Rayme Las Cruces, New Mexico - 2001 Mazda Tribute
An engine question. When she steps on the gas, she hears a cricket/chirping noise from under the hood. It varies with acceleration, but only happens when she steps on the gas. Her boyfriend thinks it's a vacuum hose, but car runs fine. so that's not it. Tom and Ray were not sure of the answer (roof rack?), Ray finally suggests it's a belt tensioner.