GM 15854396
Mounting Bracket

The first step to replace the Engine Mount requires air cleaner assembly removal. The engine needs support through a hydraulic floor jack that should have a wooden block placed between the jack and the Oil Pan. Begin by taking out the Engine Mount from the engine compartment after removing the Engine Mount to bracket bolts and the Engine Mount to side rail nuts. Mount the engine bracket onto the side rail studs before you can install it with side rail nuts following the specific torque sequence to 100 nm (74 ft. Lbs.). Perform the installation process of the Engine Mount to bracket bolts by using a wrench but not applying any uncalled-for pressure to the Engine Mount for hole alignment. Install and torque these bolts to a value of 50 nm (37 ft. Lbs.) while following the specified bolt order. You must finish by taking away the floor jack then reinstall the air cleaner assembly.

The first step to replace an Engine Mount Bracket involves Engine Mount removal before proceeding. You need to start by removing both Engine Mount Bracket to engine bolts then you can pull out the Engine Mount Bracket. Position the Engine Mount Bracket on the engine before installing the bolts where you must use long bolts in forward and lower front holes and a short bolt in the upper rear hole. Adhere to the fastener warning from the manufacturer to stop vehicle damage. Tighten the Engine Mount Bracket bolts starting with 100 nm (74 lb ft) torque while following the specified sequence then reattach the Engine Mount.

First you must lift the vehicle then put it on support before performing the balancing operation. Next proceed with dropping the vehicle after you have loosened the front transaxle mount through bolt and rear transaxle mount through bolt. Two floor jacks equipped with wood blocks should be placed under the engine and transaxle to maintain powertrain assembly suspension. You should start by creating a 1/8 inch gap between the mount and bracket using both floor jacks that are repositioned correctly. After that, tighten the transaxle mount to transaxle bolts and the engine mount to bracket bolts. The transaxle mount should be installed to transaxle bolts which require tightening to 45 n.m (33 lb ft) then proceed with engine mount bolt installation followed by a 50 n.m (37 lb ft) torque setting. Shake the powertrain whole unit from front to rear through vigorous motion then allow the assembly to settle before removing the jacks situated below the Oil Pan. The technician should lift the vehicle again before securing the rear transaxle mount through bolt to 100 n.m (74 lb ft) and finishing with the front transaxle mount through bolt at 100 n.m (74 lb ft) before putting the vehicle down.

The air cleaner assembly and windshield washer solvent reservoir need to be removed before starting the Engine Mount replacement. A hydraulic floor jack with wood should support the engine at the Oil Pan while you remove the mount. Unfasten the Engine Mount brackets from the bolts while also removing the nuts from the side rail studs until you can successfully pull out the Engine Mount from the compartment. Mount the engine component to steel rail studs while installing the side rail nuts before torquing them to 100 n.m (74 lb ft). The Engine Mount to bracket bolts require hand-tightening without using the Engine Mount to shift its position into hole alignment. Tighten Engine Mount to bracket bolts starting from the middle and proceeding to the rear and front with a torque of 50 n.m (37 lb ft). The installation process continues with hydraulic floor jack removal from under the Oil Pan followed by proper reinstallation of the windshield washer solvent reservoir along with the air cleaner assembly.

The first step involves taking out the Engine Mount before proceeding with bracket replacement. Begin by removing the Engine Mount Bracket engine bolts before taking out the Engine Mount Bracket from the engine bay. Place the Engine Mount Bracket against the engine structure then bolt in place with the long bolts threaded through forward and lower rear holes alongside the short bolt inserted into the upper rear hole. Following the provided fastener caution rules will help avoid vehicle damage. You should install and tighten Engine Mount Bracket bolts starting with the upper rear position and moving next to the lower rear before settling on the forward position at 50 nm (37 lb ft). Finally, install the Engine Mount.

To remove the Engine Mount Bracket, begin by removing the Engine Mount. Next, remove the Engine Mount Bracket (to engine bolts) to then remove the Engine Mount Bracket itself. For installation, place the Engine Mount Bracket to the engine and insert the Engine Mount Bracket bolts and use long bolts in the forward and lower rear holes and use short bolts in the upper rear hole. Make sure to adhere to the fastener caution to prevent vehicle damage. Lastly, tighten the Engine Mount Bracket bolts in the described pattern to 100 nm (74 lb ft) and reinstall the Engine Mount.

To change the left transmission mount, first, remove battery tray and underhood electrical center. Lift and support the vehicle while supporting the engine and the transmission. Disassemble front transmission mount to frame bolt and the rear transmission mount to rear transmission mount bracket bolt. Lower the vehicle before taking off and removing the left transmission mount to transmission bolts and the left transmission mount to frame rail bolts. Lower the transmission as much as possible to give clearance for left transmission mount and remove the left transmission mount. For installation, start off by installing the left transmission mount and make sure that the left transmission mount is installed to frame rail bolts and tighten to 27 nm (20 lb ft). Raise the transmission until the left transmission mount meeting the left transmission mount, then install front transmission mount to transmission bolts and tighten 50 nm (37 lb ft). Lift the vehicle once more and install rear transmission mount to rear transmission mount bracket bolt and tighten 110 nm (81 lb ft), followed by front transmission mount to frame bolt tightened at 110 nm (81 lb ft). Lower the vehicle, take off the engine and the transmission support and finally the battery tray and the under hood center.

Remove the front transaxle mount thru bolt and the bolts connecting the front transaxle mount to the transaxle.

Remove the air cleaner assembly and the windshield washer solvent reservoir.

Take out the intermediate bracket from the engine.

Install the transmission mount to the mid-rail, ensuring to tighten the mid-rail bolts to 27 Nm (20 lb ft).

Hand tighten the engine mount intermediate bracket bolts in the long bolts' forward and front lower holes and the short bolt in the rear upper hole.

Hand tighten the engine mount to body nuts and install the engine mount to bracket bolts, ensuring to follow the Fastener Notice in Service Precautions.

Tighten the rear transaxle mount to frame bolts to 60 N.m (44 lb ft).

Remove the underhood electrical center bracket and reposition the electrical center.

Position the engine mount to the vehicle and align it to the mount bracket using a dowel.

Hand start the bolts in the sequence: rear bolt, middle bolt, front bolt.

Shake the powertrain vigorously from front to rear and allow it to settle.

Remove the engine mount to bracket bolts and the engine mount to side rail nuts.

Position the engine mount bracket to the engine.

Lower the vehicle.

Install the engine mount.

Connect the engine control module harness connectors, reconnect the negative battery cable, and install the underhood electrical center cover.

Place the engine mount onto the side rail studs, ensuring to install the engine mount to side rail nuts and tighten them to 100 Nm (74 lb ft).

Raise and support the vehicle.

Remove the rear transaxle mount through bolt and heat shield, followed by the rear transaxle mount to frame bolts, and then take out the rear transaxle mount.

Hand start the bolts without prying to align the holes, then tighten these bolts to 65 Nm (48 lb ft).

Tighten the rear transmission mount thru bolt to 100 N.m (74 lb ft).

The engine mount to bracket bolts must be hand started without prying the engine mount to align the holes, then tighten these bolts to 50 Nm (37 ft. lbs.).

Install the engine mount.

Take out the engine mount bracket to engine bolts and then remove the engine mount bracket.

Install the transaxle mount to transaxle bolts and tighten them to 45 Nm (33 lb ft), followed by tightening the engine mount bolts to 50 Nm (37 lb ft).