Hey all,

I've got an unmolested 3.0 4x4 with 55k miles that suddenly will not start. It cranks strong, but that's it.

Some details:

- I can hear the fuel injector relay near the ECM clicking with key turned to On

- I no longer hear the click/buzz from under the hood when turning the key to On and again back to Accessory. Is there a relay or component switching or self checking? My guess is the problem is connected to this. After letting it sit, I did hear the clicking and the truck tried to start, after that it's been nothing.

- Before not starting, the truck had a slightly rough idle and a bit of lope at certain throttle positions (I thought injectors, possibly fuel pump was the cause)

- I assume I have spark (newer cap, rotor, plugs, and wires) and the ECM was replaced by the PO.

The trucks parked away from my shop so I haven't dug into it yet, I'm terrible at diagnosing so any help is appreciated.