My ac goes on high when you put the slider on ac heat the low high switch work right,There is 3 Relays on the fire wall we ruled them out this is Manual ac but when you take one wire of of the last relay everything works but only on low and medium any Ideas 💡

 

Anyone

 

I honestly can't understand your question, or I would have responded.

Fifty-six words with one punctuation mark, and it's a comma.

If you could possibly rephrase your question and describe the problem in a bit more detail, I'm sure we could answer it.

- Eric

 

I try again The ac in my car when you use heater the switch works low to high normal.
I but the ac on and it goes to highest setting and the low to high switch doesn't Do anything ac steps on high
This is Manual ac not climate control
Sorry for my writing but penmanship wasn't my best subject
Thanks
Steve

 

Are you saying that when you use any of the "non-A/C" settings (Vent, Heat, Bi-Level, Defrost), the fan works properly on all of the three lower speeds, and on High as well, but that when you turn it to A/C or Max A/C the fan only works on High, no matter which position the fan switch is in?

Or are you saying that the fan works normally at all settings except for Max A/C, and that when you select Max A/C, the fan only works on High?

- Eric

 

1 st one ac no max on this car

 

The Four-Season A/C system didn't have a MAX setting. Neither did the Tempmatic.

 

What year is this car?

Is it the Cutlass in the picture?

- Eric

 

I assumed it was, and that one's a '74. Those images are from the '74 brochure.

 

Weird, because both '73 and '75 have an A/C Max position, according to the respective CSMs.

- Eric

 

True for '75. Here's from the '75 brochure.






But here's from the '73 brochure. Only the Four-Season (and Comfortron) are shown. (Maybe there wasn't a Tempmatic in 1973?) No MAX position. I have a '73 service manual, too, and the images of the instrument panel in Figures 12A-1 and 12A-4 do not show a MAX position on the A/C control.

 

I misread the '73 CSM A/C Operation Chart, fig. 1B-5 (p. 1B-6).

It's the temperature lever that has a "Max" position, although, judging by the photo you posted, that position is not labeled "Max."

So, Steve:

Are you saying that when you use any of the "non-A/C" settings (Vent, Heat, Bi-Level, Defrost), the fan works properly on all of the three lower speeds, and on High as well, but that when you turn it to A/C the fan only works on High, no matter which position the fan switch is in?

What position is your Temperature control in? Have you tried moving the Temperature control to different positions?

- Eric

 

 

No I haven't I will try it and let you know
Thanks Steve
It's going to be a couple days I believe my slider is cable operated but I will try it and get back to you Thanks Again

 

Hi all, I moved the slider 1/8" and it worked low to high on a/c
Move it back to the left a/c comes on high
How would you oil the slider it if stiff first 1" on the slide
I tried doing a video but it was to big
Thanks you Eric and Jaunty75
Steve