GM 24504187
Support

The first task for replacing the engine mount and bracket is disconnecting the throttle body air inlet duct. First raise the car until suitable and use support tools to lift it. After wheel and tire removal proceed with taking off the right engine splash guard. Lower the vehicle by removing its engine mount lower nuts. The universal engine support fixture (J 28467-B) should be used for elevating the engine before you properly support the entire vehicle. The procedure includes removing engine mount bracket-to-oil pan bolts as the first step along with elimination of engine mount and its bracket. The engine mount requires eliminating its upper nuts before separating it from the engine mount bracket. When installing the mount position it on the engine mount bracket while tightening engine mount upper nuts to 47 nm (35 ft. Lbs.). Safely install the engine mount bracket together with its mount to the Oil Pan while tightening the engine mount bracket-to-oil pan bolts to 58 nm (43 ft. Lbs.). Lower the engine with the vehicle before you lift the vehicle for appropriate support of its surface. Then continue to support the vehicle at the desired height. Fasten the engine mount lower nuts to 43 nm (32 ft. Lbs.). The last step involves reinstalling the right engine splash shield as well as the right front wheel and tire but before lowering the vehicle you must remove the universal engine support fixture (J 28467-B). Connect the throttle body air inlet duct with care at the end of the installation.

The replacement of the Engine Mount Bracket starts with the removal of hood panel and electric engine cooling fan. The installation procedure begins by adding engine support fixture (J 28467-360) combined with engine support fixture adapters (J 8467-90) while using engine support adapter leg (J 36462) along with engine support foot modification (J 35953). It is necessary to carefully lift the vehicle while using proper support before unfastening both the right front tire and wheel assembly and the generator and mounting bracket. The engine maintenance requires unfastening the engine mount nuts from the Engine Mount Bracket followed by once more lifting the vehicle to unfasten the transaxle bracket securing bolts and Engine Mount Bracket nuts which are located at the engine. From there, install the rear Engine Mount Bracket by using the bracket to engine retaining bolts before tightening the side of the block engine retaining bolts to 58 nm (43 ft. Lbs.) and the front of the block engine retaining bolts to 102 nm (75 ft. Lbs.). The rear Engine Mount Bracket requires installation of transaxle retaining bolts which need tightening to 75 nm (55 ft. Lbs.). Lower the vehicle while removing the engine support fixture (J 28467-360) and its adapters (J 8467-90), adapter leg (J 36462) and foot modification (J 35953). The engine needs to be lowered before a subsequent vehicle lift to enable rear Engine Mount Bracket nut installation. The installation process requires reapplied generators and right front tire assembly with wheel along with electric engine cooling fan replacement before setting the hood panel.

Install the engine mount to engine mount bracket bolts and tighten them to 130 Nm (96 ft. lbs.).

Raise the engine to remove weight from the engine mount and create slight tension in the rubber.

Lower the engine on the engine mount and tighten the bolts or nuts attaching the engine mount to the frame or bracket.