SO I just bought my first diesel and i'm so excited. But I have an issue with hard shifts. I always end up in limp mode and the shifts kick like a mule. At times the tranny just shifts right on through the gears other times the tranny hunts for gear. shifting up and down and it's driving me crazy. I need to figure this out before I damage something likely more expensive than whats causing the problem. Can anyone throw me a bone?