Loud noise from rear of RAV4?

katyc12

I have a 2006 Rav4 and every time I drive my car after it's been sitting for a while there is a very loud noise coming from the rear of the car, the noise usually lasts about 10 to 20 seconds and only happens when I press on the accelerator, and is always when I go forward, never in reverse. The noise is usually louder when it is humid or it is raining. 
Any suggestions as to what this could be and how to fix it would be helpful. Thanks. 

elias

sounds like emergency/parking-brake or other brake caliper in the rear could be stuck/rusted after vehicle is parked for a while. if that's indeed what it is, it's not a big deal unless it stays stuck. to check for alternative issues, carefully/quickly touch the possibly-very-hot wheel on each side in the rear of the car after highway driving - or better yet, measure the temperature with one of those nifty new thermometers. if one wheel is burning hot and the other is much cooler, that is very significant, and probably unsafe, and requires additional diagnosis.