This is to clarify my message from the last post. The subject might help (I'm new at this as you can see). I have a heater control valve that I have dismantled cleaned, and reassembled. I found the line up pins on the gears, and have tried to keep everything in sinc, but I think the feedback pot was set up to around 4K ohms, How critical is this setting, and where should the valve be positioned. When I took it apart I found it in the mid position. Also for those who would like to know, I might have found a replacement for the little motor inside I am waiting for a call back from the motor manufacturer.






69 Shelby GT350 Conv 52 K miles
79 300SD 75 K miles
89 Jeep Cherokee 179 K miles
96 Chrysler Concorde 120 K miles

Mine took a dump on me last year, I took it apart and parts went every which way! I tried putting it back together, the motor ran for a few seconds, who knows what it was doing!! And all last winter I only had "OFF" or "FULL HEAT". So when I got cold I'd turn it on, when I got hot I'd turn it off. Most of the time I was too cold or too hot! I found a couple of them in the wrecking yard and took a chance on them, one was good, and it's been working fine since. Probably set me back about twenty bucks or so.

Peter G...I'd be glad to learn whatever you have to share about the valve.

Bill.......Do you have any idea if Chrysler used that same set-up on any of their cars, or did they just make it for MB?

Ernie

Thanks Bill.....I just thought that if they did use it on their own cars..... that will give me another area of the wrecking yard to go snooping in.

Ernie