Q: crank no start, replaced fuel pump, idles hard and dies on crank then will eventually level out and work, replaced throttle body,

Hi Sean. Thanks for sending in your question today. Typically a rough idle issue is caused by difficulty in mixing the air and fuel correctly. This is handled by the throttle body, the mass air flow sensor, and delivered through the fuel injectors. Any of these parts could be the source of your problems. It appears based on your description, that you might be chasing possible repairs, instead of correctly identifying the root source of your problems. So, it’s probably going to save you a lot of time and money having a professional mechanic come to your location to complete an onsite inspection.