Search results for query: Atc1

Never assume anything. For AutoTemp2, what I'd want to know is whether the heater works (even if the A/C does not). And, as for the A/C, the 1971-1973 ATC2 system can actually be fixed for good (unlike the 1969-1970 ATC1 systems, which I would not touch with a 10ft pole).

@Trailer Park — tell us more about DH46H9D139876 I see a loaded Y3 wagon: 383-4, A35 towing package, and even H53 ATC1.

@saforwardlook has given the key info. See references in various posts: Search Results for Query: Atc1 | For C Bodies Only Classic Mopar Forum

Not familiar with the term ATC1 - what is it?

I love it but, unfortunately, this car has the (dreaded by me) ATC1 so I am out. @saforwardlook @sixpkrt

It was the first generation of Automatic Temperature Control and was not generally reliable or repairable due to lack of parts availability.

...an OK system except for the bakelite plastic housings that cracked after just two years. Mercedes made the housings out of aluminum so they didn't have those problems at least. Are you sure about Mercedes buying the rights to ATC1 Stan and if so, do you recall where you saw that claim...

Yours is only the second car in recent times where the ATC1 system actually modulates and works correctly. Mine has about the same miles on it but I never got it running. Now I am wondering whether it would work or not?????????? But then, if it did, for how long?????

You are most likely to be right. I would trust your memory far more than mine. Perhaps I was thinking Mercedes bought the rights to "ATC II 1.0" while Chrysler already introduced "ATC II 2.0" (as how I try to describe the difference)? The point being... Mercedes bought into it, lol. Thanks...

Edit: it makes no sense to me but the engine bay pic shows ATC1. I need to check.

Needs charged. . .

I'm looking for a 1969 Imperial MANUAL A/C Dash Control Unit. If someone has something or knows someone, please let me know. Photos are from the ATC1 unit it's supposed to replace. Thanks! :)

That car is RUSTY . !

Not mine. For sale on Netti. @polara71 gets the credit for identifying this EW1/L2F4/318 with AutoTemp (ATC1) as DL27G0D132053, a former Florida resident that then spent time parked in NJ for a decade or so. She went up for sale on Salvage Bid in October 2018: @mdh157 is the one who alerted...

...Power Disc Brakes, great! 2. (very) bad news: the H53 code for AutoTemp I. CH41T0C253018 is a 1970 sedan, so her A/C system is the infamous ATC1 -- about which I have heard so many awful things, from folks like @saforwardlook who know these fusies inside and out, that I simply will not...

...Vinyl top is shot, probably 4 quarter size rust bubbles which tells me possibly some metal work, and probably window removal to do the repair. ATC1 but not charged, drove nice. Appears to be under 50K original miles, but no confirmation. Radiator was pushing out fluid after 10 minute test...

These are hard to price without photo's. 2dr or 4dr? The minor tic at idle is probably nothing to worry about, especially if the car has sat for a few days, probably just a lifter that had leaked down. The ATC is a major problem as parts are getting hard to come by and this system was not...

I have heard that the servo unit tends to leak vacuum when they age, causing it not to respond to the vacuum signals. I haven't really examined mine yet either.

Thanks for your confidence :D I haven't found a reason why it shouldn't work. Nothing burned, nothing broken. But I haven't got deep into the atc1 system yet because it's not priority nr.1. Do you know what part usually fails on the atc1 system? I've read about problems with the silicon valve...