John the wire coming directly from the horn relay, thru the fuse holder & relay only controls the hi speed of the blower. The lower 3 speeds go thru the heater box resistor. Also, if your heater box (where the fan mounts) is fiberglass (like mine) you need the dedicated ground wire. On mine it goes from one of the motor mount screws to the body. Without the ground wire it won't work on any speed - ask me how I know that one.
This wiring diagram may help you : http://elcaminocentral.com/articles/wiring/712.gif It does not show the A/C high speed wiring but the wiring thru the resistor is there. You can expand the image by running your cursor over the diagram & then clicking on the orange icon that will appear in the lower right. Gives you standard wiring color codes for a 69. On 11/24/07, John Nasta <[EMAIL PROTECTED]> wrote: > > Thanks. That helps a lot because for all I know the blower motor that > is in there might work, which would mean that all I really need to > replace is the heater core. I'll see what it takes to get that purple > wire back where it belongs and test the other one like you said. > > BTW, in mine the long wire w/ the female fuse holder on it is black > and the short one w/ the male end on it is orange. > > > Quoting Malibu <[EMAIL PROTECTED]>: > > > John, I'll attempt to answer your wiring problem. > > The fuse holder is hot from the horn relay,(should be red) > > it takes a 30 amp fuse. The male end should be blk/or. this should be > > connected to a 3 pronged plug for your a/c relay. The purple wire > > should come off this 3 pronged plug and connect to the male plug on the > > blower motor. The relay plug should also have a dark blue wire that > > goes to another 3 prong plug for your resistor. The resistor is > > connected to your switch in the car and it controls the speed of the > > blower motor. They all have to be connected for the blower to work. You > > can check your blower by running a wire from the bat to the male plug > > and see if it runs. The motor has to be grounded so be sure you have a > > ground from the screw that holds the motor in place to the body. Hope > > this helps you out. > > > > -- Rick Schaefer 72 TPI El Camino
