Hi everyone I own a 2003 Mack premium 12 tonne taut liner. Does anyone know what the problem is if the truck does not start without using start up ####### spray. In the morning it use to work as normal and when turned off and warm would not start again without the spray. Now it doesn't start in the mornings as well. It's cranks but doesn't fully start. After using the spray the truck starts and works with no problems. I have taken it to Mack and they couldn't figure it out. Does anyone know what the problem is ?