Notice: 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.
Notice: 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. Due to the small
clearance between the oil pan and the oil pump screen, jacking against the
oil pan may cause the pan to be bent against the pump screen. This will result
in a damaged oil pickup unit.
Visual/Physical Inspection
- Support the powertrain using the appropriate support method; refer to
the powertrain mount replacement procedure. Raising the powertrain removes the weight
from the engine mount and creates slight tension in the rubber.
- Clean the mount and surrounding area to ensure good visibility of the
mount condition.
- Verify all attaching fasteners are present and at the correct torque.
Refer to
Engine Mount Replacement - Left Side
and/or
Engine Mount Replacement - Right Side
for
any torque sequencing and/or torque specifications.
Important: Observe the engine mount while raising
the engine. If the engine mount exhibits any of the following conditions the mount
may require replacement. Refer to
Engine Mount Replacement - Left Side
and/or
Engine Mount Replacement - Right Side
.
- Slightly raise the engine approximately 5-7 mm.
- Inspect the mount for any of the following conditions:
• | Hard rubber surfaces - covered with extreme heat check cracks. |
• | Rubber separation from the metal plate of the engine mount. |
• | Rubber is split through the center of the engine mount. |
| Important: Before replacing any engine mount due
to suspected fluid loss, verify that the source of the fluid is from the engine mount
, and not the engine or an external source.
|
• | If equipped with a hydraulic mount, inspect for GLYCOL™ fluid leaking
from the engine mount. |