2007 Navigator 80k miles. Just got new coolant flush coil plugs and spark plugs. It has full power when getting on it but rough at idle and stinks of gas very bad. I took it back after tune up and they cleaned maf and said change oil. Well I had 700 miles on last change but did anyways. Still bad. I was told to bring it in have plugs removed blow carbon out of cylinders and retorque plugs. Does this sound like the issue? I believe this could be the issue if this is as common as he said it was but still skepticle. Should they check anything else? No see codes...

 

are 07's still under warranty? or are you 07 folks paying per visit at the local Ford Dealer? or other local shop? if so I can just imagine the (bring it in, it's this) that goes on. The bring it in (I want more money). Bring it in it's THIS THIS THIS. How much money are these dang places making off of folks?