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Does anyone happen to know offhand if there on where any differences in where the brackets where located inside the 72 A/C heaterbox. I was just finishing up the heaterbox rebuild and was trying to button up all the last little things and went to install the j hook and noticed there is nothing...

I'm not sure if this will help. Mine is a 72 dart with a /6 it's hard to see but the hose with the white tracer goes to the heater control valve . Sorry about the orientation for some reason I allways have a issue with it.

Yup, that's what it was. Opened up the switch pulled out all the contacts, threw them in my tumbler with crushed walnut for about an hour and they weren't the same color. Before they looked like brass. Now they are shiny silver. Before I screwed the back on I hooked everything up in the car and...

Thanks for the tip Bill. If I wanted to use a relay to feed the blower on all three positions would I need 3 relays or could it be done with one? Also you were the only one that responded to another thread asking the difference in these switches. Is it possible that the switch I'm using is...

The old switch everything worked but the buttons didn't move smoothly and didn't fully push all the way in when I took it away the mountain shaped cutouts were rounded out so I figured that it wasn't fully canceling out before the next button gets pushed. The new switch seems to work like it's...

Sorry I've been traveling for work. Yes nm9stheham the switch does work in 3 of the 5 positions. Defrost and a/c and of course off all work. When the switch is in max a/c or heat nothing happens. The doors don't move and the blower motor will just stop. Thanks redfish that's right I couldn't...

Thanks I might try that i just baught the switch from the old car parts northwest guy on ebay. I figured it was NOS so it should be good right? well i know its damp in the northwest and it wasnt in plastic so that makes sense. man i dont want to take that switch out again that was an SOB with my...

Thanks, I was looking at a diagram that you supplied me with. But I dont see anything that would allow the blower motor to work on defrost and ac but not on heat and max ac. Ive looked it over several times and just dont seewhat it could be. Would a bad heater switch cause this???

Ok I just finished rebuilding my a/c heater box in my 72 dart with a slant six. While I had everything out I replaced the heater switch. Actually this is a 2 part questions that may be related. There is what appears to be a brown (ground wire?) That is attached to the hold down for the heater...

Is there any real difference in these switches? I thought mine just needed to be cleaned up and lubed , but when I opened it up the flat pieces inside were chewed up. I just bought a nos one on ebay that looked the same but I notice that there are a few different part numbers. Prices range from...

I dont remember how much they cost but Detroit Muscle Technologies (a vender on here) has them. Very high quality!

Right on. That's cool I checked the fuse.... Well I didn't test the fuse but it wasn't visibly bad I'm pretty sure that it was marked a/c I noticed that there was one for the blower as well. But the diagram will help a lot thank you.

It doesn't come on. I wasn't sure where to start. I was thinking that the compressor clutch was bad but I don't know where to begin the diagnosis. Thanks Charlie I'll try to jumper that switch. I'm just going from memory but the dryer has 2 connectors correct? And your talking about jumping...

I have a 72 dart with a slant six and factory a/c the compressor isn't cycling. Last summer it was fine. I drove it a little in the winter so obviously I didn't use the a/c this summer no air. What would cause the compressor not to cycle? And how to test the parts that may cause this. If its...