Mopar 4578053AC Bracket-Engine Mount

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There are three powertrain mounts; the left and right ones attach to the engine block, subframe and the engine block while a rear one is attached to the transmission and the frame. During testing, the mounts must have no weight on them so that the engine should be slightly lifted. Raise vehicle and secure it with jack stands then place a jack under engine oil pan. Place a huge wood block between jack head and oil pan, then lift up carefully just enough to remove weight from mount. Look for cracked or hardened rubber or separation of rubber from metal center in mount insulators. Check for movement between mount and engine or subframe. Make use of large screwdriver or prybar to see if those mounts can move. Lower engine if movement is detected, then tighten mount fasteners.Disconnect cable from negative terminal of battery for replacement.Raise vehicle and support it securely on jackstands (if not already done).Position a jack under the engine oil pan.Place a large wood block between the jack head and the oil pan.If you're taking out right side mount (which includes alternator support bracket), disconnect alternator support bracket.Remove nuts securing subframe to engine mount and raise engine by using this jack.Remove bolts holding mounting bracket to motor.Align new mount correctly in bracket before installing.Securely tighten fasteners after they've been installed.

During the mount inspection, check the mount insulators for any signs of rubber being cracked, hardened, or separated from the metal in the center of the mount. Also, check for relative movement between the mount and the engine or subframe.

The first step is to disconnect the cable from the negative terminal of the battery, then raise the vehicle and support it securely on jackstands.

Remove the engine mount heat shield.

Raising the engine slightly during the check is done to remove the weight from the mounts, allowing for a proper inspection.

During the check, the engine must be raised slightly to remove the weight from the mounts.

If movement is noted, lower the engine and tighten the mount fasteners. Rubber preservative should be applied to the mounts to slow down deterioration.

Check the mounts to see if the rubber is cracked, hardened, or separated from the metal plates. Look for any signs of damage, such as splits in the rubber. Check for relative movement between the mount plates and the engine or subframe using a large screwdriver or pry bar to attempt to move the mounts.