How to Replace Struts on a Car Step-by-Step Guide

How to Replace Struts on a Car Step-by-Step Guide

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Struts are an essential part of your car’s suspension system. They absorb road shocks, support the vehicle’s weight, and help maintain control while driving. If your struts are worn out, replacing them will restore your car’s smooth, safe ride. Here’s a simple guide on how to replace struts on a car.

Tools You’ll Need
Before starting, gather the following tools:

Jack and jack stands

Lug wrench

Socket set and ratchet

Breaker bar

Spring compressor

Torque wrench

Penetrating oil

Safety gloves and glasses

Step 1: Park Safely and Lift the Vehicle
Park the car on a flat, level surface. Set the parking brake. Use a lug wrench to slightly loosen the wheel lug nuts. Lift the car with a jack and secure it with jack stands. Remove the wheel completely.

Step 2: Locate the Strut Assembly
Find the strut behind the wheel assembly. It connects the steering knuckle to the car’s body at the top inside the engine bay.

Step 3: Apply Penetrating Oil
Spray penetrating oil on the bolts holding the strut in place. This makes it easier to remove rusty or stuck bolts.

Step 4: Remove the Brake Line or ABS Clip
Some struts have brake lines or ABS sensor wires attached. Carefully unclip them or remove the bolts holding them to the strut.

Step 5: Unbolt the Strut from the Steering Knuckle
Use a breaker bar and socket to loosen the large bolts connecting the strut to the steering knuckle. Remove the bolts and separate the knuckle from the strut.

Step 6: Remove the Top Strut Mount Bolts
Open the hood and locate the strut mount bolts at the top of the strut tower. Hold the strut firmly while you remove these bolts. Carefully pull the entire strut assembly out.

Step 7: Compress the Spring
Use a spring compressor tool to safely compress the coil spring on the old strut. Always follow the tool’s instructions and wear safety gear.

Step 8: Remove and Replace the Strut
Once compressed, remove the top nut holding the strut and spring together. Carefully separate the old strut. Install the new strut, reposition the compressed spring, and reattach the top nut securely.

Step 9: Reinstall the Strut Assembly
Position the new strut assembly into the strut tower. Insert the top bolts first but don’t tighten them yet. Reattach the bottom of the strut to the steering knuckle and torque the bolts to the manufacturer’s specs.

Step 10: Reattach Brake Lines and ABS Clips
Secure any brake lines or sensor wires to the new strut using the original clips or bolts.

Step 11: Reinstall the Wheel
Place the wheel back on and tighten the lug nuts by hand. Lower the car and fully torque the lug nuts with a torque wrench.

Step 12: Repeat on the Other Side
Always replace struts in pairs (both front or both rear) for balanced performance.

Step 13: Get a Wheel Alignment
After replacing struts, visit a professional shop for a wheel alignment. This ensures safe handling and even tire wear.

Conclusion
Replacing struts improves your car’s handling, ride quality, and safety. Follow this guide carefully, and always prioritize safety with proper tools and protective gear. If unsure, contact a certified mechanic for professional help.