Raymond Zent , Utah - 1994 Chevrolet Lumina
A heating/cooling question. When he turns the blower above low, he hears a grinding sound, like a chickenbone caught in a fan. Guys say that is kind of what he's hearing--some piece of the fan is broken off--maybe a vein rattling around, or it could be or he could have a worn out blower motor bearing. Needs to replace the blower motor.