The 2013 Jeep Grand Cherokee’s air suspension provides adjustable ride height and improved comfort but is prone to issues like air leaks, compressor failures, and sensor malfunctions. Common fixes include replacing faulty valves, repairing compressors, or converting to coil springs. Regular maintenance, such as checking for leaks and ensuring proper battery voltage, can extend system life.
How much does good air suspension cost?
What Are the Most Common Problems with the 2013 Jeep Grand Cherokee Air Suspension?
Common issues include air spring leaks, compressor overheating, failed height sensors, and electrical glitches. Leaks often stem from cracked rubber air springs, while compressor failures result from moisture buildup or excessive workload. Warning signs include sagging corners, erratic ride height adjustments, and dashboard error messages like “Service Air Suspension System.
How Can You Diagnose Air Suspension Issues in Your 2013 Jeep Grand Cherokee?
Start by scanning for diagnostic trouble codes (DTCs) using an OBD-II scanner. Inspect air springs for visible cracks or tears. Listen for continuous compressor operation, indicating a leak. Test the compressor’s output pressure and check fuses/relays. Use a soapy water solution to identify leaks at valve blocks or fittings. Verify battery voltage, as low power can disrupt sensor calibration.
For a more thorough diagnosis, monitor the system’s air pressure retention overnight. If the vehicle sags significantly, it confirms a major leak. Check the dryer cartridge in the compressor assembly—clogged or saturated desiccant reduces efficiency. Owners in humid climates should replace dryer elements every 3-4 years. Wiring harness inspections are critical; corroded connectors near wheel wells frequently cause intermittent faults.
What suspension gives the best ride?
What Is the Average Cost to Repair or Replace the Air Suspension System?
| Component | Cost Range |
|---|---|
| Air spring replacement | $300–$600 per corner |
| Compressor replacement | $500–$900 |
| Height sensor | $200–$400 each |
| Coil spring conversion | $1,000–$2,500 |
Should You Convert to Coil Springs? Pros and Cons Explained
Pros: Eliminates recurring air suspension failures, reduces maintenance costs, and improves reliability for off-roading. Cons: Loss of adjustable ride height, reduced towing capacity, and potential voiding of warranties. Coil springs may also alter ride comfort, making the vehicle feel stiffer on paved roads.
Does the Vehicle’s Battery Impact Air Suspension Performance?
Yes. The air suspension relies on stable 12V power to operate the compressor and sensors. Weak batteries force the compressor to work harder, leading to premature failure. Sudden voltage drops can also trigger system resets, causing erratic height adjustments. Test battery health regularly and replace it if voltage falls below 12.4V when idle.
Owners should also inspect alternator output—ideally 13.5-14.8V while running. Poor charging systems create voltage fluctuations that confuse suspension control modules. Consider upgrading to an AGM battery for better power delivery, especially in cold climates. Install a dedicated power relay for the compressor if adding auxiliary lighting or other high-draw accessories.
“The 2013 Grand Cherokee’s air suspension is innovative but demands vigilance. Owners often overlook the battery’s role—weak power sources strain compressors, mimicking mechanical failures. For off-road use, I recommend auxiliary air tanks to reduce compressor cycling. Always address leaks immediately; even minor cracks can escalate into costly repairs.”
— John Mercer, 4×4 Systems Specialist
FAQ
- Can I manually adjust the air suspension height?
- No—height adjustments are automated based on driving mode or speed. Aftermarket controllers may enable manual overrides.
- How long do air springs typically last?
- 70,000–100,000 miles, though harsh climates or heavy loads can shorten lifespan.
- Does disabling the air suspension affect other systems?
- Yes—stability control and headlight leveling systems rely on suspension data. Disabling it may trigger warnings.