Heat won't shut off

[FredMcJoe]

justanswer.com/chrysler/7aoz7-1985-chrysler-fifth-avenue-cold-hot-control.html

If you scroll down, you'll see what they are calling the blend door motor but I don't recognize it. It's been years since I looked at mine and maybe I don't have a good memory of it. It does show a means to test to see if its working and that would say if the connector was loose.

 

[Cordoba Tom]

i'll check for that tomorrow afternoon, and let you know how it goes. Thanks again!

 

[volare 1977]

Is the heater valve good?

 

[Aspen500]

Is the heater valve good?

I've seen those where they operate and look fine, until you take the hoses off and look inside to find the actual valve is rusted away. Ran into that often when I was a Ford dealer tech way back when.

 

[Cordoba Tom]

I've seen those where they operate and look fine, until you take the hoses off and look inside to find the actual valve is rusted away. Ran into that often when I was a Ford dealer tech way back when.

It does look like the valve is good, but not sure if there actually is vacuum there. I haven't had much time to work on it, but I did see that the blend door is on the other side of the control unit, and I am going to try to wire it closed to see if that will do the trick If it does, then I am going to hook something up to open and close it manually. I appreciate ideas I have gotten from the group members, and am always open to knowledge from other Mopar experts.

 

[volare 1977]

I may have a mopar valve. Do you have the part number stamped in the top?

 

[Mikes5thAve]

It's always been the hose fittings rusting out on the valves that have done mine in.

I don't know how the system is different between models but like I said previously working properly my 5th avenues can control the heat and cut it off without the valve in place. But dealing with the valve is probably easier then the different doors within the heater box itself.

 

[Cordoba Tom]

It's always been the hose fittings rusting out on the valves that have done mine in.

I don't know how the system is different between models but like I said previously working properly my 5th avenues can control the heat and cut it off without the valve in place. But dealing with the valve is probably easier then the different doors within the heater box itself.

I will check the number on the valve tomorrow (hopefully able to read it), and let you know, Volare. Yeah, 5th, if I can get the valve to work, I think that would be best, too. Thanks, gentlemen.