Engine Vibration/Noise at Idle, Rough Idle, Steering Wheel Shake (Adjust Engine Mount Bracket(s))

Some customers may comment on unusual engine vibration or noise while at idle. This vibration can also be felt in the steering wheel.

The cause of this condition may be due to contact between the two halves of the engine mount resulting in a ground out when the vehicle is placed in gear. This occurs when the outboard gap is 1.5 mm (0.059 in) or less. Depending on the severity of the contact, this may also occur when the vehicle is in Park or Neutral.

Inspect and adjust the engine mount bracket(s) using the procedure listed below.

1. Raise and support the vehicle.



2. Inspect the engine mount(s) for close (1.5 mm (0.059 in) or less) or contact condition at outboard gap (1).

If the vibration is in Drive, check the left mount. If the vibration is in Reverse, check the right mount. If the vibration is in Park or Neutral, check both mounts.

3. Lower the vehicle.



4. Loosen the three engine mount to bracket bolts (1).
5. Raise the vehicle.



6. Loosen the two bracket to frame bolts (1).
7. Lift up the engine with an adjustable jack stand to relieve the load on the mount/bracket.
8. Rotate the bracket as far outboard as possible.
9. Lower the engine and remove the jack stand.
10. Re-tighten the two bracket to frame bolts.
11. Lower the vehicle.
12. Re-tighten the three engine mount to bracket bolts.
13. Repeat the above steps for the other mount, if necessary.

For vehicles repaired under warranty, use:

*This is a unique labor operation number for use only with this bulletin. This number will not be published in the Labor Time Guide.