Do I Need to Replace the Springs When Changing Shock Absorbers?

[JessicaLynn]

Replacing shock absorbers does not necessarily require replacing the springs. If the car shakes severely, it is usually not related to the springs, as springs primarily serve a cushioning function. A faulty shock absorber can affect the car's balance, but replacing them in pairs (left and right) will not cause issues. Unusual noises are often due to aging or wear of the shock absorber buffer rubber. Below is more information about shock absorbers: 1. Shock absorbers are not designed to support the vehicle's weight but to dampen the oscillations after the springs absorb shocks and to absorb energy from road impacts. In a car with faulty shock absorbers, the vehicle will bounce excessively after passing over bumps or uneven surfaces. Shock absorbers are meant to control this bouncing. 2. Without shock absorbers, the rebound of the springs cannot be controlled, leading to severe bouncing when driving on rough roads. During turns, the up-and-down motion of the springs can also cause loss of tire grip and traction. The ideal scenario is to use shock absorbers to limit the spring's rebound to a single cycle.

[VonMadeline]

Should I replace the springs when changing shock absorbers? As someone who frequently maintains my own car, here's my insight: It's not strictly necessary, but highly recommended to replace them together to save a lot of trouble. Last time I only replaced the shocks on my old car without touching the springs, and the ride became noticeably bumpier. Later, I discovered the old springs had lost their elasticity due to fatigue, forcing the new shocks to work harder, which caused severe wear within just a few months. A mechanic friend explained that springs typically last 80,000-100,000 km. Replacing only one component can unbalance the suspension system, compromising handling stability and even posing risks, especially at highway speeds. I recommend checking for rust or deformation while you're at it. If your car is older or frequently carries heavy loads, replacing them promptly actually saves money and ensures safety in the long run. Also, don't forget to realign the wheels to maintain optimal overall performance.

[Jan]

From a mechanic's perspective, replacing shock absorbers doesn't necessarily require changing springs, but in practice, I always advise customers to replace both. The reason is that shocks and springs work as partners - one absorbs vibrations while the other supports the vehicle body. If old springs are fatigued with uneven strength, new shocks will bear extra pressure and wear out faster, compromising both lifespan and driving safety. This risk is particularly pronounced in complex urban road conditions where braking or cornering could lead to loss of control. Checking spring condition is straightforward - look for compression deformation or rust marks, and replace if found. With a healthy suspension system, you'll enjoy both driving comfort and fuel efficiency. Never underestimate these details. I recommend comprehensive evaluation during routine maintenance to avoid repeated visits to the repair shop.

[JaydenDella]

After driving for half my life, I believe it's best to replace both the shock absorbers and springs together. Old springs lose their elasticity over time, and installing new shock absorbers won't show significant improvement while accelerating wear, leading to more bumps and noise. My experience is to check the spring height and corrosion condition; replace them if any abnormalities are found to extend the suspension's lifespan and ensure a smoother, more worry-free ride. This is especially important for older cars—don't skimp on daily maintenance.