If you hit a bump or a pothole, is your car bouncing all the way home? Does it look like you're carrying a ton of bricks in your trunk? When you turn a corner, do you feel like your car is going to slide right off the frame? If your answer to any of these questions is a "yes", then it's likely you need to replace your coil springs. Excessive bounce or sagging in your vehicle's ride is indicative of a suspension problem, one that can usually be traced back to your springs. Isolating which coil springs need to be replaced can be determined by looking at the car when it's parked. Wherever your car is riding too low (either front or rear) is going to be where the springs need to be swapped out. Failing to do this when needed will significantly add to the amount of abuse you are giving your shocks and struts. This will reduce their lifespan as well, forcing you to replace them sooner. So if you suspect your coil springs are worn out or broken, it is best to replace them with new ones right away.
Coil springs vs. leaf springs.
Most early automotive suspensions were supported by leaf springs. This changed in the 1930's when coil springs found their way onto independent front suspensions. Not only was this a significant weight savings over earlier designs, but coil springs require little to no maintenance. They also provide much firmer road-handling capabilities than leafs, however were not favored for large, heavy vehicles such as pickup trucks and cars over 2-tons. So coil springs did not find wide range popularity or use on rear suspensions until vehicles became lighter. Still, they remain our most efficient method of springing vehicle weight today.
How do I replace a coil spring?
If you have to ask, it will probably not go very well. It can be very dangerous to remove and install a new coil spring without a spring compressor. Trying to change a spring without one could result in severe bodily harm, which is why we recommend professional installation. However, if you are feeling confident, here's how you would do it:
First, you will have to remove your wheels. Loosen the lug nuts on each wheel, but do not take them off completely. Lift the car and put it on jack stands. Now you can remove the lug nuts and take the wheels off.
At this time, you may have access to the springs. If not, removal of the brake rotor, caliper, control arm, or wheel hub might be necessary.
Next, unbolt the shock or strut assembly from the steering knuckle and remove it. If it is attached to an upper or lower mount, you will have to unbolt that as well.
Now it's time for the serious work. Using a coil spring compressor, hook onto the coil at points exactly 180-degrees opposite from one another. Remember to apply even amounts of pressure to each side by turning your socket a few times on one side, and alternating to the other side. Take your time.
Once the coil spring is compressed, it will be loose enough to remove it. Do so carefully. Slowly remove the compressor tools, recompress the new spring, and install it into the place of the old one.
Finally, repeat the process on both sides and re-install all the parts you removed earlier.
The best suspension parts online.
At Car Parts Discount, we make buying new coil springs easy. We carry top brands from quality aftermarket and original equipment manufacturers, plus we can ship your order right away. So whether your car is new or old, modern or vintage, check our offering of replacement coil springs for your application. Don't delay.