Engine Mount Inspection

NOTE: Broken or deteriorated mounts can cause misalignment and destruction of certain drive train components. When a single mount breaks, the remaining mounts are subjected to abnormally high stresses.

Raise the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
Inspect for loose or missing bolts at the following locations:
- The engine mount bracket to the engine
- The engine mount to the engine bracket through-bolts
- The engine mount to frame bracket bolts
Fig 1: Inspecting Engine Mount Bracket And Bolts
Courtesy of GENERAL MOTORS CORP.
Replace loose or missing bolts.
NOTE: When raising or supporting the engine for any reason, do not use a jack under the oil pan, any sheet metal, or the crankshaft pulley. Lifting the engine in an unapproved manner may cause component damage.
In order to access the square tab on the left side of the engine remove the oil filter adapter. Refer to OIL FILTER ADAPTER REPLACEMENT .
In order to access the square tab on the right side of the engine remove the starter. Refer to STARTER MOTOR REPLACEMENT in Battery.
Using a jack on the square tab at the rear of the engine block (left side shown) raise the engine in order to complete the following tasks:
- Remove weight from the engine mount.
- Place a slight tension on the rubber cushion.
- Observe the engine mount while raising the engine.
Fig 2: Locating Engine Lifting Point
Courtesy of GENERAL MOTORS CORP.
Replace the engine mount if the following conditions exist:
- Heat check cracks cover the hard rubber surface.
- The rubber cushion is separated from the metal plate of the engine mount.
- There is a split through the rubber cushion.
Replace the starter, if removed. Refer to STARTING SYSTEM in Starter
Replace the oil filter adapter, if removed. Refer to OIL FILTER ADAPTER REPLACEMENT .
Lower the vehicle.