01 Oct 08, 09:41 pm
Most fuel pumps have 6 or 8 segments. By scoping not only can you see fuel pump rpm, but you can also see if you have a bad spot in your pump. Landing on these bad spots can create the no-start problem, especially when conditions (cold) helps to create a larger counter-electromotive force that will prevent the pump from spinning initially.
I'm not saying that's your problem, but it could be...
I'm not saying that's your problem, but it could be...