I Pulled an ATC system from a 1986 NewYorker and am attempting to install it into a 1994 Shadow. I have two substantial problems so far...
1. The blend door actuator (servo motor thingey under the dash) does not quite match the heater box. I was under the impression that all the hvac boxes are the same, this one indeed looks the same as the one in the Yorker and fsm, it has the two mounting points, but they are about 1/4inch and 3/4inch out of alignment??? Further, the shaft seems to be 90 degrees out from what the range on the motor should be - however I think I might have worked around the shaft situation by monkeying around with servo itself. I can of course attach it somehow, but maybe there is a reason I am having trouble?
2. The blower stays on high no matter the fan setting, even with the system turned off. The fsm suggests unplugging the 2 wire connector from the Power module, doing so stopped the blower. This apparently means the power module is bad. I assume the transistor could just be replaced? Anyone done this or have better ideas of where to start?
Thanks for the help, if I am missing info here, please let me know