Driving fine for couple days at a time then truck will start down shifting n up shifting erratically thin goes into limp mode ! My temporary fix is to crawl under truck unplug all transmission wires cycle key on then off crawl back under plug all wires back in truck drives fine for a couple more days till the same crap! Over again codes read pressure sensor/switch and solenoid same problem with the original transmission. bought ATS transmission same problem not transmission obviously .