1993 ford f250 diesel
 

ok truck wouldnt start, the gpr was meleted, i put a new gpr in it, it clciks clicks clicks, the wts light isnt on, but the clicks do power the glow plugs, some say it should stay on and then clcik off others say it should just clcik,i tryed napa gpr ass. and now have a fprd gpr ass on it same clcikcing, the glow plugs are all new and the injectors are all new, when it does start after alot of cranking it blows white smoke, alot but its fuel , the head are fine and now leaks from coolant, so i guess it it right for this to click , click for the glow plusa , and 2 what can make it smoke so bad?:scare2: