>Does your Imperial have the auto temp option? The valve you have shown >will work with the manual air conditioning because they used a cable to >control the temp control valve. Since you claim to have wire and hoses on >your fender wheel, my guess is you have the auto temp with the black box >control valve. Thanks for your response. Yes, it's the AutoTemp system. So apparently someone replaced the "black box" with an incorrect heater valve somewhere along the way? Any idea where I can get this "black box" or is it possible to retrofit the AutoTemp system to a manual control system? Thanks, DD