MCExpy10
Member
If you can feel heavy vibrations at idle it’s possible you have a misfire. They often don’t set of a CEL. At your mileage it’s worth asking because they are due. Have spark plugs and boots been changed? Both items can cause misfires at the 100k mark and cause acceleration concerns. The drive by wire can be sluggish at times on the Expeditions but it’s not because your model year. Drive by wire has been in the Expedition since the 2nd gen starting in the 2004 timeframe.
Thanks, that's excellent info! Plugs and boots have been done, shortly after I bought it at 80,000 miles. They ended up warrantying one of the spark plugs out for a mis-fire.