GM Service Manual Online
For 1990-2009 cars only

    Important: Before replacing any engine mount due to suspected fluid loss, verify that the source of the fluid is the engine mount, not the engine or accessories.

  1. Raise the engine in order to remove the weight from the engine mount and create slight tension in the rubber.
  2. Observe the engine mount while raising the engine. Replace the engine mount if the engine mount exhibits any of the following conditions:
  3. • The hard rubber surface is covered with heat check cracks.
    • The rubber is separated from the metal plate of the engine mount.
    • The rubber is split through the center of the engine mount.
  4. If there is movement between the metal plate of the engine mount and its attaching points, lower the engine on the engine mount. Tighten the bolts or nuts attaching the engine mount to the frame or engine mount bracket.