If your vehicle *does* have air suspension, here's how to check if the air compressor is working:
* Listen for it: With the ignition on, try to locate the air compressor (often near the rear wheel well or under the vehicle). You should hear a low hum or whirring sound if it's running. This is usually only for a short time as it builds pressure.
* Check the pressure: Your vehicle will have air suspension pressure sensors. Consult your owner's manual to find out how to check the air pressure in the suspension system. If the pressure is low and the compressor isn't running, that's a likely issue.
* Observe the height: With the engine running, watch the rear of the vehicle. If it's noticeably lower than it should be (and you know the suspension is otherwise functioning correctly), the compressor may not be building pressure.
* Diagnostic tools: A code reader or OBDII scanner can often detect problems with the air suspension system, including compressor faults.
* Visual inspection: Check the compressor itself for any obvious signs of damage, loose connections, or leaks.
If you're unsure, consult your vehicle's owner's manual or a qualified mechanic. Improperly functioning air suspension can be a safety hazard.
