How to Fix a Sagging Suspension on your Car Before It Becomes Dangerous

When an automobile ages, it sags as much as your stomach does. After years of usage, metal fatigue causes the springs to lose their resilience. A specific degree of sag won’t impair a car’s handling.

In the past, leaf springs were used in the rear suspension while coil springs were employed up front. Most modern vehicles use coil springs in all four corners and have significantly upgraded suspension systems. Checking out the variety of services and products Pedders offers will allow you to determine whether or not they have what it is that you need.

Keep reading to learn how to fix a sagging suspension on your car before it becomes dangerous.

About Suspension Sag

As the springs bear the whole vehicle’s weight, this condition is called suspension sag. Additional suspension components degrade with time, but their failure does not cause a sagging car.

Reduced ride height and altered wheel alignment are unavoidable consequences of the spring’s settling. That’s why wheel alignment specialists must always check the ride height before making adjustments. Typically, if the sag is more than an inch, new springs are required.


Sag may be caused by a leak in the air or hydraulic fluid suspension system on a vehicle equipped with air springs (airbags) or hydraulic-type suspension. It can also be caused by a failure of the air/hydraulic fluid distribution controller on such a vehicle.

Regular metal springs are used on a car (coil springs, leaf springs, torsion bars). The vehicle’s weight putting pressure on the spring over time, combined with heat, which destroys the temper features of metal, would be the most common cause. Over time, these factors will wear out the spring and cause the suspension to become loose.


Sagging springs may also compromise stopping distance and control. When accelerating, stopping, or turning, the capacity of a wheel to retain traction is greatly affected by the weight it carries.

A wheel that loses traction and spins or skids under heavy acceleration, turning, or braking is most likely the one on which the spring is the weakest. More body roll is permitted by weak springs, putting more stress on the shocks, struts, and other suspension parts.

How to Fix it

Repair a jeep, truck, or car with leaf springs for a smoother ride and stiffer grip. Learn how to loosen your bent suspension to improve your ride comfort and decrease lean with the help of the steps below. It won’t help with worn springs or bushings, but this will help you replace them properly.

Lessening The Tension In The Suspension

  1. A torque wrench impact, measuring tape, wrenches, and sockets will be required.


  1. Determining how much of a correction is required, you need to take measurements of all four wheels or corners of the car. If you haven’t changed any parts, the next techniques will only be able to rectify a discrepancy of an inch in suspension ride height. So, if you know where you started and how much you need to adjust, you can let go. Loosen the nut, but don’t remove it entirely.


  1. Recheck your work once the springs are free to rotate on the bolts. To help things settle, give the car a gentle rock. If this solves your problem, you can loosen it up again. If not, you should have the leaf springs re-arched or replaced.


  1. The shackles and frame mount for the leaf springs must be torqued to the correct amounts for the springs to function properly. Generally, the new front spring should help it settle down for good.


  1. If you need help resolving your issue, you may seek the advice of experts.


A worn spring is no better than no spring at all. As a result of the ongoing stress it is under, the molecular structure of the metal begins to creep. The spring gradually flattens and loses its arch (coil spring) as it weakens (leaf spring). It is important to fix your sagging suspension before it becomes dangerous and to avoid accidents.

Read also: Velocitation


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