OK, as I thought the air cleaner was OK, changed it anyway though. I plan to pull the injectors and have them tested. My question is do the injectors just unscrew? If so are they clockwise or counter? I will do a compression test while I have them out. With 195K miles on it what should I expect in the way of readings. I know the maintenance done on the car since I have had it, but not to clear on the P.O. Any insight into the injector removal (tricks or problems) would helpful.

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Keith Schuster
2006 E350 98K miles
2013 Ford Explorer 15K miles