AutoTemp I (1968)

[David Duricy <desotobravo@xxxxxxxxx>]

My work on the 1968 Imperial Crown convertible has
gotten to the point where I am testing the AutoTemp.
The AutoTemp has an interesting problem.

I believe that the system was working correctly when I
bought the car, and was still working correctly when I
first re-started the AutoTemp today.

However, the servo began to make a grinding sound,
while I noticed that the system would not start on
"Auto" but would start on "Hi-Auto", "Def", and
"Hi-Def". After the system is on, pressing "Auto"
turns it off.

Pressing "Off" causes a buzzing sound, which I think
is the circuit breaker, and cuts the fan abrubtly and
leaves the A/C doors open.

I cannot hear the servo trying to park.

My bet is that corrosion has gummed the servo works,
causing the motor therein to jam, and thus trip the
breaker. Does this sound reasonable to those of you
who have worked on this system?

I'd like to open the servo box. Does anyone here have
experience with this style servo? I'm curious to know
how similar or disimilar it is to AutoTemp II.

Thank you for your insights!

Dave Duricy
1968 Imperial Crown (convertible)
1973 Imperial LeBaron
1950 DeSoto Custom (Visit DeSotoland.com!)




                
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