PAExplorerXLT
Well-Known Member
- Joined
- October 14, 2014
- Messages
- 263
- Reaction score
- 0
- City, State
- Montgomery County, PA
- Year, Model & Trim Level
- 1998 XLT 4.0 SOHC AWD
Recently when I go wide open throttle I hear a boom/roar that is not unlike a leaky muffler but I don’t get it revving the engine while parked. I also a feel a vibration inside. Could this be some kind of intake roar too? I still feel it is coming from underneath the car. It shows up under load and quiets down when it upshifts.