Question about glow plugs

[Crazy Cowboy]

Being new to diesel engines (I love them by the way! ) I was wondering, if you start your truck before the 'wait to start' light goes out, what is the possible negative impact(s)?

 

[95_stroker]

In Orlando? None.

Up north, the truck might start and run rough or it might not start and you'll have to cycle the plugs again.

 

[bling821]

That's what I figured too. It took a few times to get into the habbit of waiting when I got mine. I just thought to myself, after I forgot the first time, about what they are there for and determined that there was no negative impact. It was kind of funny when I jumped into a gasser and took the key to run and sat there. Then I thought to myself, "What am I waiting on?"

 

[JLDickmon]

nothing.
in fact, Ford runs the glow plugs for a period of time (30 seconds? I think) after start up for smoke control.

 

[Crazy Cowboy]

Good to know. Thanks!