Here's a general overview of the process. Again, this is not a substitute for a proper repair manual; use this as a guide only.
Tools You'll Need:
* Wheel Chocks: Essential for safety.
* Jack and Jack Stands: Securely support the vehicle. Never work under a car supported only by a jack.
* Lug Wrench: To remove the wheel.
* Wheel Alignment Tool: For precise measurement and setting (Highly recommended, but not always strictly required for replacement, final alignment is needed after the job is done though).
* Tie Rod Separator/Ball Joint Separator: To separate the inner tie rod from the steering rack. A pickle fork is possible but risks damaging the rack.
* Wrench(es) for Inner Tie Rod: The size will depend on your vehicle; consult your repair manual. Often a combination wrench and a socket wrench are needed.
* New Inner Tie Rod: Ensure you get the correct part number for your vehicle.
* Torque Wrench: Crucial for proper tightening to prevent damage and ensure safe operation.
* Penetrating Oil (like PB Blaster): Helps loosen rusted or seized components.
* Safety Glasses: Protect your eyes.
* Gloves: Protect your hands.
Steps (General Outline):
1. Safety First: Engage the parking brake, chock the wheels, and jack up the vehicle securely on jack stands. Remove the wheel.
2. Disconnect the tie rod: This is where the tie rod separator is crucial. You'll need to separate the inner tie rod from the steering rack. Apply penetrating oil if needed and allow it to soak. Use the separator carefully to avoid damaging the steering rack.
3. Remove the old inner tie rod: Once separated, carefully remove the old inner tie rod from the steering rack.
4. Install the new inner tie rod: Carefully install the new inner tie rod onto the steering rack. Make sure it's seated properly.
5. Tighten the new inner tie rod: Tighten the new inner tie rod to the specified torque using a torque wrench. Do not overtighten.
6. Reconnect everything: Reassemble everything in the reverse order of disassembly.
7. Lower the vehicle: Carefully lower the vehicle to the ground.
8. Wheel Alignment: This is absolutely critical. After replacing a tie rod, your wheel alignment is almost certainly off. Take your vehicle to a professional alignment shop to have it properly aligned. Driving with misaligned wheels is dangerous and will cause premature tire wear.
Important Considerations:
* Rust: Older vehicles are prone to rust, which can make this job significantly more difficult. Penetrating oil is your friend.
* Torque Specifications: Use a torque wrench and adhere strictly to the torque specifications found in your repair manual. This prevents damage and ensures safe operation.
* Professional Help: If you're not comfortable performing this repair, take your vehicle to a qualified mechanic. Improper installation can lead to dangerous handling problems.
This is a simplified overview. Refer to a repair manual specific to your 1998 Mercury Grand Marquis for complete and accurate instructions. Always prioritize safety.
