GM Service Manual Online
For 1990-2009 cars only

    Object Number: 561724  Size: SH

    Notice: Broken engine mountings can cause misalignment of certain drive-train components. Misalignment of drive-train components causes eventual destruction of the drive-train components.

    If one engine mount breaks, the rest of the engine mounts will have increased stress put on them. This could cause the rest of the engine mounts to break.

    Notice: When raising or supporting the engine for any reason, do not use a jack under the oil pan, any sheet metal, or the crankshaft pulley. Lifting the engine in an unapproved manner may cause component damage.

  1. Raise the engine in order to remove the weight from the mount and to place a slight tension on the rubber cushion. Observe both mount while raising the engine.
  2. Replace the mount if any of the following conditions exist:
  3. • Hard rubber surface covered with heat check cracks
    • The rubber cushion separated from the metal plate of the mount
    • The rubber cushion is split through the center
  4. If there is movement between a metal plate of the mount and its attaching points, lower the engine and tighten the bolts or nuts attaching the mount to the engine, the frame or the bracket. Refer to Fastener Tightening Specifications .