01 Montana blows cold in rear, not front

Is your heater blower motor working on all speeds ? Are you get any air coming from the rear vents ?

I would have the AC system re charged with fresh 134a. You can also have that system tested for leaks.

So it blows in the front and the rear ok. Where else do you want it to blow?

If it had to be charged, it probably has a leak. Check low side pressure. If low, repair leak and recharge. If pressure is good, please get back to us for next troubleshooting step.

First off make sure the thermostat settings are set the same on the control panel for both front and rear units if thats ok it could b a few possibilities. 1 pluged heater core in rear 2 blocked heater hose try looking into these and see if it helps any

yes, you can charge it yourself for less than $20. Purchase a large can of R-134a and a recharge hose. Follow instructions at http://www.fixya.com/cars/r5833579-auto_truck_c_recharge and let me know if you have questions

you need about two or three mor little cans of freon.If you dont have enough in the system the compressor clutch will not engage( turn ) of course you know this is the street version,not professional.but it will do.

no but there is a expansion valve u will need to replace

My 96 accord had the same prob. if you don't have a leak you need to make sure
of that first if no leak and not over charged ( my 96 accord holds 22.9 ounces of 134 )
anyway the fan on left side of motor was bad I replaced it and it works great.
Day/Night and inbetween

first thing to do before you charge it again replace the 'O' rings in back of the compressor also add some a/c oil because that will help the a/c compressor not to rattle this is the way I do mine I put in a can of 134A first and after that I put in the 134A oil and then I put in the rest of the 134A that is needed
I would disassemble the front brakes and check out the wheel bearings and sometime there is nothing wrong with them just need to add bearing grease but if they are scarred or damaged replace them