Can anyone give me some suggestions.The car starts above 22 degrees ok.Below 22 it either wont start or if I lucky it takes forever.Once it is running it runs ok.I turn the key on and wait for the glow plug light to go off and I try to start.Should I wait 30 seconds after the light goes off before I crank to start like I read on another post? What is the proper way to start the car? The valves were adjusted about 5000 miles ago.I tested one glow plug and it read .6 ohms.Do I need to disconect the wire from each one to test them? If it reads .6 ohms does that mean it is good? When should it be replaced? Does the relay determine the lenght of time the glow plug is energized? As in if it is very cold should the glow plugs stay lit longer? I don't know how this system works.I have a new battery and alternater.Should the valve lash be checked again? Any help would be appreciated.