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Possible blockage in the rear air units expansion valve. I just replaced mine for the same reason.
If 1993 suburban rear ac not cold how can check the expansion valve?
There are separate expansion valves in the rear, so even if the front system is failing, the rear unit could still work normally.
Most likely the rear expansion tube or valve is defective.
I have the same problem in a 1999 K2500 with the LT package. Any ideas?
yes
It is possible that the rear A/C lines have been cut and sealed so the freon stays in the front but does not go to the rear A/C. That is the case on my SububanAnswerThe suburban may have a heater core in the rear blower that is not shutting off. AC cannot blow hot, there is a coil for the AC and a separate coil for the heater. A simple fix is to have a shut off valve fitted under the hood to turn off the hot line to the front and rear blowers.
It is located on the left rear of transfer case.
The rear door lock on a 1996 Chevy Suburban will not open if the mechanism has become jammed or the child lock switch has been flipped. If the child lock has been engaged, they must be unlocked from the front first.
Yes they are the same chassis from 1993 to 1999
Most likely this is the "Fresh Air Intake" door malfunctioning; rear AC's normally do not have the ability to draw fresh air, and normal AC system have fresh air intake that draws hot air from outside.
tail shaft