I purchased a used 2013 Ford Edge with Ecoboost less than two weeks ago and am having buyer's remorse: after a few days of having it, the lift gait started trying to kill me (closing after immediately opening, and when I put my hands up to stop, it keeps coming down): the check engine light came on exactly one week after purchase - Code P0299: Turbo/Super Charger Underboost, then after 4 days the check engine light went off; today the wipers won't stop wiping, even thought they are in the off position and there is no water on the windshield. I think I bought a lemon. Help!