After engine warms up oil pressure drops to 0 at idle. on 2001 Dodge Ram 2500

It goes back up to about 28 lbs when rpm reaches 1000 or more.

Asked by for the 2001 Dodge Ram 2500
Check your oil level.It sounds like the oil pump is going bad.
Oil level is full. No gas smell in oil
1 more answer
I had a 1995 DODGE RAM 1500 with a 318 c.i.d. engine that did something similar,If oil level is ok. , and there is no knocking or tapping, Try another oil press. switch .There not that expensive but they are a bit of a pain to get to......back around the distributor.If memory serves me right i think you may need a special socket to remove the switch. Good luck