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2011 Grand Marquis air suspension issue

  

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There was a loud obnoxious grinding noise that would sound when the compressor turned on.  I had the compressor replaced.  It comes on works fine, but every now and then, for no rhyme or reason, the "Check Air Suspension" message comes on the dashboard.  The mechanic I took it too thought the leveler needed to be replaced, he replaced it, it still does it.  He is stumped.  I can drive for a week without it coming on, but then one day, it pops on.  Any ideas?  Thanks!


1 Answer
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Well you're not going to be able to figure that one out without a Ford dealer scanner to check the systems and do bi-directional testing but if it works okay I'd ignore it


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