Perhaps I am mistaken Brian,
but on my SD the glow plug relay light isn't just an idiot light,
it also stays lit for a varying amount of time in regards to how cold it is.
When it is 30 degrees out it will stay lit for longer than 60.
I believe that it measures in some round about way the resistance and keeps the light lit for shorter/longer depending.
I didn't mean wait for another 35 seconds after the first go around.
Sorry if I was unclear
No big deal- its back and running
