I have a 1998 Ford Expedition XLT with a E4OD transmission. After I did a major tune up coils, plugs, cleaned fuel injectors I reconnected the battery. Took Elise for a test drive, runs like new however an issue I never had. The transmission shifts perfect through gears 1,2,3,4 but now will not down shift into lower gear when I press the gas pedal to the floor. Anyone know what happen to cause this. Thanks for your assistance.
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