Here's a general overview. Specific steps may vary slightly depending on your exact model and the tools you have available. Always consult a repair manual specific to your 1998 Mercury Mystique for detailed instructions and torque specifications. A Haynes or Chilton manual is a good investment.
Tools You'll Need:
* Jack and jack stands: Essential for safely lifting the car. Never work under a car supported only by a jack.
* Lug wrench: To remove the wheels.
* Wheel chocks: For safety.
* Socket wrench set: Various sizes, including metric.
* Ratchet and extensions: To reach difficult bolts.
* Strut compressor: Absolutely necessary for compressing the strut spring. Using a strut compressor is crucial for safety; attempting to compress the spring without one is extremely dangerous.
* Torque wrench: To tighten bolts to the manufacturer's specifications.
* Penetrating oil (like PB Blaster): To help loosen rusted bolts.
* Wrench for the strut mounting nuts: Size will depend on your car.
* New rear struts: Make sure you get the correct ones for your vehicle.
General Steps:
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks on the wheels that remain on the ground.
2. Lift and Support: Safely lift the rear of the vehicle using the jack and securely place it on jack stands.
3. Remove the Wheel: Remove the wheel on the side you're working on.
4. Disconnect Brake Line (if applicable): Some models may require disconnecting the brake line from the caliper. If so, carefully support the caliper with a wire or bungee cord to prevent it from hanging and damaging the brake line. You may need a special wrench for the brake line fitting.
5. Remove the Strut Mounting Bolts: Locate the bolts attaching the strut to the chassis and the control arm. Use penetrating oil if needed. These bolts can be stubborn.
6. Compress the Strut Spring: This is the most dangerous step. Use your strut compressor to compress the strut spring sufficiently to allow removal of the strut from its mounting points.
7. Remove the Strut: Carefully remove the strut assembly from the vehicle.
8. Install the New Strut: Install the new strut assembly, ensuring it's properly seated.
9. Release the Strut Compressor: Carefully release the pressure on the strut compressor.
10. Reinstall Everything: Reinstall the strut mounting bolts, tightening them to the specified torque. Reattach the brake line (if applicable).
11. Lower the Vehicle: Carefully lower the vehicle using the jack.
12. Repeat on the Other Side: Repeat steps 3-11 on the other side.
13. Test: After reassembly, test the suspension and brakes carefully.
Important Notes:
* Consult a repair manual: This is a general overview, and specifics may differ significantly. A repair manual for your 1998 Mercury Mystique is essential.
* Safety: This job involves compressed springs under significant tension. Improper handling can lead to serious injury. If you're unsure about any step, seek professional help.
* Torque Specifications: Always use a torque wrench to tighten bolts to the correct specifications as specified in your repair manual. Over-tightening can damage components.
* Parts: Make sure you purchase the correct struts for your 1998 Mercury Mystique. Auto parts stores can help you find the right ones.
This process is a simplified explanation. Always prioritize safety and consult a repair manual before attempting this repair. If you're not comfortable with any part of this process, it's best to leave it to a qualified mechanic.
