Replacing the anti-roll bar (also known as a sway bar) on a Mercury Grand Marquis involves several steps, tools, and safety precautions. click here for more details on the download manual…..
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The anti-roll bar helps reduce body roll during cornering by linking the left and right wheels. Below is a detailed guide to replacing the anti-roll bar, including descriptions of every component involved in the process.
### Tools and Materials Needed:
1. **Tools:**
– Floor jack
– Jack stands
– Socket set (including ratchet and extensions)
– Wrenches (metric and standard)
– Torque wrench
– Breaker bar (optional)
– Pliers
– Hammer
– Pry bar (optional)
– Lubricant (penetrating oil)
2. **Replacement Parts:**
– New anti-roll bar (sway bar)
– New sway bar bushings
– New sway bar end links (if necessary)
– New hardware (bolts, nuts, washers if required)
### Safety Precautions:
– Work on a flat, stable surface.
– Use wheel chocks to prevent the vehicle from rolling.
– Always wear safety glasses and gloves.
– Make sure the vehicle is securely supported on jack stands before working under it.
### Step-by-Step Replacement Process:
#### 1. **Preparation:**
– Park the vehicle on a level surface and turn off the ignition.
– Open the hood and disconnect the negative battery terminal to avoid any electrical issues.
#### 2. **Lifting the Vehicle:**
– Use a floor jack to lift the front of the vehicle.
– Secure the vehicle on jack stands to ensure safety while working underneath.
#### 3. **Remove the Wheels:**
– Loosen the lug nuts on the front wheels using a lug wrench.
– Remove the lug nuts and take off the front wheels to access the sway bar.
#### 4. **Locate the Anti-Roll Bar:**
– The anti-roll bar is typically located under the front of the vehicle, running parallel to the ground, connecting the left and right suspension components.
#### 5. **Remove the Sway Bar End Links:**
– Identify the sway bar end links, which connect the anti-roll bar to the suspension components.
– Use a socket wrench to remove the nuts securing the end links to the anti-roll bar and the lower control arm.
– If the end links are rusted or damaged, you may need to use penetrating oil and a hammer to loosen them.
#### 6. **Remove the Sway Bar Bushings:**
– Locate the sway bar bushings that secure the anti-roll bar to the vehicle’s frame. They are generally held in place with bolts.
– Use a socket wrench to remove the bolts securing the bushings.
– Carefully slide the bushings off the bar.
#### 7. **Remove the Anti-Roll Bar:**
– With the end links and bushings removed, you can now remove the sway bar from its mounting points.
– Gently maneuver the sway bar out of its position. Be cautious of any other components that may be in the way.
#### 8. **Install the New Anti-Roll Bar:**
– Position the new anti-roll bar in place, ensuring it is correctly aligned with the mounting points.
– reinstall the sway bar bushings onto the new bar
and secure them with the bolts. Make sure to torque them to the manufacturer’s specifications.
#### 9. **Reinstall the Sway Bar End Links:**
– Attach the end links to the anti-roll bar and the lower control arms.
– Use a torque wrench to tighten the nuts to the recommended torque specifications.
#### 10. **Reinstall the Wheels:**
– Reattach the front wheels and hand-tighten the lug nuts.
– Lower the vehicle back to the ground using the floor jack.
#### 11. **Tighten the Lug Nuts:**
– Once on the ground, use a torque wrench to tighten the lug nuts to the specified torque.
#### 12. **Reconnect the Battery:**
– Reconnect the negative battery terminal.
#### 13. **Test Drive:**
– Take the vehicle for a test drive to ensure that everything is functioning correctly and to check for any unusual noises.
### Conclusion:
Replacing the anti-roll bar in a Mercury Grand Marquis is a straightforward but essential maintenance task that can enhance the vehicle’s handling and stability. Ensure that you follow all safety precautions and torque specifications for a successful replacement. If you encounter any difficulties, consider seeking assistance from a professional mechanic.
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