I took my 2010 expedition el limited to the mechanic because my suspension in the rear was sitting very low to the tire. I was advice that I need a air suspension compressor, mechanic was charging me $850 for everything. I took my truck back and would try to tackle it myself, part cost little under 200 online. I looked online and the videos I came across was telling it located under the windshield reservoir next the battery so I thought pretty easy. Open my hood a different setup. Where is it located on the 2010 el limited 5.4?