This procedure covers the removal and replacement of the rear engine mount on a 2018-2024 Honda Accord with the 1.5L turbo engine.

Warnings

Tools required

Parts

• Rear engine mount assembly × 1 — Use OEM specification

Preparation

1. Park the vehicle on a level surface and engage the parking brake
2. Disconnect the negative battery terminal and wait 3 minutes for SRS system discharge
3. Raise the front of the vehicle and secure it on jack stands at the proper lift points
4. Remove the engine undercover if equipped (plastic shield under engine bay)
5. Install an engine support fixture across the engine bay or position a transmission jack with a wood block under the oil pan

Procedure

1. 1

   Support the engine
   Using an engine support fixture or transmission jack with a wood block, apply gentle upward pressure to support the engine weight. Do not lift the engine, only support it to prevent dropping when the mount is removed. The engine should remain in its normal position.
2. 2

   Access the rear engine mount
   From underneath the vehicle, locate the rear engine mount between the engine and the subframe. It will be positioned toward the rear of the engine block near the transmission bell housing area. Clean any debris around the mounting bolts.
3. 3

   Remove the mount through bolt
   Using a 17mm socket and ratchet, remove the mount through bolt that passes horizontally through the center of the mount assembly. This bolt connects the upper and lower portions of the mount. Support the bolt as it may be heavy.
   Torque spec

   Mount Through Bolt84 Nm (62 lb-ft)
4. 4

   Remove upper mount-to-engine bolts
   Remove the bolts securing the upper portion of the mount to the engine block using a 14mm socket. There are typically 2-3 bolts in this location. The engine support will prevent the engine from dropping.
   Torque spec

   Engine Mount-to-Block Bolts65 Nm (48 lb-ft)
5. 5

   Remove lower mount-to-subframe bolts
   Remove the bolts securing the lower mount bracket to the subframe using a 14mm or 17mm socket depending on bolt head size. These may be tight and require a breaker bar. Support the mount as you remove the final bolt.
   Torque spec

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

   Remove the rear engine mount
   Carefully maneuver the rear mount assembly out from between the engine and subframe. You may need to slightly adjust engine support height or angle to create clearance. Inspect the removed mount for cracking, separation, or oil contamination.
7. 7

   Prepare the new mount
   Unpack the new rear engine mount and verify it matches the removed part. Check that all bolt holes align and the mount orientation matches the original. Clean the mounting surfaces on both the engine block and subframe with a wire brush.
8. 8

   Install the new mount to subframe
   Position the new mount assembly and align the lower bracket with the subframe mounting holes. Install the mount-to-subframe bolts hand-tight. Do not fully torque yet to allow for alignment adjustment.
9. 9

   Install upper mount to engine block
   Align the upper portion of the mount with the engine block mounting holes. You may need to adjust the engine support slightly to align holes. Install the engine mount-to-block bolts hand-tight.
10. 10

    Install the mount through bolt
    Insert the mount through bolt through the center of the mount assembly to connect the upper and lower portions. Thread the bolt hand-tight but do not torque yet.
11. 11

    Torque all mount fasteners
    Torque the mount through bolt first to 84 Nm (62 lb-ft). Then torque the engine mount-to-block bolts to 65 Nm (48 lb-ft). Finally, torque the mount-to-subframe bolts to 75 Nm (55 lb-ft). Follow this sequence to ensure proper mount alignment.
    Torque spec

    Mount Through Bolt84 Nm (62 lb-ft)

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

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

    Remove engine support
    Carefully remove the engine support fixture or lower the transmission jack. The engine weight should now rest on the new mount. Verify the engine settles into position without unusual movement or noise.

Reassembly

1. Reinstall the engine undercover if removed, torque mounting bolts to specifications
2. Lower the vehicle from jack stands
3. Reconnect the negative battery terminal
4. Reset the power window auto-up/down function if necessary by fully opening and closing each window

Verification

• Start the engine and verify it idles smoothly without excessive vibration or movement
• With the engine running, shift through all transmission gears (Park, Reverse, Neutral, Drive) and observe for abnormal engine movement
• Perform a test drive and verify no excessive vibration during acceleration or deceleration
• Visually inspect the mount installation for proper alignment and verify all bolts remain tight
• Listen for any clunking sounds during takeoff or braking which would indicate a loose or failed mount

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