AutoTemp I (1968)

["jsadowski" <jsadowski@xxxxxxx>]

I know that the 69 system is fused & not on a breaker, so something else is going on here. Sometime in 73 when I had my first 69, the resistor burned out & the shop wired the system so it would work till they could get another resistor for it. They taped the temp dial in the lowest position & warned my  not to touch it. Even with it taped, hitting bumps would often blow the fuse.Even that new, it took quite a while to get the part from Chrysler.

John

----- Original Message -----

From: David Duricy

To: mailing-list@xxxxxxxxxxxxxxxx

Sent: Thursday, July 01, 2004 2:14 PM

Subject: IML: AutoTemp I (1968)

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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