We just bought a 97 GLX VR6 wagon, and I've noticed a strange noise from under the hood after the engine is turned off. It seems to be coming from behind the engine, but it's hard to localize. I know it's not the cooling fan, because this noise remains even after the fan shuts off.
The noise sounds like maybe a fuel pump, because it has that high-pitched kind of sound. It's audible through the hood, but if I raise the hood, it's much more obvious. The sound persists for some time after the engine is turned off, but does go away after a while.
Anyone have any ideas? Is this normal? Thanks.