Does anybody have experience with this?

2015 F150 5.0L XLT
The problem is intermittent. While at a stop in Drive, the engine intermittently drops to around 300 rpm’s and almost dies until I let off of the brake a little bit. It doesn’t happen in neutral. It happens with or without the A/C running.

i have replace the spark plugs
i replaced the A/C compressor
removed and cleaned throttle body
all general service up to date.

Truck is not showing any codes and I have taken it to dealership one time. They “can’t” recreate the problem”

 

Interesting I just posted this for my 2016 5.0 yesterday but no replies yet. I replaced the plugs last Summer but haven't done anything else yet. Truck stalled out sitting at light. No codes and started right back up.

 

My truck did the same often but would eventually stall out. Turned out to be the VCT solenoids needed replacing. Stopped the rough idle and stalling issue.