I buy a dodge ram 2003 4x2 4.7 litersand I would like to know wich is the range of temperature because when my truck is in high way themperature gauge cross the middle mark I would like to know if it doen`t represent a problem

 

Is that towing (or with a load)? It sounds a bit hot to me, but nothing to worry about as long as it's not over temp. I will add though, if you tow, you may see an increase in temp and overheat conditions, so if you plan to haul, I'd ensure the radiator is not plugged up (just touch diffrent areas of it while it's hot, if some areas are cold to the touch, your radiator is either plugged up or low on collant.

 

Thabk you friend i will check my radiator