cooling and o2 sensor issues

[ivorton74]

So I went and worked on my truck today. Got the maf sensor on and took it for a short drive. My temp gauge isn't working so my buddy hooked his scanner so I could monitor the temp while Im driving. After a bit the engine got hot..at about 230 degrees. So we checked the hoses and they're still cold...the radiator is full of coolant...took the top hose off and there is no coolant in there at all. Took the thermostat off and checked it and that turned out to be fine so we put it back on and vacuumed the system. Tried putting coolant back in and its not going in the motor...its in the radiator but not going in and circulating. Also there is a lopy idle...my buddy says the o2 sensors are not reading right...he says either they're faulty or they are not far down the exhaust. Beside those issues the truck pulls like a freakin train even with that 3.08 gear and its sounds even better now that all 8 cylinders are firing. I cant believe all that power I have now!!