Intermittently my F-150 Supercrew 2001 5.4(?)L (gasoline) truck will sound like it's revving like crazy, but there's no added power to go with it. I'm having trouble remembering to look at the tachometer when this happens, but I think it really isn't increasing the rpm's. What it really sounds like is a big air sucking sound more than an increase in rpms. Does anyone have any idea what I'm trying to describe and what it's all about? It even seems like a loss of power when this is happening.
- posted
18 years ago