Jeep Grand Cherokee Air Suspension Reset [Complete Guide]

The Jeep Grand Cherokee is distinguished by its weatherproof character and stylistic details that have created variety in ride quality over the years. 

However, it remains one of the most glaring drawbacks of the car, specifically the air suspension system. 

This is a common problem in almost all cars, in the Overland edition. 

However, homeowners regularly run into such problems as air leaks, which, in turn, cause many performance challenges.

In this article, we shall look at some of the air suspension problems in the Jeep Grand Cherokee and how to deal with the problems in the most efficient way.

Understanding the Air Suspension System

In the Jeep Grand Cherokee, the air suspension system provides a semi-active ride using air-adjustable hydraulic dampers to suit different driving conditions.

This system has been introduced to enhance the handling and comfort of the vehicle particularly when it is driven on rough patches of the road or when heavily loaded. 

But, as in any complex system, it has its weaknesses as well and that happens with time.

Common Problems with the Jeep Grand Cherokee Air Suspension

As the air suspension system has been used over the years, many aspects can go wrong, which are rather common:

1. Air Leaks: It is quite common to experience air leakage from the air springs or airlines. Such leakage causes the vehicle either to sag or lean towards one direction.
2. Compressor Failure: The Air Compressor is an important part of a vehicle in that it regulates the pressure of suspension air. If it does not do so, the whole system might be compromised.
3. Faulty Height Sensors: These sensors measure the height of the vehicle. These sensors can be defective thus leading to a situation where the suspension can be mismatched.
4. Worn Air Springs: With time, due to air pressure within air springs, the rubber material used will also break off, which may lead to failure in the prevention of air pressure loss.
5. Damaged Air Lines: The lines that convey the air into the various parts of the vehicle suspension system may become damaged and air may commence leaking out.

Diagnosing Air Suspension Issues

Once you sustain air suspension problems, it does not mean they cannot be addressed. 

All you have to do is find ways how to treat that particular problem. 

There are certain ways to try to diagnose the issue as well as the associated effects here.

1. Visual Inspection

The reasonable procedure is to assess the condition of the air suspension systems visually. 

It includes air springs and compressors as well as their airlines. Examine these parts for any visible signs of materials being worn out, cracks, or even leaks. 

If you feel air pressure trying to push through from the lines or springs, then these will be damaged and might require new content.

2. Bounce Test

Perform a bounce test by grabbing each corner of the vehicle and pushing downwards. 

If the corner rebounds more than necessary or does not quickly go back to its original position. 

It can be concluded that there is a defect in the air suspension.

3. Air Leak Detection

While the vehicle is on, examine if there are any sounds, especially leaking hissing sounds that suggest air is escaping from the suspension system. 

This might assist in determining where the leak comes from.

Dealing with Air Suspension Problems

After similarly establishing the problem, it is time to establish the solution. Below are some of the air suspension problems and their possible solutions:

1. Air springs replacement

This is a common problem that arises when air springs are either worn or damaged and warrant replacement. 

This in most cases entails detaching the old springs and placing the new springs. 

It is important to check that the new springs are compatible with the vehicle model.

2. Air Lines Repair or Replacement

As for airlines with minimal damage such as breakdowns, these may be effectively sealed. 

However, with severe damage, the whole airline segment must be pulled out and replaced.

It is important to ensure that all the connections are tight enough to avoid any leakages.

3. Change the Compressor

The part that requires replacement is the compressor if it is not running properly. 

In many cases, this can be done in just a few hours with only handheld tools. Be sure to turn off the power supply before you begin these steps.

4. Inspect and Replace Height Sensors

If the height sensors are not working properly, these devices may require adjustment or even replacement. 

This helps to make certain that the suspension system can function properly irrespective of the weight and type of the car being driven.

Step-by-Step Approach to the Repair of Air Valve Problems

In many instances when working with a Jeep Grand Cherokee. 

A common problem is the possible failing of the air valves resulting in a drainage of air leading to loads of the same. 

Here’s how to rectify these issues:

1. Useful components
2. Vice grips
3. Screwdriver
4. Replacement air valves
5. Soapy water (for leak testing)

Step 1: Locate the Air Valves

Raise the hood and determine the location of air valves placed on top of the front door shocks. 

Fantastic! These valves are always mounted with air lines attached to them and serve the purpose of controlling air pressure inside the shock structure.

Step 2: Remove the Old Valves

Never try to spin it when loosening the screw as it may slip. You may crush your fingers.

Hold the valve with vice grips to keep it from turning while you use a screwdriver to unscrew it. 

Carefully clean up any remaining old valves and place them aside.

Step 3: Install the New Valves

Take the particularly made air valve from its packaging place it and thread it to capture any thread. 

Adhere to the clamp as it should snap in, sealing all gaps to prevent any leaking.

Step 4: Test the System

Start the vehicle’s engine and watch the suspension system. 

If it rises to the right height and keeps without movement, it means the repair has worked. 

If the air is still squeaking, further actions could be needed.

Step 5: Inspect for Other Oil Leaks

To ensure the integrity of the installation, grease up the lot doors and flap the valve with soapy water. 

If bubbles appear, it is evident there is a leak that has to be repaired.

How to Apply Each Preventive Measure

To prevent additional problems with the air suspension system, use the following preventive ways:

1. Regular Checks: It is recommended that the air suspension parts most subject to wear should be examined regularly.
2. Keep the System Clean: Some airlines and valves must not be soiled or filled with materials such as dust which may lead to blockage or damage.
3. Monitor Air Pressure: Observe the pressure within the suspension air system, in case the ride height is elevated or lowered.
4. Connect Only Repair Parts of the Best Quality: it is advisable to use good quality replacement parts whenever any of the components are exchanged.

Conclusion

In conclusion, the air suspension system on the Jeep Grand Cherokee is rather complex and yet so pivotal to the vehicle’s working performance and comfort. 

As you diagnose the problems and their solutions, it will be possible to keep the Jeep in working order. 

Timing of routine maintenance and repairs will ensure the operability of your air suspension system in the future at its best for years to come.