Very Noisy Suspension

GeneLGeneL Member Posts: 1
edited September 2018 in Lincoln
I recently purchased a 2004 Navigator with 72,000 miles. The suspension makes a tremendous amount of squeaking/squealing noise particularly when it has sat for a period of time. Within about 500ft it quits. It also makes the noise when the suspension is compressed, like when I pull into my driveway. I know the truck has an air suspension. The ride height and the overall function of the system seems ok. No trouble lights or anything. Is this something as simple as lubrication or are we talking about replacing hardware? Anyone else experience something similar?
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