The engine frame is mounted to the body by means of thick rubber insulators. These insulators are specifically designed for each location to give the proper amount of structure strength while, at the same time, providing maximum road noise isolation. The engine frame insulators consist of an upper spacer, upper insulator, lower insulator, lower retainer and a through bolt. The insulator is protected by a plastic cover that is fastened to the engine frame. Improper frame insulator installations may result in the following problems:

The above problems can sometimes be caused by the wrong part being installed or the insulator not being properly tightened. Squeaks may be caused by an improperly located insulator rubbing on the frame rail. If a problem has been diagnosed as an insulator problem, check to ensure the proper insulator was installed and check body bolt torque.