So recently my truck has been experiencing problems starting. I let the glow plugs warm up, once the light turns off I turn the key but it only cranks for a fraction of a second before the crank stops abruptly. This may happen between 1 to 4 or so times before it actually starts up. Seems to be worse in the mornings or when it’s cold. Not sure if that’s actually related or not. Also, not sure if this is related or not, but the clock keeps reverting back to military time after every time I shut the truck off. Those two issues seemed to come up at the same time. On a sidenote, this is the first Diesel truck I’ve owned that did not come with the block heater on it. Has the technology improved enough over the years that it is not necessary to have one in a 2017 diesel or is it still a must for colder climates?