[cebra]

Thanks, I'll try but it doesn't make any noise in heat, cool (without AC on etc). When I click the "AC" button it starts and when I click it off it stops, I can do this on and off driving down the road....AC on, noise on, AC off, noise stops. I'll try to diagnose it better with someone else revving the motor, thought it may be a common issue so wanted to ask first to get me in the right direction. I am pretty sure though it is coming from inside the HVAC "box" under the dash on the PS so I at least got it somewhat narrowed down. Just need to figure out what all is in there, actuators, motors, etc.