@Fivefingerdeathpunch Would an OBD II system read the transmission info? I have one that should work with bluetooth on my phone, but haven't had a chance to see if the unit actually works ($30 one's from amazon are known to work about half the time).
@scottydoggs I know I get third because I hear it shift around 30-something with light throttle or if I let off the gas around 30 (higher speed with more throttle). If I have the shifter set to "3," it won't shift to overdrive until I put it in drive (D) around 47-52 mph (whenever I decide). If I start out in drive, it will shift as early as 43 mph with very light throttle, but that's when the issue happens. It just seems that if it shifts into overdrive at too low of a s