the following order: 1) Right mount engine-to-block bolts to 65 Nm (48 lb-ft), frame bolts to 75 Nm (55 lb-ft). 2) Front mount through-bolt to 85 Nm (63 lb-ft), frame bolts to 61 Nm (45 lb-ft). 3) Rear mount mounting bolts to 47 Nm (35 lb-ft), through-bolt to 88 Nm (65 lb-ft). 4) Left mount engine-to-block bolts to 65 Nm (48 lb-ft), frame bolts to 75 Nm (55 lb-ft). 5) Transmission mount bolts to 65 Nm (48 lb-ft).
    ⚠Use torque wrench for all critical mount fasteners. Over-torquing can damage mounts; under-torquing can allow engine movement.
    Torque spec

    Engine Mount-to-Block Bolts65 Nm (48 lb-ft)

    Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)

    Through-Bolt85 Nm (63 lb-ft)

    Mounting Bolts47 Nm (35 lb-ft)

    Mount Through Bolt88 Nm (65 lb-ft)

    Transmission Mount Bolts65 Nm (48 lb-ft)
14. 14

    Release engine support and verify alignment
    Slowly and carefully lower engine support bar or transmission jack, allowing engine weight to settle onto new mounts. Remove engine support equipment. Visually verify engine sits level and centered in engine bay. Check for adequate clearance around all engine bay components.
15. 15

    Reinstall covers and reconnect battery
    Reinstall engine splash shield and any protective covers, torquing cover bolts to 16 Nm (12 lb-ft). Lower vehicle from jack stands. Reconnect negative battery terminal. Reset any engine position-related sensors or learning values if equipped.
    Torque spec

    Cover Bolts16 Nm (12 lb-ft)

Reassembly

1. Ensure all mount fasteners are torqued to specification in the correct sequence
2. Verify engine sits level and centered with adequate clearance to all components
3. Confirm no tools or parts remain in engine bay before closing hood
4. All protective covers and shields must be reinstalled

Verification

• Start engine and allow to idle; verify no unusual vibrations or movement
• With engine running, apply light load by turning steering wheel lock-to-lock; engine should not contact frame or body
• Rev engine to 2500 RPM and release throttle; engine should settle smoothly without excessive rocking
• Test drive vehicle at various speeds and verify vibration is eliminated, especially at idle and during acceleration
• Visually inspect all mounts after test drive for proper seating and no signs of movement or damage
• Verify no contact marks on frame rails, firewall, or hood from engine movement

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