Ok noticed late night truck had been sitting for 4 days. Hopped in pushed the accel pedal to the floor while cranking and it fired off in about 2 seconds. Any idea why holding WOT would make it start faster?
Installed new high volume Melling low pressure oil pump. After removing the original for the second time for inspection. I noticed a few gears had a couple of small gouges and the cover for the pump was scoured. I already had the new pump so I installed it. It fires right up every time and has not stalled out once yet..