I have a q for a seasoned trans guy. I sent a trans out for repairs to clear up the common tcc codes. Trans was fine except for the codes but since the powertrain was out i figured it was agood time. The solenoid and the seals wer replace but now we have a p0748 code for pressure solenoid. We pulled it back down and replaced it but it did not help. Iam wondering what the trans guy may have not done right? The pressure is hi so now it slams into gear when shifted to drive. Its out again but just wondering so i dont get bamboozeled.