i have a 2001 rav4 l edition.  i bought it last year.  my car seems to make a very high-pitched but not loud screeching sound when i press on the gas.  i’ve been thinking for a while of the best adjective to use and screeching is it, but it isn’t like tires screeching.  i generally can’t hear it unless my radio is off, the windows are down, and i’m on a narrow road (so that the sound bounces off the walls of the surrounding buildings).
 any ideas?  it’s been doing it consistently for about 6 months.  i didn’t notice it when i bought the car, but as i said, it’s difficult to hear unless you’re in the right conditions.
 thanks for your help.
 yrstruly.
How old is the serpentine belt? I replace mine every 3 to 4 years. Spray some water on the belt with the engine running. If the noise stops then it’s time to replace the belt. Get a good quality belt like the Goodyear Poly-V.
Ed B.
thanks, ed. i’ll try that. i know i haven’t replaced the belt and i doubt the previous owner did.