So i dont think this is a huge problem and just wondering if anyone has come across this before. sometimes when im idleing my truck will rev up around 50 rpm just like a little hickup. only happens randomly, maybe once a week or twice a day. Has anyone had this happen to them? is it maybe a hint something is going bad? if anyone has some insight that would be awesome.

 

It maybe the PMD doing it

 

It would just make it rev up like that randomly?

 

yes