GM 15854941
Motor Mount

The first step for left Engine Mount replacement (1500 w/RPO LY2) requires removal of the air cleaner outlet duct. Before continuing the repair it is necessary to remove the front drive axle when your vehicle has four-wheel drive. First lower the vehicle and afterward remove the generator bracket. The next step requires removal of the Engine Mount to frame bolts and a vehicle lift to halfway height. You should remove the left wheelhouse liner while taking care not to support the engine from either the crankshaft balancer or Oil Pan. To extract the Engine Mount to engine bolts install a screw-type adjustable jack under the engine block tab and access the bolts through the wheelhouse opening. The adjustable jack must be used to elevate the engine just enough to take out the Engine Mount. Install the Engine Mount to its position on the motor before placing it through the wheelhouse opening to put the engine bolts in place. Tighten the bolts to 50 nm (37 lb ft). Lift down the engine until the mount touches the frame flat, then take away the jack. Then install the wheelhouse liner before lowering the automobile while you set the Engine Mount frame bolts into place with a torque of 65 nm (48 lb ft). Start by tightening the center bolt first. Reinstall the generator bracket while performing the front drive axle installation when required. The procedure ends by lowering the vehicle to install the air cleaner outlet duct.

The first step to replace the right side Engine Mount (1500 w/RPOs LC9/LMG/LY5/L76/L92) is disassembly of the air cleaner outlet duct. Before starting replacement of the Engine Mount on vehicles with four wheel drive systems customers must detach both front drive axle components with their brackets. The first step involves removing two components: exhaust manifold together with the air conditioning (A/C) compressor bracket. Before removing the Engine Mount to frame bolts you must avoid lifting the engine with the crankshaft balancer or Oil Pan since this is unsafe. Insert an adjustable screw-type jack at the engine block tab before you remove the Engine Mount to engine bolts while entering through the wheelhouse opening. Adjust the jack up slightly to create enough space for getting rid of the Engine Mount. After positioning the Engine Mount towards the engine continue by installing the Engine Mount to engine bolts through the wheelhouse opening and secure these fasteners to 50 n.m (37 lb ft). Lower the engine after the Engine Mount becomes parallel with the frame followed by adjustable jack removal. Begin by tightening the angle of the Engine Mount to frame bolts to 65 n.m (48 lb ft). Start by screwing the middle bolt first then move to the side bolts. Reinstall the a/c compressor bracket while four-wheel drive vehicles require installation of front drive axle bracket and its corresponding bolts. Tighten these elements to 90 n.m (67 lb ft) and after that reinstall the front drive axle. Finally, reinstall the Exhaust Manifold.

The maintenance of the left Engine Mount for 1500 vehicles with rpos lc9/lmg/ly5/l76/l92 requires starting from air cleaner outlet duct removal. Before proceeding with the replacement it is necessary to remove the front drive axle when the vehicle is equipped with four-wheel drive. Lift the vehicle downwards before taking out the generator bracket. Proceed by disassembling the Engine Mount to frame bolts before performing a halfway raise on the vehicle. Take out the left wheelhouse liner while avoiding the use of crankshaft balancer or Oil Pan to support the engine. Put a screw-type adjustable jack under the engine block tab, use the wheelhouse opening to uninstall the Engine Mount to engine bolts. The adjustable jack is necessary to lift the engine a short distance for access to detach the Engine Mount. Install the new Engine Mount to its position on the engine so you can apply Engine Mount to engine bolts while tightening them to 50 n.m (37 lb ft). Once the mount touches the frame naturally lower the engine and take out the jack. Begin by replacing the left wheelhouse liner then lower the car and finally install the Engine Mount with 65 n.m (48 lb ft) torque when using the middle bolt first. It is essential to reinstall the generator bracket and the front drive axle if applicable before lowering the vehicle to put in the air cleaner outlet duct.

One needs to remove the air cleaner outlet duct before starting the right side Engine Mount replacement process. The removal sequence begins with displacement of both front drive axle components and bracket from a vehicle with 4wd systems. The next step requires Exhaust Manifold removal and air conditioning (A/C) compressor bracket removal. The removal process starts by discarding all Engine Mount to frame bolts while keeping the motor engine free from ratifying support by crankshaft balancer or Oil Pan. A screw-type adjustable jack positioned under the blocking tab of the engine block allows workers to remove Engine Mount to engine bolts by accessing the wheelhouse opening. The adjustable jack should lift the engine a slight amount for sufficient space to take away the Engine Mount. Position the Engine Mount to the engine and install the Engine Mount to engine bolts through the wheelhouse opening while tightening them to 50 nm (37 lb ft). Drop the engine until it pushes the Engine Mount entirely into position against the frame before removing the supporting jack. Begin by installing the Engine Mount to its frame bolts where torques of 65 nm (48 lb ft) will be applied starting with the middle bolt followed by tightening either side bolt. Install the a/c compressor bracket followed by front drive axle bracket installation and tightening bolts to 90 nm (67 lb ft). After that, tighten the front drive axle bolts. Finally, reinstall the Exhaust Manifold.

The first step to replace the left Engine Mount of a 2wd vehicle involves removing the air cleaner outlet duct. The first step is to lower the vehicle before you access the Engine Mount to frame bolts . Lift the vehicle to reach halfway in the air. During the left wheelhouse liner removal proceed with caution because the engine must not rest on crankshaft balancer or Oil Pan. Position a screw type adjustable jack underneath the tab that extends from the engine block. The wheelhouse opening provides access for removing Engine Mount to engine bolts while an adjustable jack helps elevate the engine marginally for removing the Engine Mount. Position the Engine Mount to the engine before locking the Engine Mount to engine bolts through the wheelhouse opening and tightening them to 50 nm (37 lb ft). After adjusting the engine height you should remove the adjustable jack when the Engine Mount rests completely against the frame. Place the left wheelhouse liner before lowering the vehicle while you install the Engine Mount frame bolts using 65 nm as the tightening torque with the center bolt first and both side bolts afterward. Lower down the vehicle before placing back the air cleaner outlet duct.

Place an adjustable (screw type) jack under the tab on the engine block.

Lower the vehicle and then remove the generator bracket.

Reinstall the A/C compressor bracket.

Install the engine mount and its bolts, tightening to 50 N.m (37 lb ft), then lower the engine.

Tighten them to 65 N.m (48 lb ft), starting with the middle bolt and then either side bolt.

Use an adjustable (screw type) jack on the tab located on the engine block.

Raise and suitably support the vehicle.

First, attach the engine mount side bracket to the engine, ensuring to remove all traces of the original adhesive patch and clean the threads of the bolts with denatured alcohol or equivalent, allowing them to dry.

Clean the bolt threads with denatured alcohol or equivalent.

Use a suitable transmission jack to raise the transmission just enough to allow for the removal of the mount.

Install the bolts while working through the wheelhouse opening and tighten them to 50 Nm (37 lb ft).

Remove the transmission mount to the transmission or transfer case adapter mounting bolts.

Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or an equivalent to the bolts.

Install and tighten them to 50 Nm (37 lb ft).

Install the oil pan skid plate and bolts, tightening them to 20 N.m (15 lb ft).

Ensure the mount is flush on the frame and remove the jack.

Use a suitable transmission jack to raise the transmission just enough to allow for the removal of the mount.

Install the oil pan skid plate and bolts, tightening them to 20 N.m (15 lb ft).

Position the engine mount to the engine.

Begin by removing the engine mount to engine mount bracket bolts.