Here's a general outline. This is NOT a comprehensive guide, and you should consult a repair manual specific to your vehicle year and model for detailed instructions and torque specifications. Repair manuals (like Haynes or Chilton) are invaluable for this type of work.
Tools You'll Likely Need:
* Jack and Jack Stands: Absolutely essential for safely supporting the vehicle.
* Engine Support Bar: Crucial to prevent the engine from dropping. A transmission jack can also be helpful.
* Sockets and Wrenches: Various sizes, likely including metric sizes.
* Ratchet and Extensions: To reach tight spots.
* Torque Wrench: To tighten bolts to the manufacturer's specifications.
* Pry Bar: Might be needed to break loose stubborn bolts.
* Penetrating Oil (PB Blaster or similar): To loosen rusted or seized bolts.
* New Rear Motor Mount: Ensure you get the correct part for your specific vehicle.
General Steps (Consult your repair manual for specifics):
1. Safety First: Disconnect the negative battery cable. Secure the vehicle on jack stands. Never work under a vehicle supported only by a jack.
2. Access the Mount: You'll likely need to partially or fully remove some undercarriage components to access the rear motor mount. This might include exhaust components, heat shields, or other parts. Your repair manual will detail this.
3. Support the Engine: This is the most critical step. Use the engine support bar to securely support the engine's weight. The engine can be heavy and even a slight drop can cause damage. A transmission jack can assist in supporting the transmission as well.
4. Remove the Old Mount: This usually involves removing several bolts that secure the mount to the engine and the chassis. Use penetrating oil if needed and take your time to avoid stripping the bolts.
5. Install the New Mount: Carefully align the new motor mount and bolt it into place, tightening the bolts in a star pattern to ensure even pressure. Use your torque wrench to tighten to the manufacturer's specifications.
6. Reassembly: Carefully reinstall any components you removed to access the mount.
7. Lower the Engine Support: Slowly lower the engine support bar after ensuring the new mount is securely fastened.
8. Double Check: Inspect your work. Ensure all bolts are tight and that nothing is obstructing any moving parts.
9. Test Drive: After reconnecting the battery, test drive the vehicle to check for vibrations or unusual noises.
Important Considerations:
* Rust and Corrosion: Older vehicles often have rusted or corroded bolts. Penetrating oil and patience are key here. If a bolt breaks, you might need to drill it out, which adds complexity.
* Torque Specifications: Using the correct torque is critical to prevent damage to the engine or mount. Always consult your repair manual.
* Professional Help: If you're not comfortable working on your car, or if you encounter unexpected problems, it's best to take it to a qualified mechanic.
This process is simplified. The specific steps and challenges will depend on your particular vehicle and its condition. Again, strongly emphasize the use of a repair manual specific to your 2003 Ford Focus ZX3 hatchback. Improper repair could lead to serious damage or injury.
