hard downshifts 07 expy
 

Well we decided to go out of town on spring break. About 5 hrs away and the vehicle was running good. Till we started driving on hills and thw tranny needed to downshift to accelerate. It did it about 5 times tonight. At high and low speed downshifts. It wont do all of the time. Had the transmission replaced by ford less than a year ago. After numerous reflashes to the old tranny. Is this just another reflash issue?

Let me add that I recently replaced spark plugs about 2 weeks ago. And 2 coils were replaced because of misfire. Could this.be a sign that another coil is going out? I have no CEL on