Troubleshooting Factory Air Leveling System Issues

My vehicle is not maintaining a level height. I never hear the compressor run. What could be the cause?

• If the compressor doesn’t seem to be running, you should check your vehicle’s electrical system and verify that a fuse or circuit breaker is not blown or tripped. If these are fine, it is likely that there is an issue with the compressor or system hardware and the problem needs to be diagnosed by a qualified service technician.

I hear the compressor run normally, but the vehicle doesn’t sit at the right height. What could be the cause?

• If the compressor is running normally but the vehicle doesn’t seem to maintain height, the vehicle’s height sensor is most likely the cause. Inspect the height sensor for damage or corrosion. Many height sensors can be adjusted. Reference the original equipment service manual for vehicle specific procedures, or have the vehicle repaired by a qualified service technician.

My compressor runs constantly, or frequently for long intervals. What is the cause?

• This could be caused by a number of things: a ruptured air shock or strut, a leaking air line or a leaking air fitting.

How can I find out where the leak is?

• These leaks can typically be identified by using a spray bottle with soapy water and checking for bubbles, in the same way you would check for a leak in a tire. Be sure to spray the air supply lines down all the way to the compressor paying careful attention to areas where the air lines may contact parts of the vehicle.

I believe my air shock / strut is ruptured. It’s leaking air. What can I do?

• Air shocks and air struts cannot be repaired. We recommend that you replace air shocks and struts in pairs as this will ensure that the capacity and function between the two will be equivalent and provide proper leveling performance.

I think I have a bad air line – how can I replace it?

• In many cases our 1/8th inch air line kit part number 141099 can be used to replace the original equipment air line, assuming the line size matches. Please call the Answerman Tech Line to determine if there is a match for your system, how to replace the air line and for help in identifying if this is the problem.

If I find the fitting is leaking, what should I do?

• Most of the time, the fitting is either contaminated, damaged, or was improperly installed. Try removing it, inspect for damage or contamination, then clean and reinstall it. If this does not work, please call the Answerman Tech Line, for vehicle-specific troubleshooting details.