Transmission Hard Shifting
Ok I hear how some people are having trouble with hard shifting in the tranny well I had the same problem. Forever I couldn't figure it out it was shifting hard from 2nd to 3rd and through all the gears when I floor it! Well, I could tell it was a sensor issue but of course WHAT sensor is it?! Try the MAF sensor cause I swapped the MAF sensor with a new one and it solved EVERYTHING even the check engine light!!!