What to know
- Park your vehicle on a level surface, engage the parking brake, and place wheel chocks behind the wheels opposite the ones you’ll be working on.
- Using the jack, carefully raise the vehicle and secure it on jack stands to provide a stable work environment.
- If you disconnected the sway bar earlier, reattach it by inserting the link into the control arm and tightening the nut.
Control arms play a pivotal role in your vehicle’s suspension system, ensuring stability, handling, and a comfortable ride. When these crucial components wear out or fail, it’s essential to replace them promptly to maintain optimal performance and safety. This comprehensive guide will walk you through the process of changing a control arm, empowering you with the knowledge and confidence to tackle this automotive task.
Safety First: Essential Precautions
Before embarking on this project, prioritize your safety by adhering to these precautions:
- Park your vehicle on a level surface, engage the parking brake, and place wheel chocks behind the wheels opposite the ones you’ll be working on.
- Ensure your tools are in good condition and appropriate for the job.
- Wear safety glasses and gloves to protect yourself from potential hazards.
Tools and Materials: Arming Yourself for Success
To successfully change a control arm, you will require the following tools and materials:
- New control arm assembly
- Jack and jack stands
- Socket wrench set
- Torque wrench
- Pry bar
- Ball joint separator
- Lubricating spray
Step-by-Step Guide: Changing the Control Arm
1. Lift and Secure the Vehicle:
- Using the jack, carefully raise the vehicle and secure it on jack stands to provide a stable work environment.
2. Remove the Wheel:
- Locate the lug nuts on the wheel and loosen them slightly, but do not remove them completely.
- Jack up the vehicle until the wheel is off the ground.
- Remove the lug nuts and take off the wheel.
3. Disconnect the Sway Bar (if applicable):
- If your vehicle has a sway bar, locate the link connecting it to the control arm.
- Use a socket wrench to remove the nut and disconnect the sway bar.
4. Remove the Ball Joint:
- Identify the ball joint where the control arm attaches to the steering knuckle.
- Use a ball joint separator to carefully separate the ball joint from the knuckle.
5. Remove the Control Arm:
- Locate the bolts or nuts securing the control arm to the vehicle frame.
- Use a socket wrench to remove these fasteners.
- Carefully remove the control arm from the vehicle.
6. Install the New Control Arm:
- Align the new control arm with the mounting points on the frame.
- Insert the bolts or nuts and tighten them securely using a torque wrench to the manufacturer’s specifications.
7. Reattach the Ball Joint:
- Position the ball joint into the steering knuckle.
- Use a ball joint separator to press the ball joint back into place.
8. Reconnect the Sway Bar (if applicable):
- If you disconnected the sway bar earlier, reattach it by inserting the link into the control arm and tightening the nut.
9. Install the Wheel:
- Place the wheel back on the hub.
- Tighten the lug nuts by hand as much as possible.
- Lower the vehicle to the ground.
- Use a torque wrench to tighten the lug nuts to the manufacturer’s specifications.
10. Final Checks:
- Double-check that all bolts, nuts, and connections are securely tightened.
- Inspect the other components in the suspension system for any signs of wear or damage.
Post-Replacement Maintenance: Ensuring Longevity
To ensure the longevity of your new control arm and maintain optimal suspension performance:
- Get a wheel alignment to ensure proper tire wear and handling.
- Regularly inspect the control arm, ball joints, and other suspension components for any signs of wear or damage.
- Lubricate the ball joints and other moving parts periodically to reduce friction and extend their lifespan.
FAQs: Addressing Common Queries
Q: How often should I replace control arms?
A: The frequency of control arm replacement depends on driving conditions, vehicle usage, and the quality of the components. Generally, control arms should be inspected every 50,000 to 100,000 miles and replaced as needed.
Q: Can I drive with a broken control arm?
A: Driving with a broken control arm is highly dangerous and should be avoided. A broken control arm can impair steering, handling, and stability, increasing the risk of accidents.
Q: Is it possible to change a control arm at home?
A: Yes, it is possible to change a control arm at home with the right tools, knowledge, and safety precautions. However, if you are not confident in your abilities or lack the necessary equipment, it’s recommended to seek professional assistance.