Your low pressure switch is disconnecting the clutch because you
have less than twenty pounds in the suction side while pumping, it
should be between 34 and 38.
God Bless America, ßill O|||||||O
http://www.billhughes.com/

MPClark wrote:
>
> I have a 97 Jeep Cherokee. Now that it's the summer I want to use my air
> conditioning. However, when I turn on the A/C, no cold air is put out
> and the compressor clutch cycles on and off, as if it were in defrost
> mode. I am sure it is set on max a/c with the fan on high, and still
> the clutch cycles on and off. I also checked the pressure of the Freon
> and that is where it's supposed to be. I was thinking it might be a
> relay of somesort that controls the clutch, maybe it is stuck it the
> defrost position? Any help would be greatly appreciated.
>
> --
> MPClark