gt acx 85 4wd cab with perkins engine wants to run hot if rolling hay or working hard .does any one have that problem, an my headlights quit also the top cab lights will work an that it ck all fuses can anyone tell me what it could be . it is 2005 model, i also blow the radiator out all the time .also uses alot of fuel 4 gallon ahour . is that about right or not.