Here's a breakdown of the process:
1. Identification and Assessment:
* Identify the broken mount: Locate the source of the noise or vibration. Chevy Malibu engines typically have multiple motor mounts (at least three). They're usually rubber or hydraulic components connecting the engine to the chassis. A visual inspection might reveal cracks, tears, or significant sagging.
* Determine the extent of the damage: Is it just a loose bolt, a worn-out mount, or a completely broken mount? A loose bolt is the easiest fix; a broken mount requires replacement.
* Consult your vehicle's repair manual: This is crucial. It will show you the exact location of the motor mounts, the necessary tools, and the correct torque specifications for bolts.
2. Tools and Materials:
You'll likely need:
* Jack and jack stands: Essential for safely supporting the engine.
* Wheel chocks: To prevent the car from rolling.
* Sockets and wrenches: The sizes will vary depending on your Malibu's year and engine.
* Torque wrench: Absolutely necessary to tighten bolts to the correct specification, preventing damage.
* New motor mount(s): If the mount is damaged beyond repair.
* Replacement bolts (if needed): Always check the condition of the bolts.
* Gloves and safety glasses: Always prioritize safety.
* Repair manual: As mentioned, this is your bible for this repair.
3. Repair Procedure (General Outline):
This is a simplified overview. Always refer to your repair manual for specific instructions for your Malibu's year and model.
* Safety First: Secure the vehicle on level ground with the parking brake engaged and wheel chocks in place.
* Support the Engine: Use a jack and jack stands to safely support the engine. This is crucial to prevent the engine from falling. The manual will indicate the best support points.
* Access the Mount: Depending on the location of the broken mount, you might need to remove various components (e.g., underbody shields, air intake components).
* Inspect and Repair/Replace:
* Loose Bolts: Tighten the bolts using the correct torque specification from your repair manual.
* Worn or Broken Mount: Carefully remove the old mount, ensuring you have access to all bolts and fasteners. Install the new mount, aligning it correctly. Tighten the bolts to the specified torque.
* Lower the Engine: Carefully lower the engine back into its position.
* Reinstall Components: Reinstall any removed components.
* Test: Start the engine and check for any unusual noises or vibrations.
Important Considerations:
* Hydraulic mounts: Some Malibu models use hydraulic motor mounts. These are more complex and might require specialized tools for removal and installation. In most cases, a replacement is necessary rather than repair.
* Professional Help: If you're uncomfortable performing this repair yourself, it's best to take your Malibu to a qualified mechanic. Improperly installed motor mounts can lead to serious engine damage.
This information is for guidance only. Incorrect repair can damage your engine or cause injury. Always consult your vehicle's repair manual for specific instructions and safety precautions.
