Funny popping from exhaust at idle sometimes

[mackey]

After a while of driving sometimes at idle I will hear a small popping noise. It is pretty noticeable and I can't figure out what it is. At a low idle (700rpm) my oil pressure is around 24#.

I also have a wideband installed and my car is close to 14.7, a:f so I don't think it is that. My throttlebody also started whistling too this week.

Any ideas?

 

[88mouse]

Got a vid?

 

[mackey]

I'll take one asap. It's raining right now.

 

[85_SS_302_Coupe]

My car does something like what you described also and it's a carbed engine....it almost sounds like a miss....or like a really really mellow backfire. Most 5.0s i've driven do it though so i never worried about it.