so long story short my truck was stolen, I got it back and after it was looked at by a mechanic they said it was good. well I was driving it and noticed smoke, to find out the hose for the heater core had a hole in it. so I replaced the hose and filled my radiator with coolant, while I was at it I checked the oil and that was low as well, so I topped off. while driving it it to work one day I noticed the temp was really high 240-250 range, so I replaced the thermostat with a 180 and again topped off my coolant, it worked for a little while but then coming home it was doing the same thing and on the dash there was a check gages light. If anyone has any ideas I would really appreciate it.