Hello fellows, I was wondering about something. While working on my truck, I may of let slip about a half a cup to a cup of coolant land perfectly into the holes leading from the intake manifold into the motor. I was wondering if I should pull the glow plugs and drain it or not worry about it. I don't know how much is required for hydrolocking. I also wanted to ask about a issue I can't seem to fix, my rpm gauge dies when I have my parking lights on. I have no clue how to figure this out.