I just replaced the top o2 sensor and the check engine light came back on. We took it and had it hooked to a computer and it said the o2 sensor had low voltage. Now the problem is the check engine light went back off, but the trans is not shifting properly. Iy you put it to the floor it starts off good and when it goes to shift it feels like it slips. If you let off the gas a little it kicks back in and runs great. Also if you go to pass someone it will accelerate to 60mph and then feel like it is stuck, but once again if you let off the gas a little it kicks back in and runs great. Also you can smell it in the cab. Could this all be caused by the o2 sensor reading low voltage?
Mar 23, 2009 at 6:33 AM