I have a 99 Chrysler Sebring LXi and today of all days, the day after I got an oil change, fuel system cleanse and internal engine cleanse. I found out that something is wrong with my transmission. It started after I left the gas station for getting coffee. It felt like it was pulling or struggling to pick up speed. Then I looked at my speedometer and saw that it was not moving. I panicked and took it to the nearest shop and the guy said that maybe the transmission was going out. He drove it and checked the transmission fluid which was full and used the computer system where a code beginning with the letter P came up and it said that it was a transmission malfunction. On my way to take it to a specialist, the car shut completely off and did not start back up until maybe two hours later after the tow truck man picked it up. PLEASE HELP!!! The mechanic said the codes read as band ration?? malfunction and transmission malfunction!!!