ac revisited

[cannon man]

ok guys, this may not be workhorse but it goes to the ac problem many of us are having.
i put the ball valve in the heater hose and insulated the dash box under the hood but it did'nt help much. so i'm thinkin maybe i'm low on freon. i hooked my gauge to the low preasure side but i get nothing. like its dead ended. the block next to the dash unit(under the hood)has the low preasure port and another cap, under which is what looks like a valve stem. i tried to open it (counter clockwise)but it would not move. what gives?? anybody know?
thanks a bunch your help is apreciated.

2004 gulfstream 8292 w w-20 chassis

[cannon man]

ok guys, this may not be workhorse but it goes to the ac problem many of us are having.
i put the ball valve in the heater hose and insulated the dash box under the hood but it did'nt help much. so i'm thinkin maybe i'm low on freon. i hooked my gauge to the low preasure side but i get nothing. like its dead ended. the block next to the dash unit(under the hood)has the low preasure port and another cap, under which is what looks like a valve stem. i tried to open it (counter clockwise)but it would not move. what gives?? anybody know?
thanks a bunch your help is apreciated.

2004 gulfstream 8292 w w-20 chassis

["007"]

Not many answers go to "FIND" just above you and type in" add freon to ac" you will find some good info there. Also take off the check mark.

[cannon man]

thanks for the heads up. there was some good stuff there but not the answer to my ?? so i'll keep lookin. thanks again dave

[Horsepowerfan]

Does the compressor engage when you turn your dash air on with the engine running? If not, then you may be low on refrigerant or there could be an electrical problem preventing the compressor from engaging.

You mention hooking a gauge to the low pressure side. What kind of gauge are you using and are you sure you're connected to the right port?

The R134a ports do have one-way valves in them similar to a schrader valve, but I don't think they're removable. An R134a A/C manifold gauge coupler is a quick connect type that has a knob on it that when turned will depress the valve inside the port to the system.

I'm not sure I fully understand where you're connecting to, but if you can give a bit more detail I'll be glad to try to help out.

Also, being that your coach is a 2004, you may still be under Workhorse's factory 3yr./36k mile chassis warranty. If there's a leak in the A/C system that's part of the chassis it may be a covered repair.