My 2000 Outback wagon sometimes emits a slurping sound for the first mile or so upon acceleration. "Slurp" is the best way I can think of to describe the sound and it seems to come from the engine compartment, right in front of the driver.
I wouldn't describe it as the 'marbles in a can' sound I've read about here, describing the piston slap problem, but could it be the same? Or is it just a normal engine noise?
Ryk in Denver