Need Ideas. Air ride compressor running more frequently.

[limitedex]

Our 2013 with just over 70,000 miles seems to run the compressor more frequently. Nothing sags or seems to be out of place other than the sound of the compressor. I understand some folks don't care for the air ride but I prefer it while towing.

The vehicle is well kept and garaged 365 days a year. What could be some quick things to check?

Thanks!

 

[Trainmaster]

Generally with these the air bags become porous or cracked and have to be replaced. I never worked on these, though in a Grand Marquis I sprayed soapy water on them looking for bubbles. You can do the same with the tubing connectors. The Marquis didn't develop the problem until it was about 13 years old, so I don't know what's normal for the Expeditions.

Here's an article about the system, which may be the same on the 2011 as the 2013:
http://www.brakeandfrontend.com/2007-2011-ford-expedition-and-navigator-air-suspension/