It is Low on Freon. I have a Tahoe that does the excat thing when my freon gets low..the back will be freezing cold and the front not.
There are separate expansion valves in the rear, so even if the front system is failing, the rear unit could still work normally.
YOU CAN OR HAVE A MECHANIC CHECK THE DUCT WORK
Need to know what series (3100, 3200, 3600 etc) truck and front or rear drums. With that info I can help you.
Bulb is blown. Replace bulb.
If the rear a/c runs on its own switch, check the switch, and if it works, you can check the blower motor, as the rear a/c has its own blower motor separate from the front. Should be located within the housing of the rear a/c. If the vehicle is still covered under warranty, this problem may be covered.
According to http://www.installdr.com/Harnesses/GM-Wiring.pdf the connector for the rear speakers is separate from the front speakers. If the connector for the rear speakers is loose or disconnected, the rear speakers would not work while the front ones will. The amp in the head unit (dashboard radio) powers the front door speakers. The rear door speakers and roof (pillar) speakers in the rear are powered by a second amp under the drivers seat. Either this amp is bad or is not hooked up.
the rear washer pulls from the front...fill the front end and the rear should work.
water comes out of rear but dose not come out of front ones
First check the fuse, then the motor is running (makes a buzzing sound), if the first two are ok then check the pipe work.
Could be: Low coolant in the radiator - or - thermostat stuck open - or - heater core plugged.
No, a 2001 Chevrolet S-10 rear end will not work on a 1991 Chevrolet S-10.
85-140 will work.